Nuclear Data Sheets for a - 134

Nuclear Data Sheets 15, 203 (1975)

Nuclear Data Sheets for A - 134

E. A. HENRYt Lawrence Livermore Laboratory, Livermore, California 94550

Abstract: Nuclear data are compiled for the ten known members of the A = 134 mass chain. This compilation is based on references received through August 1974. Eight drawings are included which present most of the experimental data, including adopted values. Following the drawings are adopted level-property summaries and listings of experimental data for each member of the A-chain. A discussion of the decay scheme of each nuclide is presented in the Data Sheet section.

Substantial detail is provided for the low-lying level structure of 134I, 134Xe, and 134Ba from H-decay studies and of 134Cs from (n,3') studies. Known levels in 134Te rely on systematics for their establishment, while considerable uncertainty still exists in 134Ce levels from ~- decay. Two isomers are suggested for 134Sb and ~34Pr by their decay properties. (HI,xnT) reactions have established five excited levels in ~34Nd. Nothing is known about excited levels in lS4La, primarily because of the small Q-value for 134Ce /3-decay. There is a lack of particle- transfer reaction studies throughout this A-chain.

Acknowledgments: The compilers express their appreciation to R. A. Meyer, R. L. Auble, and F. Ajzenberg-Selove for helpful discussions and a review of the manuscript. The compilers thank R. A. Meyer, D. C. Camp, J. R. Van Hise, and J. Grabor for communicating their results prior to publication.

j'Nuclear Information Research Associate. Work supported by the National Science Foundation through the National Academy of Sciences National Research Council, Committee on Nuclear Science

203

A = 134 Drawing 1, Part 1 NUCLEAR DATA SHEETS

20000 -

1 5 0 0 0

1000 0

8000 -

7000

6000

5 0 0 0

q O 0 0

3000

2000

1000

• .S N ,, 2610 sYsT

? 0.85 S

~3q SB ?\!ll.O\ S

51 83

Q-=8491300

5 p ]08 SYST

• .s... . . . . . ~8.6p.SYST

2397.6 (6 +] 1691.3

_ (_~ *± _ _ _ 1._szs= L

_ (_2 .1 _ _ _ 1228_ . L

O* O, 0

Q-=1400 SYST

IBq N5

ql.8 M

• .s. .~ . . . . . ~ .s .o ~

• .s..N . . . . . 6~.op?o

0, I 1106.5

O,1 929.5 O,l 81t6.7

6qs.q

316.3

Q-=415060

3 .7M

52.8 M

. .s..~ . . . . . ~?o~. • .s . . . . . . . . s.4.9.s : . s .

..~.'.~-:.~.~Y..

SEE FOLLOWING DRAWINGS FOR

DETAILED LEVEL SCHEMES

...... 3jp~o= 3375.3

3083.8

2867.3 2772.90 2653.7

2352 .93

2136.57 715.812 ~ 1 t 5 I . 1~29

1965.q 0 . 2 9 0 S 377.o9s ~ ' / 1918.58 271.31&6

23q. 383 1"~1 .12 t9o.257 t613.8o ~ t78.368

8[-1 L ~ . I38.~8 2,90 H ~j 6o. 028

6(*1 \~ / t l . z ' a9 q5.7 NS q (-q 2. 082 T

/ 184 CS73 ~ ~l 8u,7.03

Q-= 2056,5 4 Q+=121613

O+ O. 0

i~ XEao 5q

N U C L E A R D A T A S H E E T S D r a w i n g 1 , P a r t 2 A = 1 3 4

• 2 . . . . . . . . s . . ? . . ? . .

• . s . .p . . . . . 8 . 1 . < 5 . 8 . .

3652

3087

293~

- - 2088.2 ~:.~ 2829.2 2007

q+ 1969.83

0 ÷ 1760.5 3* 1693.39

g+ lqOO.51

2+ 1167.90

2÷ 60g.66

O* O. 0

~3L~ BAT8 58

/

• .s N . . . . . ZWP s~sT

• .s p . . . . . ~.%1 p ~o

i+ O,O /6.67 13q LA 57 77

Q - : 3 6 9 2 3 0

• .s..N . . . . . I o39o s~s~

• . s~ . . . . . 6%ip?pT

~908.q ~183.8

3719,5

2 8 t 1 . 0

25~5.2

...... ~_61_.s

...... 2_1Zu,:2_ 1863.0 ~ 1812

_ _ 17711.8 16gl .6 - - - ' - - ' - l ~ . ~

...... 13_82:s

I0~8.7 965.3

409.2

O+ o.0 72. O H

13u, CE76 58 Q+~ 500SYST

M (~500 100 ~6,5 )

• .s, .p . . . . . 3.4.t g.SYST

? ~II M T~x-/ ? 17 M

13~ pR?s 59

Q+ : 6 2 0 0 SYST

22g~.0 LilO ,uS

--'X__/786.9 - - - k _ / 2 9 ~ . 2

°+--;x--/°" ° 8 . 5 M

13q NO 60 7q

Q+ UNKNOWN

20000

15000

10000

8000

7000

6000

5000

qO00

3000

2000

1000

A = 134 Drawing 2 N U C L E A R DATA SHEETS

2500

2000

1500

i000

500

13~SB B- DECAY I:G+CE/IOO DECRYS

( 608~ 57 6.1 1 6+ ~e~" 2397.1

[ 6800 t43 6.B ) 6+

4÷

g q, ,~"

16fli.3

1576.1

2*

,,.~"

12"/9.1

g÷ Q.O

16~-NS 13~TE IT BECRT I=G/252CF FISSION

ADOPTED LEVELS

tt+

2÷

O+

13~ TEa2 52

0 .0

1692 [6÷)

1577 (4"]

1280 [2*]

I ]*

2397. fi

169t."

1576.1

t279.1

0 .0

16~ NS

L~I.8 M

NUCLEAR DATA SHEETS Drawing 3 A = 134

13qTE B- DECRY I=G+CE/IO0 OEERYS

3.7-M 13gl IT OECRY I=G+CE/IOO OECRYS

IqOOPTED LEVELS

IL~O0

1200

I000

800

800

~00

200

o..~ o.o t41,8 M 134 \ s2 T E

15 ~6,2 )~m (I*)

q3 ~6,0 )~ (I+)

u,2 ~:6,0 l~ (l*l

(2 ÷)

(2+, 3+]

(2+, 8-)

3+

u.*

~.~.~.~-~. I108,45

~ 9 ~ %,,

~.%~'~ ~\.%%.~

~;e

823.47

846,70

.rqE

6q5.50

I 1 !

~rb~o

?

~au I 5~ 61

r b ~

8 -

]

210.47 i

i 8 o . 8 ~

7s.45 m

0.0 ~

316.~

44, 4

0.0

0 - , l

I

l l06. q~

0 - , | 923.47

0 - , I 846.70

645.50

316.3

210.47

180.89

79.45

qq.4

0.0

3 . 7 M

< 150 PS

< I00 PS

1 . 5 2 NS

5 2 . 6 M


1341 8- OECQT I-G+CE/I00 DECAYS

4000

3000

2000

I000

~'~'~" # ~, .,~. o-;?g 3493

/ 3476.S

3375.3 / " 3 3 8 0 . 1

/ 3 2 9 9 . 9 3258.0

#~_~'~'#'~-~' ~- ~.~- ~" ~-

II

!!

¥

I!

i I:

3083.8

2867.3

>b ~,.,~,.~,.~. ~ 27?2.90 .~ ~ . ~'~'~'-"

2653.7

: , ~ . 2547, 52 ' ##

~'! , I : ~ ' 2408.46 - : 2352.93

2302.2 i I 22? 1 , 9 6

I I 2136, 57

: ~" 1919,58

l " ,bo~.~,~ 1731.12 b i ~. 1813.80

8~7.03

0.0

~ XE 54 80

NUCLEAR D A T A SHEETS Drawing 4, Part 2 A = 134

qO00

3000

2000

1000

3.7-M I3ql B- DECRY I=G+CE/IOO DECRYS

n.,

rb

1966

~+ , ~ ' 17~2

L~- ~ 8~7

O+ 0.0

13 o, I B- DECRY

{3"m-- ~') ~ ~.9 ~+'--, ~÷} ~E=58.0

{3+m--,~+) 3083.8

0~,5-) + 28o-7.3

{3+-,t;+) 2772.9C

{5,~1 ," 265"3.7

{3.t)} ¢- 2588.~ {t~.,~...-, 5+) i~J47.~

1'4,5, 6) 2ti08. tE

{3,q) * L:~.9~ (3~-,~+) L:~02.2 0~,5,6} ~-- : ~ 7 1 , 9 E

15,6)+ 2136.5";,

(I)I 1919.5(

~+ 1731.1;

2+ 1613.8(

2+ 8~7.0S

O+ 0.0

O.L:W:J-5 13qXE IT DECRY RDOPTED LEVELS I=IG (REL.)

131$CS EC DECRY

{7-)

N+)

O*

lm XERo ~ 4

#

2

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L -

0.0

~7.0

O+ O.O

3~4S3 ;i~_- .....

33"P3.3 k_y ~SO t

_ _ _ -,_ , - ~ . ~ -

3,256.0

3083.8

2867.3

277'2. ~

2653.?

2588.~ 25q7,~

2352.9", 23~.2

-- 227t. ~

2]~B,5"

19B5.~ 1919.5~

1731.1;

1613.~

8q7.~

o~ 0.0

0.2£10 S


8000

6000

~000

2000 2000

1500

1000

500 ,

0

133CS (N, G) I=G/I00 CAPTURES

~-~.@',,~.

• ." ...... ~.~.~ .................................................................... .~.~. ! ..

C~7 -~~--~ [-..._!__~ \ .~ ~.~:.~.:~.~.>. ~.~. ~. ~.~. .83.~i

- - \ t I ~ "'; ~ ~ ~' ~; ' "~ " ~ I ~s~.oe~ .~ ,~ ~ ~ / ~51 .~9

~ ~-~. ~,,~ 3 ~ . ~

~'~" ~ # ~'~'~'~#

- 11 IITIO 8- ~ 138.738

• ~' s o . ~

t l+ \ "" / O.O 1 l | I I

I~11 C5 55 79

NUCLEAR DATA SHEETS Drawing 5, Part 2 A = 134

i000

8(30

600

L~O0

200

8-

5÷ q.,.

2 . 9 - H 13~CS IT OECRY I=G+CE/ IO00ECRTS

133C5 (N, G)

AOOFTEO LEVELS

~'~

.?-

@...~

l-) l-)

{-}

4 (5} ', 3 ~1 -

138.738 8-

36q] *

11.26 5 + O.O 4÷

134 C5 55 79

715.81~ 715.81~

701.98~ 701.99

483,651 483.65:

45~.086 454.08t k____/ 4 5 l . ~ 2 9 k____/ 451 .qZ~

377.09S 377.09~

271.3qG 271.341

23~.333 234.33:

1 9 0 . 2 5 7 180.2S" 176.399 175.391

138. 738

BO. 028

I i . 239 0.0

8 (-) 138.73;

60. 028

5 ~] 1 I, 2 3 9 4 (+) O. 0

53 NS

2.90 H

~5.7 NS 2 . 0 6 2 Y


~000

13~C5 EC DECRY I=G/IO0 OECR¥5

13qC5 B- OEC~ I=G+CE/IO0 OECRT$

3000

2000

1000

u~(+) o.o 2 .062 Y

( 369 o.o003 13.{3 )

( q15 2.q8 9.85 ) ~ 3 "

( 658 ?0.1 8.89 ) ~ l *

( 891 ,I,O.Oq5 ~t2.5 } ~ 2 .

0.0

{ 1 ~ ,~0.008 ~lu. I

O+

I / #

tm BR 56

1959. "75

lqOO.~J2

11G'7. ~q

60o,,66

0.0


L~000

134C5 8- DECRY 1348@ (lSO, 160) ADOPTED LEVELS

]3&LR EC D E C R Y 136BA(P,T)

3000

2000

1000

4" 1986.6~

0 +

1643.3~ 3÷

3631.8

35~B

9471

3368.9 3327.2

2- 3271.9

5216

3086.6

3652 .... ~ ~.32_ _

3648

B471 ~3450

33£'9 3327

3272

3216

3087 -- 3061

2634 2 9 ~

2617.6 ~ ' 2 8 8 7 . 0

k---f28St.2 ~'---/2861.2 X - - /2829 .2

2747.99 - - 2747.9 O* 2"/28.2 ~ 2729.2

0696,5 2656.1 \ . J ' 2 6 5 6 , t

2 '598.8 2570.78 2970.8;

2536.86

--'~--~-z~42 0450r-----~--'~ -~'~ O* L~78.05 (0"1 2379.1

0.-~',_/-~.63 ",--/2336 6

2286.0 2288,0 2254.63 R260 2 2 5 4 . 6

2184.6 218~,6 2159,B5 2159.7

2110 2* 2088.23 2088.2 1" 2029 .22 2029.2 ----~-~-2007 ~ 2 0 0 7

4+ 1970 4 ÷ 1959,8!

1760.46

1643 .39

~* 1400.61 4+ 1400.55

2* 1167 .9[ 2* 1167.88

1760 0 ÷ 1760.5

3+ 16q3.3~

[O*~q*] ~400 4* 1400.5~

[2~] 1170 2 ÷ It67.£(

2* 604.60 2 ~ 60~.66 601 2* 600 2 ÷ 60~,66

O* 0 . 0 0 + O.C O÷

13q BRyB 56

o o Jo. o o

5.2 PS

A = 134 Drawing 6, Par t 3 NUCLEAR DATA SHEETS

L~O00

13~LR E C D E C R T I = G + C E / I O 0 D E C R T 5

y P L A C E D T W I C E

3000

2000

1000

2 -

- ' - N

- -x

' N "

2 .

J_.t.* ! I

2 *

, " ' ~ '

~ , ~ , ~ -~ ~ ,~'~'~" ,~,,~

r T

3 6 ~

3~'7t

x 3 ~ E

3 3 6 8 . 9

~ " 0 " O° 0 " 0 " 3216

I I I .~.~ ~ ~.~. ~ - o ~

, , , _ ~ . ~ ~'o" ~ ~ - ~__,-~.~

• i [ = i ~1 r

I

i

i

' !,.I -4

I I;I i I I

i

i ' l ; . [

I I I I i i 1 I I I I [

1 i i i i i i i i i

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i i i

i " I I I

I

I

i ;

i i

i i I i i

z

i

! !

1~ BATs s ~

I

t 13.0

134LA EC DECRY I=G÷CEIIOO DECAYS

* y PLACED TWICE

* ONLY CONVERSION ELECTRONS OBSERVED

2-

-y;-

J h

3271.954/

~15 0

mmm

~',~.,~. ~ ~ ¢ o,~ ~.es ~ , ~ , ~ , ~ ...~,. ,~ ~ ¢,-,~',:,- ~@~.~,~' ~ ? ~ ,=~.~ ~-¢-¢~'o-~- ~ , ~ 2 . . . . , ~T~. ~. ~ , ~ ~. ~r@-~

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~ o~.~.,. ~ . . ~ . ~

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II lil i,.

3086.8

I ~1.2 I 5829. t i

$ I $

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[ L:~J~4.711 2"2BB_ 0

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I I I I l i l I I I I I

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~ 5 4.04~ 7 .5 1

i+ 0.0 6 .67 M

.

r 57 77

40 O. 000~ ) 60 O, 400~ )

144 0.0001 7.4

~ 1 0. 000~ 7m 5 L~2 0.0005 7,2 264 O. 0002"2 7,7

0.00~ 6,7 3)(~S 0,0014 7.2

420 O. 4049 5 .8

47S O. 0004 8.0

605 0.0014 7 .0 631 0.010 8.7

6 ~ 8 ) 775 0.005 7 .3 805 0.016 6 .8 841 0.0017 7.8 054 0.020 O.B 945 0.427 0,7

996 0.014 7.! ) 1036 0.0096 7.3 ) 1083 0.~2 0.4 ) 1112 0,026 5,8 ) IlL:~ 0.14 7.2 ) 1156 0.008 7.S l 1204 0.08 5.5 ) 1228 0.0041 7.8 ) 1 L ~ O O. 00,?.I 5. t ) 1013 0.17 6.3 ) 1:~58 0,25 s . l l 1358 0.016 7.3 )

1404 0,4031 5.1 )

150B ~0.0~ ) 153~ ;~0.48 ,6.0

15~ 0.~ 5.0 1563 ) 16@5 o.oo~s 5 .0

193~ 0.039 6 .3

20~9 0.0076 8 .0 )


!!

r

104 BA ,58 78

4000

3 0 0 0

2 0 0 0

1 0 0 0

A = 134 Drawing 7 NUCLEAR DATA SHEETS

600(

500C

4000

3000

2000

lO0~

17-M(i] ~" II-M 1 3 4 P R EC DECRY

122SN ( 1 6 0 , qNG}

~,- l~'es.

12~

I o *

v ~ v v ~

@,,~'@:,G ,,.

',', . , ~o ~, ,~ .~ ~.

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/ / / ~ , . ~ ~ _ _ I t I I I i i i I ~ l ' ~ i ~ i " " I I 1 I I I ,. I b ~ ~

-~, ~,- - ~ ~ - - ~ - - - r r t ~.- i -~., - I l l - ~ ~-_~

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i i i i i i I t i I i i i I i i i i

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~'~' lssl.S

t i i i

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~ t g . !

#"

@

@

#

~@" u39.1

CE~s

ROOPTED L E V E L S

5".~6. ~

P , t~ . I

3719,~

g . 5 P5

2 5 PS

?2.0 H

3000

2500

2000

1500

I000

500

@÷

6"

4"

2~

0"

NUCLEAR DATA SHEETS

118SN (2ONE. 4NG] AOOPTEO LEVELS l=IO (RELATIVE]

q~

134 N074 50

2294.0

2127.5

1420.C

788.9

294.2

0.0

2294.

2127,~

1420.0

788.g

2g4.Z

O* 0.0

410

8.SM

Drawing 8 A = 134

134 Sb

51 83

NUCLEAR DATA SHEETS

Summary Sheet Summary Sheet 134 Te

52 82

Adopted Level Properties Adopted Level Properties

E(level) T~/2

? 11.0 s 3

? 0.85 s 10

From the /3-decay properties of 134Sb, 72Ke21 determined that two isomers exist for ~34Sb. The energies of these two isomers are not determined.

Reasons for E(level) a J~ Jr_Assignment /'1/2

g.s. 0 + Even-even nucleus 41.8 m 8

1279.17 (2 + ) Systematics

1576.1 ? (4 +) Systemaitcs

1691.3 (6 +) Systematics 164 ns 3

2397.6

The levels at 1279.1, and 1691.3 keV proposed by 72Ke21 from l a4Sb decay are not adopted as definite levels since the transition ordering is based on systematics. There is no experimental evidence to support any particular ordering. The three transitions which are the lowest members of the cascade exhibit a half-life of 164 ns 3.

The transitions on which the level scheme of :34Te is based are observed in /3-decay and in the decay of primary fission fragments.

Nuclear Structure Theory: 65Rh01,71Wi25,73De54,73Vd02

a . .

UncertamOes in level energies are 0.1 to 0.4 keY

218

134 I

53 81

NUCLEAR DATA SHEETS

Summary Sheet Summary Sheet 134 Xe

54 80

E(level) a

g . s .

44.4 79.45

180.89 210.47 316.3 645.50 846.70 923.47

1106.45


Reasons for jTr J~-Assignment TV~

52.6 m 5

1.62 ns 10

3 . 7 m l

0-,1 Log f t 0-,1 Log f t 0-,1 Log f t

The above levels are populated by /3-decay of 134Te, except for the 44.5- and 316.3-keV levels which are observed in the decay of 134mi.

J'~= 4+,3 + have been suggested for the g.s. and 79.45 levels, respectively, by 68Be63. 72Co04 suggest 8 - and 5 + for the 44.4 and 316.3 levels, respectively.

Adopted Gamma-Ray Properties

Transition Rates Partial

E(level) E 7 A 7",/2 v

316.3 271.9 E3 4.6 b m

Weisskopf Estimate

1.7 X 10 -4 m

a u n c e r t a i n t i e s in level energies are 0.1 to 0.5 k e V

bThe b r anch ing ra t io for the 271.93, is a s s u med to be 1

E(level) e J~

g.s. 0 +

847.03 1613.80 1731.12 1919.58 1965.4 2136.57 2271.96 2302.2 2352.93 2408.46 2547.52 2588.44 2653.7 2772.90 2867.3 3083.8 3256.0? 3299.9? 3314.4? 3360.1 3375.3 3476.9? 3493?

Reasons for J"-Assignment, Other Properties

Even-even nucleus, Abundance = 10.5% (72HoWa)

TV2 = 0.290 s 17

These levels are populated by /3-decay of 134I, except for the 1965.4-keV level which is populated by the /%decay of 134mi. The 847-keV level is weakly populated in 134Cs /3-decay.

Nuclear Structure Theory: 74Ha19

Cuncer ta in t i e s in level energies are 0 .03 to 0 .4 keV

219

134 Cs

55 79

NUCLEAR DATA SHEETS

Summary Sheet Summary Sheet 134 Ba

56 78

E(level) a

g.s.

11.239

60.028

138.738

176.399 190.257 234.333 271.346 377.099 451.429 454.086 483.651 701.993 715.812

j~


Reasons for J~-Assignment, Other Properties, Comments

Atomic beam (69FuCo), 4 (+) systematics, Tv2 = 2.062 y 5,

=+2.990, Q= +0.36 (69FuCo) 5(+) [ 1273, is E3, Ty2 = 45.7 ns 12,

t g = +0.665 13

Atomic beam (69FuCo), 1383' is M4, T~A = 2.90 h 1, g = +1.096 (69FuCo)

8 (-)

T~/2 ~ 53 ns

These levels are populated by l aaCs(n,3') reactions. The 11.239- and 138.738-keV levels are observed in the decay of 1 a4mCs.

Adopted Gamma-Ray Properties

Transition Rates Partial b Weisskopf

E(level) E 7 A T,/27 Estimate

138.68 127.42 E3 23.3 h 5.8 X 10 -4 h 138.68 138.68 M4 4 .9×104 h 1.7X l0 s h

aUncertainties in level energies are 1 to 5 eV

bThe percent branching for the 127"y and 1389' are taken as 99.2% and

0.8%, respectively. The relative uncertainty in I(las,y) is large. See

Data Sheet-4 134Cs

E(level)C j~r

g.s. 0 +

604.66 2 + 1167.90 2 + 1400.51 4 + 1643.39 3 + 1760.5 0 + 1969.83 4 + 2007 2029.2 2088.2 2159.7 2184.6 2254.6 2288.0 2334.7 2336.6 2379.1 (0 +) 2442 2464? 2488.6 (0 +) 2536.9 2564.6 2570.8 2599.8 2656.1 2696.5 2729.2 2747.9 2829.2 2851.2 2887.0 2917.6 2934? 3061 3087 3216 3272 3327 3369 3432 3450? 3471 3548 3632? 3652

Reasons for J~-Assignment, Other Properties, Comments

Even-even nucleus; Abundance = 2.4% (72HoWa) 3'7(0), Coul.Ex., Ty~ = 5.2 a ps 77(o) ~3'(0) o(0) 1760 transition is E0 O(0)

Weak 2379 transition is E0

Weak 2488 transition is E0

Levels below 1700 keV are populated by both la4Cs and 134La decay. The 1969.83-keV level is populated by t a*Cs decay while the 1760.5-keV level and levels above 2 MeV are populated by 134La decay.

euneertainties in level energies are 0.02 to 1 keV

dCalculated from B(E2)

220

134 La

57 77

NUCLEAR DATA SHEETS

Summary Sheet Summary Sheet 134 Ce

58 76

E(level) J~

g.s. 1 +


Reason for J'-Assignment Ty2

Log f t 6.67 m 2

No excited levels are known in la4La. ~34Ce decays only to the 134La ground state.

Reasons for J~-Assignment E(level) a J~ Mode of Population T w

g.s. 0 + Even-even nucleus 409.2 fl-decay, (HI,xnT) 965.3 fl-decay

1048.7 E-decay, (HI,xnT) 1382.57 E-decay 1643.0 E-decay 1691.67 ~-decay 1774.8 ~-decay 1812 E-decay 1863.0 E-decay; (HI,xn~) 1903.5 ~-decay 2022.17 ~decay 2027.1 E-decay 2174.2? E-decay 2358.7? E-decay 2361.57 E-decay 2545.2 fl-decay 2811.0 (HI,xnT) 3719.5 (Hl,xn~) 4183.8 (HI#nT) 4908.4 (HI,xnT) 5726.3 (Hl,xnT)

See Drawing 7 populated by (HI,xnT) reactions.

aUncer ta in t i e s in level energies are 0.1 to 1 k e V

72.0 h 5 25 ps 6

4.5 ps 19

for J~-values suggested by 74Del2 for levels

221

134 Pr

59 75

NUCLEAR DATA SHEETS

Summary Sheet Summary Sheet 134 Nd

60 74


Reason for E(level) J~ J~-Assignment TV2

? 2 a Atomic beam (72Ek04) 17 m 2

? ~11 m

Two half-lives are observed in the decay of 134pr. Gamma rays are observed in the decay of 134Nd; however, no excited levels are established (see Data Sheet-1 134Nd).

a j - 2 r e sonance decayed w i t h T V 2 , ~ l g . 5 m. No T ½ ~ " ~ l l m h i g h - s p i n

resonance was observed by 7 2 E k 0 4

Reason for E(level) b J~ J~-Assignment

g.s. 0 + Even-even nucleus

294.2

788.9

1420.0

2127.5

2294.0

8.5 m l

410 /is 30

These levels are observed using the (Hl,xnT) reaction. See Drawing 8 for J~-values suggested by 72Pa26.

b u n c e r t a i n t i e s in level energies are 0.3 to 1 keV

222

134 Sb

51 83

NUCLEAR DATA SHEETS

Data Sheet-1 Data Sheet-1 134 Sb

51 83

Ty 2 11.1 s 8 I 1.3 a 3 10.3 5

A l l . 0 s 3

Q - = 9000 1000 = (8491 300)

7(134 Te)

Internal Conversion Data

11.0-s Level Decay 11.0-s Level Decay continued

YT, w(delay) semi-semi 72Ke21 68De18 68To19 72Ke21

Other measurements: 51Co27,60Pa06,64Be16,71Fo26

scin 72Ke21 E¢1 ~ 6000

E~2 = 6800 300

syst. 73WaGo Deduced by compilers from data of 72Ke21

72Ke21 assumed that the beta group with E~ = 6800 300 populates an excited level at 1691 keV in I34Te.

E v I7(rel.) (+0. I) (-+5%)

115.2 49 297.0 97 706,3 57

1279.1 100

semi 72Ke21

Other measurements: 70Bo53,71Fo26,72Hi15

semi 72Ke21

115.27 K/L = 3.4 5 a K = 0.76 7 a L = 0.22 4

297.03' a K = 0.031 6 706.33` a K = 0.0031 6

(2977)(115,706,12793') (7063')(115,297,12793') (12977)(115,297,7067) (2977)(7063')(~100-ns delay) (i2797)(7063')(~100-ns delay)

The 7063` appeared more strongly in the delayed gates than in the prompt gates. 72Ke2I interpreted this to mean that the 7063` feeds an isomeric level (see Data Sheet-2 134Te).

Other measurements: 71Fo26

Delayed Neutrons

Yield=0.028 4 neutrons/104 235U fissions

72Ke21 made simultaneous measurements of gamma- ray and conversion electron intensities, using the 527-keVM4 transition of l aSXe as a calibration source. 72Ke21 suggested that the 2973' and 7063' are M1, E2, or MI+E2 whiIe the 1153, is E2.

aAlso see 66To02, 67To05, and 68To18 AAdopted value

Assignment

23sU(th n,F), chem, precursor of 134I 2 a s U(th n,F), chem, T,/2 23sU(th n,F), mass separation, Ty=

68To19

68De18 68To19 72Ke21

223

NUCLEAR DATA SHEETS

134Sb Data Sheet-2 Data Sheet-2 134Sb 51 83 51 83

0.85-s Level Decay 134Sb Decay Scheme

/'Y2 0.85 s 10 72Ke21

This half-life was measured by counting beta particles with E0 > 5 MeV and E0 > 6 MeV as a function of time.

/~ E~ = 8400 300 scin 72Ke21

Assignment 72Ke21

2asU(th n,F), mass separation; E~ = 8400 300 is greater t h ~ Q for Z > 52 in A = 134 fission product chain; expected fission yield of 1 a 4 Sn is an order of magnitude less than that of la4Sb.

Miscellaneous

Possible /~s-isomer in ~34Sb 70Gr38

The 134Sb decay scheme proposed by 72Ke21 is shown on Drawing 2. Since the 1157, 2973', and 12917 have essentially the same total intensity and there are no other experimental data indicating their order, their placement in the level scheme was made by a comparison with the systematics of even-even tellurium isotopes and N = 82 nuclei. Since the 7067 appeared more intensely in delayed coincidence gates than in prompt coincidence gates, 72Ke21 proposed that this transition feeds an isomeric level (see Data Sheet-2 '34Te). Absolute transition intensities are calculated on the basis of this decay scheme using the relative photon intensities of 72Ke21 and conversion coefficients estimated from 72Ke21 and 68HaSe, and assuming no beta decay to the l a4Te ground state. The percent p-branching to each excited level is calculated by requiring intensity balance at each level. Log jet values are determined assuming Q-=8491 keV. Absolute photon intensities are essentially equal to Ly(rel.) on Data Sheet-1 134Sb. If it is assumed that the 0.85-s isomer beta decays only to the 134Te ground state with E# = 8400 keV, log f t = 5.3 is obtained for this transition. Since, on the basis of systematics all low-lying levels in la4Sb might be expected to have negative parity, such a beta transition would be at least first forbidden, and the log f t value should be ~>5.9.

Because of the tack of experimental evidence establishing the cascade ordering and the possibility that additional levels are populated, this decay scheme should be regarded as tentative and incomplete. J~-values shown are those proposed by 72Ke21.

224

NUCLEAR DATA SHEETS

134 Data Sheet-1 Data Sheet-I 134 Te Te

52 82 52 82

Ground-State Decay Ground-State Decay continued

T~4 Internal Conversion Data s 68Be63 41.8 m 8 68Be63

Other measurements: 39Ab02,51Pa33,62Fe03

Q - = 1400 100o syst. 73WaGo

3,(134i) 74Me25 E3" a 17(rel.) b

29.55 c 76.23 2 0.93 8 79.45 1 70 1

101.42 3 1.1 2 131.05 20 0.5 1 180.89 3 60 2 183.05 13 2 1 201.24 3 29 1 210.47 2 73 1 259.59 15 1.6 3 277.95 2 71 2 435.06 5 62 3 460.99 3 36 1 464.64 6 17.0 4 565.99 3 63 1 636.26 9 7 1 665.85 d 3.4 712.97 6 13.7 3 742.59 3 49 1 767.20 3 100 2 844.06 6 4.0 17 896.02 9 0.6 2 925.55 8 5.5 6

1027.00 10 1.5 4

These transitions were assigned to 134Te on the basis of

Conversion

Line Ice(tel. )

79.5K 3.97 35 L1 0.49 6 L2 <0.08 L3 <0.09 L 0.61 6

101.4K <0.25 181.1K 0.56 6

L 0.09 4 201.5K 0.12 3 210.8K 0.29 6 278.1K 0.11 4

From ratios deduced from the above conversion electron intensities, the 79.43` can be only MI+E2 or El+M2. The K/L ratio of the 180.93` eliminates all but dipole or quadrupole contributions to the multipolarity.

3'3, semi.semi 74Me25

A summary of the gamma-gamma coincidence results of 74Me25 is presented on the la4Te decay scheme on Drawing 3.

Other measurements: 68Be63

3,ce(t) s.scin

79.5 Level T~ = 1.62 ns 10 (320-5607e)(79.4K)

71Be54

chemistry and half-life by 74Me25. Using mass-separated sources, 71Be54 and 72Ke21 observed all but the 76.233`, 183.053`, 844.063,, 896.023, and 1027.007.

Other measurements: 62Fe03,68Be63,69Bl19, 69Vo 15,71Be54,72Ke21

aFitting uncertainties given; additional uncertainty of 20 eV is to be added in quadrature

bFitting uncertainty #yen; 3% additional uncertainty is to be added in quadrature

181.1 Level T~ < 100 ps (7-Compton)(180.gK)

210.8 Level T, A < 150 ps (7-Compton)(210.5K)

epresence of a 29.553, with a (ee+7) relative intensity of m'0.6 is inferred from 3,3"-coincidence results

dObserved in ~/3"-coincidence results; relative intensity is determined from coincidence results

eThe energy region of the Compton peak of the 767.23"

225

NUCLEAR DATA SHEETS

134Te Data Sheet-2 Data Sheet-2 134Te

52 82 52 82

Ground-State Decay continued 164-ns Metastable-State Decay

Assignment

23sU(th n,F), mass separation, chem 68Be63 2aSU(th n,F), chem, T~/2 74Me25

48Ka09,53Ya01,74Di01 Miscellaneous Measurements

Decay Scheme for 134Te

The X34Te decay scheme shown in Drawing 3 is that proposed by 74Me25. Absolute transition intensities are determined using the relative photon intensities of 74Me25, estimating total conversion coefficients from 68Be63 and 68HaSe, and assuming 100 (3`+ce)-transitions to the t34I ground state. The 79.453` is assumed to be M1. It is assumed that there is no beta decay from the Ia4Te ground state to the 134I ground state since the 134I ground state probably has J = 4 or J = 5 from systematics. The /3-branch to excited levels is determined by requiring an intensity balance at each level. Log f t is calculated using Q : 1400 keV. The large uncertainty in Q from 73WaGe results in large uncertainties in the deduced log f t values, making it impossible to rule out first-forbidden /3-decay to the 846.70-, 923.47-, and l106.45-keV levels. The absolute photon intensity is given by I~,(%)= (0.304 20)IT(rel. ). J~-values shown are those suggested by 68Be63 and are not adopted values.

The decay of a 164-ns metastable state is observed in primary fission fragments following fission of 2 s 2 Cf and 23 s U.

E.~ T,/2(70Jo20 a ) T1/2 (74C102 h )

115 162 ns 12 163 ns 4 297 162 ns 12 167 ns 5

1280 164 ns 15 154 ns 20

TV~ = 164 ns 3 Weighted average

The gamma-ray half-lives were measured by (fragment)(3`)(O coincidences.

semi 74C102 b semi 70Jo20

Photons per Photons per E,y 2s2Cf Fission E,y ~s2Cf Fission

3,(l 34 Te)

115.2 I 0.0060 3 115.0 2 0.0061 4 297.0 1 0.0102 5 296.9 2 0.0103 7

1279.6 1 0.0101 16 1279.8 2 0.0126 11

Other measurements: 70Ch33,70Gr38,70Wd6, 72Ho08,73Kh05

Coincidence Measurements

70Ch33, 70Gr38, 70Jo20, 70Wi16, 72Ho08, 73Kh05, and 74C102 b each used one or more of the following techniques: (fragment)(fragment)(X), (fragment)(fragment)(7), (fragment)(fragment)(ce), (fragment)(fragment)(X)(3`), and (fragment)(3`)(7).

Assignment 2 s ~ CffF) (fragment)(fragment)(X)(3`)

and (fragment)(7)(3`)

aUncertainty estimated to be roughly the same percent uncertainty as the

intensity uncertainty

bsee also 72Cl15

Decay Scheme for the 164-ns Metastable State

74C102 h

The decay scheme shown on Drawing 2 is proposed by 70Wi16 and others on the basis of systematics. They propose that a level at 1691.8 keV has T1/~ = 164 ns. This decay scheme should be regarded as tentative.

226

NUCLEAR DATA SHEETS

134 Data Sheet-1 Data Sheet-1 I

53 81

134 I

53 81


rv2

fl- E#

1050 70 1250 60 1490 60 1680 60 2210 80 2410 60

Q- = 4150 60

~(13 4 Xe)

E~,

135.399 22 139.030 30

x151.98a 15 x162.48 7

188.47 4 217.0 2 235.471 26

x262.6 a 3 278.80 15 319.81 6 351.08 10 405.451 20 411.00 8 433.345 30 458.92 6

x465.50a 10

488.88 4 514.400 30 540.825 25 565..52 4 570.75 15 595.362 20

50.8 m 14 49Le19 52.5 5 53Pa25 54.0 11 57Aa04 52.8 3 61Jo08 52.0 2 65An05 53.2 2 71Ac01

A52.6 m 5 Unweighted average

b(rel.)

3.94 23 0.72 5 0 . I l i 12 0.27 3 0.73 4 0.26 3 2.08 16

very weak 0.137 15 0.54 5 0.52 6 7.7 4 0.64 6 4.39 25 1.36 9 0.38 4 1.48 9 2.45 14 8.2 5 0.92 6 0.22 3

11.9 6

3'( 134Xe) continued

E~ Iv(rel.)

1103.18 12 0.76 6 1136.160 35 10.2 5 1159.10 8 0.37 3

Xl164.0a 3 0.14 3

semi 73Ge02

Ev Ix(re/.)

1629.24 8 1644.25 7

x 1655.19 10 1741.49 5

0.27 4 0.42 5 0.24 3 2.8 2

Other measurements: 39Ab02,55Wa35

scin 61Jo08

Other measurements: 54Mc40,59Ho97

Input=Output 73WaGo

x 1183.2 a 5 0.06 X 1190.03 8 0.37 x 1225.5 a 3 0.07 x 1239.0 a 3 0.22 X 1243.8 a 3 0.08 X 1269.49 5 0.59 x 1322.4 3 0.11 x 1336.0 2 0.15

1352.62 8 0.47 x1395 a 1 0.08 x 1407.4 a 2 0.10 x 1414.3 a 5 0.23 x 1428.2 3 0.18 x 1431.35 a 25 0.18

1455.24 5 2.40 1470.00 7 0.81

X 1505.5 a 4 0.12 x 1541.51 7 0.53

1613.800 43 4.57

1 1806.839 40 3 x1868.5 a 2 2 x1893.2 a 3 6 1925.88 10 2 x1947.3 a 3 4 2020.6 3 4 x2159.9 3 3 x2236.7a 5 4 x,2262.5 3 2 x2312.4 2 2 2409.0 3 6 2452.9 3 4 2467.4 3 4 2513.3 3 15 2629.9 3 5 2646 c 2 4 x2699.sa 5 4 x2840a 4 25

5.95 35 0.07 2 0.06 1 0.19 2 0.10 2 0.18 2 0.22 3 0.056 I5 0.10 2 0.25 3 0.079 12 0.067 10 0.16 2 0.073 9 0.070 8

~0.02 0.034 8 0.02 1

semi 73Ge02

E v 17(rel.)

621.790 25 11.1 6 627.960 30 2.48 14 677.338 30 8.9 5

x706.65 a 10 0.87 6 730.74 4 2.00 12 739.18 8 0.80 8 766.675 35 4.30 28 816.38 7 0.55 5 847.025 25 100 857.285 30 7.3 2

X864.0a 3 0.20 3 884.090 25 68.4 10

X922.6 a 3 0.15 3 947.86 4 4.23 20 966.90 5 0.37 4 974.670 35 4.88 35

1040.25 10 2.0 2 x1052.2 a 3 0.07 2 x1058.8 a 3 0.10 3

1072.547 b 30 16.0 8 x1087.0 a 2 0.09 2 Xl100.07 12 0.72 6

continued in next column

No experimental details were given by 73Ge02. The resuits of 69Wi16, using chemically separated sources, and 71Ac01, using mass-separated sources, are in generally good agreement with 73Ge02 on the gamma rays observed. 73Ge02 observed 25 weak transitions not seen by 69Wi16 or 71Ac01. 73Ge02 indicated the assignment was uncertain for these transitions. The relative intensities of 73Ge02, 71Ac01, and 69Wi16 are in good agreement below Ex = 1000. For some transitions with Iv(rel.)> 1, 71Ac01 and 69Wi16 report intensities which differ by up to 35%. The intensities of 73Ge02 for these transitions generally fall between the values of 69Wi16 and 7 l Ac01.

Other measurements: 54Mc40,59Ho97,61Jo08,68Be63, 69Ta 10,69Vo 15,69Wi 16,70Er 11,71Ac01

aAssignment uncertain. These weak transitions were not reported by

69Wi16 or 71AcOl

bplaeed twice in decay scheme by 69Wi16 on the basis of T3,-coincidence

data

CFrom 69Wii 6

AAdopted value

XNot shown on decay scheme

227

NUCLEAR DATA SHEETS

1341 Data Sheet-2 Data Sheet-2 53 81

134 I

53 81

Ground-State Decay continued Ground-State Decay continued

71Ac01 Miscellaneous Internal Conversion Data semi

E~ a K K/(L+-.-) A

135.4 0.26 5 M l(+E2) 139.3 ~<1 E2,M1 ,El 188.3 0.13 5 M1-E2 235.5 0.07 1 6.1 7 MI(+E2) 405.5 0.011 2 E2 433.4 0.015 3 MI(+E2) 541.1 0.0060 8 E2(+M 1) 595.5 0.0070 8 M1 622.0 0.0052 8 M1-E2 628.4 0 .0025 19 M1-E2 677.6 ~<0.0065 M1,E2,E1 847.2 0.0018 3 7.5 6 E2 884.3 0.0019 4 E2(+M1)

1072.9 ~<0.0018 M 1 ,E2,E 1

/3-strength function

A possible microsecond isomer in 134I

s 2 Cf(fission 134 I

(fr agment)(fr agment)(7)(X-ray) E. r = 566.6 keV

Yield of 134I in fission

Decay Scheme for 134I

71Ac01 used 13SXe, 13si, t39Ba, 137Cs, ~°3Hg, and 2°7Bi

to calibrate the relative efficiency of their conversion electron detector. 71Ac01 did not indicate the method used to normalize the conversion coefficients given for 134I. The multipolarities are those suggested by 71Ac01.

~7 and 3'p See 54Mc40,59Ho97,61Jo08

See Drawing 4 for a summary of 73'-coincidence results obtained by 69Wi16 using semi.semi techniques. The following reported coincidences are inconsistent with the decay scheme proposed by 69Wi16.

(1397"/)(1367), (2353,)(1367), (5413')(7663'), (5653')(4057), (6773')(8573'), (7663')(5413'), (1101-11027)(11377)

Other measurements: 59Ho97,61Jo08,69Ta10

73'(0) See 69Ta10,72Be90

73Jo02

70Gr38

72Ho08

See 70Qa01,73Ra08,74Di01

The 134I decay scheme proposed by 69Wi16 is shown on Drawing 4. Gamma-ray energies and intensities are taken from 73Ge02. Level energies are determined by the compilers using the gamma-ray energies of 73Ge02. Conversion coefficients are estimated from aK-data of 71Ac01 and the theoretical values of 68HaSe. Absolute transition intensity normalization is obtained by assuming I00 (7+ce)-transitions to the 134Xe ground state. The ~-decay branch to the 134Xe ground state is assumed to be zero. The j3-decay branch to each excited level is calculated by requiring an intensity balance at the level. Log f t is calculated assuming Q = 4150 keV. Absolute photon intensities are given by I,r(% ) = (0.954 3)I,~(rel.) if Lr(rel. ) = 100 for the 847.033,. The J~-values shown are those suggested by 69Wi16 and 71AcO1.

228

134 I

53 81

Data Sheet-3

NUCLEAR DATA SHEETS

Data Sheet-3 134 I

53 81

3.7-m Metastable-State Decay 3.7-m Metastable-State Decay continued

T~ 3'3' 3.80 m 10 70Ca16 3.56 3 71Ac01 3.8 2 72Co04 3.8 1 74Di03

A3.7 m 1 Weighted average

See also 70Erl 1

3'(1 a 4 I) semi 72Co04

Ea, I3,(rel.)

44.4 2 13 1 271.9 3 100 316.3 10 < 0.6

Other measurements: 70Ca16,70Er11,71Ac01

3'(134 Xe) semi 72Co04 Ea, = 234.3 5 Ia,(rel.) = 2 a 1 Ea, = 847 b

See also Data Sheet-1 134Xe


2723' a g = 0.20 3 semi 71Ac02 = 0.191 M2 Theory 68HaSe = 0.164 E3 Theory 68HaSe

K/L = 2.6 3 semi 71Ac02 = 6.55 M2 Theory 68HaSe = 3.15 E3 Theory 68HaSe

~3̀ (271.53`)(no /3)

/33'-anticoincidence 44.43`, 271.9% and 234.37 were evident in the anticoincidence spectrum. As 134i decayed away, the peak at 234 keV shifted to 235 keV. (A 235.33` results from la4gI decay).

scin.semi 70Ca16

scin-semi 72Co04

3'3'(0

(iodine X-rays, 44.43')(271.93,) (iodine X-rays)(271.93`) (847,8857)(no 271.93')

44.4-keV Level / ',/2<10 ns

Assignment

235 U(n,F) chem., T w of iodine X-rays, growth of 8473' of 134Xe, 2347 has same energy as an isomeric transition in 134Xe

2 a s U(n,F) mass separation,

E L-E K = 28.4 2

Miscellaneous Fission yield: O'rn/Og = 1.4 7

scin-semi 72Co04 scin.semi 70Ca16 scin.semi 70Ca 16

See also 70Erl I

72Co04

aRelative to ~(rel,) 100 for the 271.93, bGrowth of the 8473, of 134I was observed, consistent with feeding from

the 3.8-rn isomer. No gamma rays other than the 2343, were observed in 134Xe with a pure 3.8-rn half-life

AAdopted value

72Co04

71Ac01

72Co04

Decay Scheme for 134mi

Shown on Drawing 4 is the 134rnI decay scheme proposed by 72Co04. Absolute transition intensities are deduced using the relative photon intensities of 72Co04 and conversion coefficients estimated from 68HaSe, and assuming 100 (7+ce+/3)-decays from the isomeric level in 134I. Log f t for the /?-branch from the isomeric level is calculated assuming Q = 2500 keV. Absolute photon intensity is given by I7(% ) = (0.79 3)I7(rel. ) if I7(rel. ) = 100 for the 271.93,. Jr-values ale those suggested by 72Co04 and are not adopted values.

229

134 Xe

54 80

NUCLEAR DATA SHEETS

Data Sheet Data Sheet 134 Xe

54 80

0.290-s Metastable-State Decay Reaction Data

T½ 0.290 s 17 68Wi27

7(1 s 4 Xe) semi 68Wi27 E~ IT(rel. )

232.9 15 68.2 80 845.9 10 100 879.9 19 94.4 63


232.97 K/(L+M+.-.) = 1.83 32 semi 68Wi27 K/(L+M) = 2.05 E3 Theory 68HaSe

Assignment

134Xe(n,n')134mxe using natural and enriched targets. The 8467 and 8803' correspond to transitions from x 341 /3-decay

68Wi27

See also Data Sheet-3 1341

Miscellaneous

Relative yield of xenon isotopes in fission 70Pc08 of natural uranium by 14.7-MeV neutrons.

Relative yield of xenon isotopes in 72Pe25 239 Pu(n,F) and 233 U(n,F)

Relative yield of xenon isotopes in 72Pe17 237Np(n,F) and 238Np(n,F)

Level Scheme from 134mxe Decay

The 134Xe level scheme deduced from the decay of 134mXe by 68Wi27 is shown on Drawing 4. The J"-values are those suggested by 68Wi27 and are not adopted values.

Coulomb Excitation

134Xe(a,a, ) E = 6.45 MeV

No gamma rays were observed which were attributed to 134Xe.

58Pi05

230

NUCLEAR DATA SHEETS

134 Data Sheet-1 Data Sheet-1 134 Cs Cs

55 79 55 79


T~/z 3,(] 34Xe) E3" = 847, I3"(rel.) = 0.0003 b 1 semi 74Va21 2.058 y 12 72La14 A2.062 y 5 73Di01

73Di01 determined the ]34Cs half-life at the 99% confidence level using mass spectrometry methods.

Other measurements: 45S102,50Gl19,57Ge07,57Me47,58Ba09, 58Ed 17,60Ea02,6 lWy01,63Dil 2,65Ft02

~ - s 68Hs01 E¢~ I¢~(%)

89 2 25 2 415 a 3.0 5 658.0 4 70 2 891 a 0.045 15

1454 a 0.008 4

The 4 t5 - and 658.0-keV beta groups have an essentially statistical shape.

68Hs01

3,(134Ba)

semi 74Va21 semi 73St14

E3" IT(absolute ) I3"(rel.)

242.89 5 0.0210 8 0.022 2 326.45 10 0.0144 6 0.014 2 475.35 5 1.46 4 1.50 3 563.26 5 8.38 5 8.47 17 569.29 3 15.43 11 15.36 31 604.66 2 97.6 3 98.2 10 795.76 2 85.4 4 84.9 22 801.84 3 8.73 4 8.61 22

1038.50 5 1.00 1 1.01 2 1167.86 6 1.80 3 1.84 4 1365.13 10 3.04 4 3.11 8

Gamma-ray intensity limits:

Other measurements: 45S102,47E102,49Me36,50G119,51Pe03, 52Gr20,53Co 13,54Ba88,55Az54,55Be98,55Fo43, 55Ke04,56Wo09,57Au75,57Pe20,59Fr56,60Tr02,

60Ya03,63Da13,63Tr05,63Val 3,64Va06

See Drawing 6 for /3--energies and intensities deduced from the proposed decay scheme.

Q- = 2058.5 4 73WaGo

I3"(795)/I3"(232) > 170,000 c semi 73St14 > 427,000 semi 74Va21

Other measurements: 45St02,47E102,49F105,50G119,51Pe03, 54Ba88,54Jo 18,54Ve09,55Be98,55Fo43,55Ke04,56Jo24, 57Fi50,57Ma02,59Dz98,59Fr56,59Gi49,60Tr02,63Ha38, 63It01,63Se09,63Tr05,63Val 3,64Ew04,64VaO6,65Br20, 65Hu07,65SiI7,66Ba57,66He 11,67Le 18,67Ra10,67We07, 68Ab01,68Bo55,68Na 11,69Si 16,70Ho06,70Va41,71Su02


fl+ and e

(e +/if)//3- = (4.5 5) X 10 -7 68A115

= (3 1) X 10 .6 Deduced by compilers from data of 74Va21

The result of 68Al15 was determined by comparing the l a4Xe excess obtained by mass spectrometry techniques with the 134Cs activity. The branching ratio of (3 1)X 10 .6 was determined from the gamma-ray intensity data of 74Va21 assuming no decay to the 134Xe ground state.

semi 68Nall s 65Br20

E3" IK(rel. ) AIK(rel. ) a K

475 3.2 6 2.98 13 0.0100 6 563 11.1 11 9.8 4 0.0057 3 569 23.6 24 24.6 11 0.0078 4 604 100 10 100 2 0.00503 795 51 5 45.7 17 0.00262 12 801 4.4 9 4.8 3 0.00270 18

1038 0.35 4 0.35 2 0.00172 11 1167 0.43 4 0.43 2 0.00117 7 1364 0.56 6 0.51 2 0.00082 4

Other measurements: 51Mi16,54Ba88,54Ja24, 55Be98,55Ke04

Q+= 1216 13 73WaGo

aK is determined by the compilers by using I3"(rel.) of 74Va21 and IK(rel. ) of 65Br20, and normalizing to aK(6047) = 0.00503, the theoretical value from 68HaSe for an E2 transition.

aDeduced by 68Hs01 using Eft = 658.0 keV and the decay scheme of

67Ra10

bRelative to 1(604.663') = 97.6

CTwo-standard deviation limit

AAdopted value

231

134 Cs

55 79

NUCLEAR DATA SHEETS

Data Sheet-2 Data Sheet-2 134 Cs

55 79


Internal Conversion Data continued

E v Measurement

563 a K = 0 .0055 a 1 0

569 a K = 0.0085 a 13

6O5

796

63Ha38

63Ha38

K/L=6.4 8 s 53Co13 =6.3 6 s 54Ve09 =7.7 6 s 55Ke04 =7.12 36 s 66Zg01

K/L=7.0 3 Weighted mean =6.97 E2 Theory 68HaSe

K/(L+M)= 5.2 s 63Tr05 =5.25 50 s 64Va06

K/(M+.-.)=26.3 24 s 66Zg01 M/L=0.254 25 s 68Bo01 (N+ O+...)/M = 0.24 b s 68Bo01 aK =0.00465 a 30 63Ha38

=0.0051 e 4 63Tr05 =0.00485 a 20 65Br20 =0.00503 a 20 66Zg01 =0.00507 d 50 68Nal i

eK=0.00492 12 Weighted mean =0.00503 E2 Theory 68HaSe

K/L=7.3 8 s 53Co13 = 8.0 8 s 54Ve09 =8.0 8 s 55Ke04

1038 K/(L+M) = 5.1 s 63Tr05 = 10 3 s 64Va06

1167 K/(L+M) = 6.08 s 63Tr05 = 6 2 s 64Va06

Transition Multipolarities and Mixing Ratios

These transition multipolarities and mixing ratios have been deduced by the compilers from internal conversion data and 77(0) data. See Data Sheets-l,3 134Cs.

E3" A e 181 e 8 f

475 E2+(<20%)M1 >2.0 >+19 or < -1 6 563 E2 +7.5 9 569 Ml+(20%218)E2 0.5 3 -0.29 2 605 E2 795 E2 801 E2+(<20%)M 1 0.1 e-4 +0.010 4

1038 M1+(59% 20)E2 1.227 -1.8 2 1168 E2 1365 E2

1364 K/(L+M)=6.95 s 63Tr05 =8 2 s 64Va06

~3' and ~"/7

Other measurements: 50Wa59,51Pe03,53Co13,53Ma14,54Ba88, 54Ve09,55Be98,55 Fo43,55Ke04,56Of03, 57Au75,60Ya03,62Ha10,63It01,63Tr05,

64Va06,65Br20,68Ab01,68Nai 1

aThe internal-external conversion method used

bNo uncertainty given

COriginal result of 63Tr05 was aK(6053"1=0.0055 4 relative to aK=O.O096

for the 6623' of 13"/Cs. The result is renormalized to aK=0.00894 1 0

for the 6623" of 137Cs by the compilers

dRelative to a K = 0.00894 10 for the 6623" of 137Cs

eDeduced from a K

fDeduced form 3"3"(0) data

T7

~77

&(t), 7v(t)

~7(0), ~77(0)

See 49Me36,50Ho94,55Be98,55Ke04,57Fi50, 58AI10,63Dal 3,63Tr05,72Da36

See also /3~,(0), /377(0 ) below, and ~3' Circular Polarization Correlation on the following page, Data Sheet-3 1S4Cs"

See Drawing 6 for a partial summary of 77- coincidence results obtained by 67Ra10 and 68Ab01 using scin.semi techniques.,,

Other measurements: 54Su44,55Be98,56Ch71,57Fi50, 58Al10,63Se09,63Tr05,71 Ca48,71Su02

See also E77 and 77(0 below, and 77(0), 3'77(0) on the following page, Data Sheet-3 l S4Cs.

See 54Lu22,59Gi49,60Tr02,63Sc31, 65Hu07,69Su 10,71Su02

Ty~(1401 level) ~< 30 ps 70Ho06

Other measurements: 49Be39,50De06

See 50Be60,50St27,51St59,62Wy03,65Gr 13, 67Wi23,68Sa01,69Su09,72Da36

232

NUCLEAR DATA SHEETS

134 Data Sheet-3 Data Sheet-3 Cs

55 79

134 Cs

55 79


3`3`(0), 3`3`7(0) See 52K139,55Ev08,55K129,55St62,63Co36, 630103,63MuO3,63Se09,67Ral 8,69Tal 2, 69Su 10,70HoO6,70Pa28,70Si04,71Su02, 72Be45,73Gal 0

Spin Sequences and Mixing Ratios from 73`(0) Data

The following level spin sequences and transition mixing ratios are determined from the 73`(0) data. The experimental results of 72Be45, obtained using semi.semi techniques, are used where available. The internal conversion data are used to limit the range of level spins considered and to choose between alternative mixing ratios. See Data Sheets-l,2 ~34Cs.

5633,-6057 A2 =+0.025 11 A4 =+0.285 35 Consistent with 2(1,2)2(2)0 and aK(5633`)=0.0057 3

if 6(5633`)= 7.5 9; aK(6057) is consistent with a pure E2 transition

Not consistent with J = 0 or J =1 for the 605 or 1168 keV levels

7957-6053' A2=+0.102 9 A4=+0.008 16 Consistent with 4(2)2(2)0 with the 7953` being

a pure E2 transition Not consistent with 3(1,2)2(2)0 and

aK(7957)= 0.00262 12

4753`-11683` A2 =-0.200 45 A4 =-0.07 5 Consistent with 3(1,2)2(2)0 and %:(4753`)=0.0100 6

if 6 > 19 or 6 < ( - 1 6 ) Not consistent with 4(2,3)2(2)0 and

aK(4753`) = 0.0100 6

13653'-6053` A2 =+0.108 15 A4 =+0.001 20 Consistent with 4(2)2(2)0; aK(13653`)= 0.0082 4 is

consistent with a pure E2 13653` Not consistent with 3(1,2)2(2)0 and

aK(13657) = 0.00082 4

5693`-7953` A~ =+0.091 6 A 4 =+0.011 12 Consistent with 4(1,2)4(2)2 and aK(5693`)=0.0078 4

if 6 = 0.29 2

8013'-11683' a A2=+0.1081 25 A4=+0.0091 40 Consistent with 4(2,3)2(2)0 and aK(8013`) =0.00270 18

if 6 =0.010 4

10383'-6057 A~ =+0.157 20 A4 =-0.034 40 Consistent with 3(1,2)2(2)0 and aK(10387)=0.00172 11

if 8 =--1.8 2

ausing data from 71Su02

~3 ̀ Circular Polarization Correlation

Cascade: 4+(658~-)4+(7963`)2+(6053`)0 +

A = -0.074 22

3`3`(50

77~,H)

= -0.077 13 =-0.069 7 = -0.072 18 = -0.0702 24

62Ma29 65Ti04 67Be20 67Bh04 70Pi03

Other measurements: 61BI12,63Da13

See 50Wil 0,50Me 18,52KI39,52Ro45

70Be50

5707-7977, 5707-7977-6057, and 7977-6057 cascades

wz = 0.05 3 with H=41.4 kG

Decay Scheme for l a4Cs

The 134Cs decay scheme proposed by 74Va21 is shown on Drawing 6. Absolute transition intensities are deduced by 74Va21 assuming 100 (7+ce)-transitions to the ~a4Xe and l a4Ba ground states. The ground-state jSobranches were assumed to be zero. Total conversion coefficients were estimated using the aK-value shown on Data Sheet-1 lS4Cs and by 68HaSe. The 13-branch to each excited level is determined by requiring an intensity balance at the level. Absolute photon intensities are the intensities reported by 74Va21. Jr-values shown are adopted values.

233

134 Cs

55 79

NUCLEAR DATA SHEETS

Data Sheet-4 Data Sheet-4 134 Cs

55 79

2.9-t l Metas table-Sta te Decay 2 .9 -h Metastable-State Decay cont inued

T1/2 Internal Conversion Data

3'( 3 ~ C s)

2.91 h 1 60Ba49 2 .895 10 a 61Ke03

2.93 5 64Fr02 2.91 2 64Wa10 2.90 1 6 8 R e 0 4

2.91 5 70Qa02 A 2 . 9 0 h i Weighted mean

Other measurements : 40KaO7,45S102

I3~<0.02% for 3 - - d e c a y of t 3 4 m C s s 64Fr02

Other measurements : 55Ke04

E3, i = 10.5 7 I 3 , x / X K ~ 0 . 0 2 3' pc 54Su44 = 11.23 10 7 semi 69Ly08

= 11.2 1 7 semi 7 1 D r l 0

= 11.26 2 s 72P107

E3,

11

127

138

Measurement

aT ~ 200 d 54Su44 = 105 e 7 69Ly08

aLM = 80 M1 Theory 68HaSe = 2.63 × 104 E2 Theory 68HaSe

K:L:(M+N) = 9 2 : 1 0 0 : 2 7 f s 64Fr02 K : L : M = 68 :100 2 :23 .7g 4 s 73A132 K:L:M = 8 6 : 1 0 0 : 2 2 E3 Theory 68HaSe L1/L2 = 0 .168 2 72P107

= 0 ,154 E3 Theory 68HaSe

La/L2 = 0 .96 2 s 72P107 = 0 ,942 E3 Theory 68HaSe

a K = 2.6 3 XK/3" sein 54Su44 = 2.8 3 XK/3" scin 60Es01

= 2.60 4 XK/3" scin 61Ke04 = 2.55 40 XK/3" scin 64Fr02

= 2.78 E3 Theory 68HaSe

K / L = 2.0 13 s 54Su44 K:L:(M+N) = 206 :100 :31 f s 6 4 F r 0 2

K:L:M = 163 :100 :24 M4 Theory 68HaSe

E3` 2 = 127.1 5 ce s 54Su44

= 127.3 3 ce s 6 4 F r 0 2

= 127.37 20 3' semi 6 9 L y 0 8 = 127.42 3 ce s 72P107

I3, 2 : 7.0 2 d i s /127@ 4Tree-3` coin 61Ke04

E3, 3 = 137.4 5 I3, 3 = 0.8% e 5 ce s 54Su44 = 138.4 4 ce s 64Fr02 = 138.68 3 ce s 72P107

Other measurements : 5 0 C a l 0

aThe uncertainty reported by 61Ke03 has been doubled by the compilers bDisintegrations of 134mc8 per 1273, emitted

CDeduced by a comparison of 138K, 138L, and 127M conversion electrons

dEstimated using the Ill3`/X K ratio e69Ly08 deduced aT(ll3`) from an estimate of the ratio of the intensities

of the 113` and 1273` and dis]1273`=7.0 2 (see Data Sheet-4 134Cs) fUncertainties not given gRenormalized by the compilers h95% confidence level uncertainty AAdopted value

Other measurements : 50Ca10 ,51Su73 ,52Mi38 ,70Tu08

73' and ce3' (113')(1277) 54Su44 (11L)(1273') 54Su44

3'7(t), cece(t)

11.2-keV Level

7'1/2 = 37.9 ns 14 61Bl13

= 4 7 . 8 7 (1273')(l13',XL)(t) 69Ly08 = 45.7 12 70Bl16 = 47 1 7 1 D r l 0

= A45.7 12 h 72Tu05

3'3'(0 ,H,t)

11 .2-keV Level g = +0.665 13 7 1 D r l 0

(H = 9.9 kG and 11.0 kg, cot not given)

Assignment t 3aCs(n,7)l a4Cs ' chem 40Ka07 13aCs(d,p)134Cs ' c h e m 40Ka07

234

NUCLEAR DATA SHEETS

134 Cs Data Sheet-5 Data Sheet-5 55 79

134 Cs

55 79

Reaction Data Reaction Data continued

33Cs(n) See 73Mu14 for recommended resonance parameters

133Cs(t h n,7)

I7/100 Captures E 7 ±<30%

s60.028 1 10.35 74.050 2 3.19 87.249 2 1.36 93.185 4 0.66

113.761 6 5.13 114.319 5 0.30

s116.371 2 16.84 116.610 1 1.37 117.172 20 0.27 118.363 1 1.22 120.585 1 2.48

s127.499 2 1.13 127.707 10 0.08

s130.228 2 6.78 132.754 10 0.09 133.584 3 0.12 137.754 4 0.09

s142.766 2 0.32 145.848 2 0.08 149.524 13 0.20 150.785 10 0.08 158.260 4 0.22

s174.304 2 1.58 s176.397 2 9.79 s179.018 2 0.10 s180.081 6 0.36 s186.836 5 1.08

189.840 I0 0.27 s190.255 15 0.09

193.711 25 0.11 194.704 26 0.16 197.780 15 0.16 198.296 4 4.05 200.845 9 0.45 205.607 3 5.93 207.672 8 0.24 209.552 12 0.29

s211.316 8 0.80 s218.342 9 1.20 s219.751 10 1.40 s232.170 27 0.47 s234.334 2 3.87

240.665 40 0.12 245.862 10 2.44 251.395 20 0.16 253.640 17 0.06 254.753 16 0.19 256.632 12 0.76

s261.180 25 1.41

E7

cryst 73A132

I7/100 Captures +<30%

s263.848 18 0.28 269.000 8 0.78

s271.345 20 0.49 272.220 30 0.24 2772646 22 0.25 279.668 60 0.24 284.996 20 0.18 289.890 22 0.05 290.662 55 0.08 293.286 5 0.54 295.431 9 0.63 302.467 15 0.28 303.162 10 0.35 305.071 28 0.23

s307.255 4 4.82 309.787 16 0.74 315.405 20 0.16 316.373 65 0.08

s317.074 18 0.40 322.670 50 0.10 329.046 10 0.39 336.140 50 0.14 338.034 20 0.11 345.343 20 0.17 347.154 20 0.19 356.296 16 1.35 365.954 35 0.35 367.880 40 0.46 371.802 50 0.39 377.323 27 0.80 381.496 50 0.14 384.178 55 0.16 386.914 50 0.44

s391.472 60 0.19 s394.015 50 0.15

417.301 65 0.28 429.780 120 0.26 438.985 100 0.34

s442.855 45 0.74 s444.464 40 0.33

450.309 15 2.30 s451.440 100 0.42 s454.086 40 0.22

461.128 25 0.22 464.462 75 0.24 519.29 20 0.60

s525.70 10 0.60 529.57 12 0.80

s539.413 55 0.69

Other measurements: 60Es01,60Me05,66Ar09, 66Be20,69Ko23,71Ro 10

1 3 3 C s ( t h n,7) c o n t i n u e d


Conversion Line Ice a A c

60.028K 34.7 3.37 20 MI L 4.54 0.44 5 M 1.24 0. t21 16

74.050K 5.5 1.74 13 M1 87.249K 1.50 1.11 9 M1

113.761K ~ 2.73 0.50 4 MI 114.319K J

116.371K ~ 2.70 0.120 d 3 E1 116.610K 1 120.585K 0.88 0.36 3 M1 127.499K 3.11 2.75 e E3

L 3.74 3.30 9 M 0.88 0.76 5

130.228K 2.51 0.37 1 M l L 0.58 0.096 f 6

176.397K 0.22 0.022 5 E1 197.780K

t 0.28 0.067 15 M1,E2 198.296K 205.607K 0.58 0.098 14 MI,E2

77

Conversion Coefficient b

s 73A132

Other measurements: 60Es01

semi.semi 73AI32

Transitions connected by hyphens indicate that they were unresolved.

(116.3-116.6-t18.37)(60.0,120.5,218.3,232.1, 302.4-302.8-303.1,307.27)

(130.2-132.77)(60.0,130.2,186.8,261.I,263.87) (174.3-176.37g)(142.7,219.7,307.27) (174.3-176.3@)(116.3-!16.6,130.2i,234.3i,245.8,

307.27)

continued on next page

aNormalized to IK(127.ST) = 3.11 so aK(127.57) = 2.75

bDeduced from Ice/17 and normalized to aK(127.57 ) = 2.75

esuggested by 73A132

dThe compilers calculate 0.148 from data given

eTheoretical value for an E3 transition

fThe compilers calculate 0.086 for the data given

gRelative contributions of the 174.3T and 176.33, are 40 and 100,

respectively. Apparently only coincidences with the 174.33, are listed

except for the 307.23'

hRelative contributions of the 174.33, and 176.33' are 2 and 100,

respectively. Apparently only coincidences vwth the 176.37 are listed

llnconsistent with level scheme proposed by 73A132

SShown on level scheme

235

NUCLEAR DATA SHEETS

134Cs Data Sheet-6 Data Sheet-6 134Cs 55 79 55 79

Reaction Data continued Reaction Data continued

133Cs(th n,7) continued semi.semi 73A132

77 continued

(197.7-198.27)(116.3-116.6,120.5,245.8,295.4,309.77) (205.6-207.67)(116.3-116.6,120.5,269.0,295.4,

302.4-302.8-303.1,307.27) (21g.3-219.77)(113.7,116.3-116.6,130.2,174.3,176.3,

234.3,307.27) (232.1-234.37a)(116.3-116.6,279.6,307.27) (232.1-234.37b)(116.3-116.6,142.7,209.5,219.7,

277.67) (245.87)(116.3-116.6,120.5,176.3,198.2,263.87) (307.2-309.77)(116.3-116.6,176.3,197.7,200.8,

205.6,218.31232.17)

7~(t)

Other measurements: 60Es01,60MeO5,66Ar09,68Be52,71Ro10

Ty2(ns)

E3" 63Be51 68Be52 69Ko23 c 71Ro 10 d

30-50 8.0 15 60 57 7 <5

116 ] 49 3 15 3 ] 53.8 118 ) 57 7 55 5 ~ and 120 <3 13.3 130 <3 176 57 7 49 3 38 5 ] 51.8 186 <2 J

133 Cs(th n,7) continued

7(134 Cs) E2. > 200 keV semi 70Or05

70Or05 reported 129 gammas between 200 and 6700 keV. Only those placed on the level scheme are listed here

E3" I3"/100 Captures

6175.0 10 0.73 6188.3 10 0.43 6439.5 10 0.26 .6715.6 10 0.18

Other measurements: 59Kn63,60Es01,60Me05, 66Ar09,66Be20

69Ko23 used (>2000~)(7)(t) delayed coincidences. 63Be51 observed delayed coincidences between high- and low- energy photons. The methods of 68Be52 and 71RolO were not given. See also 68Ro06.

133Cs(res n,7) See 69Be19

Circular Polarization

133 Cs(polarized n,7) semi 70Ei04

Angular distribution given by P(0)= R cos(0)

For 1700<E2.<8000 the average circular polarization is:

R=2% 1

On the basis of this result, 70Ei04 concluded that 46% 9 of the thermal neutrons captured form a state with spin 4.

Level Scheme for 134Cs from (n,7)

aRelative contributions of the 232.13" and 234.3"/ are 115 and 100,

respectively. Apparently only coincidences with the 232.17 are listed

bRelative contributions of the 232.1"/ and 234.32" are 7 and 100, respectively.

Apparently only coincidences with the 234.33' are listed

e69Ko23 indicate that absolute values are questionable because of poor

statistics, but that the presence of some relatively long-lived components

is quite definite. Lifetimes > 5 ns were easily noted and resolved

dNo uncertainty was given

eRecommended value from 73Mu14

The low-lying level scheme of 134Cs proposed by 73A132 on the basis of energy sums and 77-data is shown in Drawing 5. Intensities shown are total transitions per 100 captures. Also included by the compilers are high-energy transitions of 70Or05 which feed these levels based on Sn = 6891 e keV. These transitions fit to within 1.0 keV based on energy sums. Jr-values for levels populated by 133Cs(n,7) are those suggested by 73A132.

1 a2Cs(d,p ) Q = 4500 100 54Wa33

236

134 Ba

56 78

Data Sheet-1

NUCLEAR DATA SHEETS

Data Sheet-1 134 Ba

56 78

Coutomb Exci ta t ion

1S4Ba(160,160 ' )

I34Bg(14N,14N' )

604-keV Level

Reaction Data Reaction Data continued

E = 3 3 . 0 to 47.0 MeV 72Ke16 E= 52 MeV 63A131

Pickup Reactions

136Ba(p,t)134Ba E = 52 MeV

These results are regarded by 72Ta37 as preliminary results (unpublished data).

B(E2 ,0+~2 +) = 0.672 16 = 0.75

Spectroscopic quadrupote moment :

Q(2+) = - 0 . 6 4 eb 14

72Ke16 63A131

72Ke16 See also 72To13

Q = -7 .49 MeV 20

E(level) U b o ~ b ) c

0 0 + 60.6 600 2 + 42.8

1170 0(+2++)4 7.1 1400 d ( +) 15.0

1760 3.1 1970 4 + 45.6 2110 17.2 2260 52.5

2450 21.8

S 72Ta37

auncertainty was +20%; overall energy resolution is 100 keV bJ~r-values suggested by 72Ta37 on the basis of angular distributions CCross section integrated from 6 ° to 45°; uncertainties are ~+20% dunresolved doublet of the 1360 (0 +) and 1400 (4 +) levels, A 0 + level

at 1360 has not been found in 134La ~3-decay

237

134 La

57 77

NUCLEAR DATA SHEETS

Data Sheet-1 Data Sheet-I 134 La

57 77


Ty2

~+

Q+= 3730 40

X-Ray

6.50 m 25 51St03 6.8 m 2 59Gi49

A6.67 m 2 68Ab02 6.82 m 8 68Ju02

E¢I= 2070 s 67Ju03

E~2 =2750 50 s 65Bi12 = 2670 s 67Ju03 = 2670 30 s 73A120

Input = 3730 40

= 3692 30 from E#2 of 73A120

Other measurements: 51St03,65Bu11

73WaGo Average of results of

65Bi12 and 67Ju03

eK//3 + = 0.44 scin 65Bi12

65Bi12 deduced this result from the intensity ratio of the annihilation radiation and the K X-ray intensity. 70Bi02 quote this result as 0.40 4 while 73Al15 quote 0.44 3 from 65Bi12.

semi 73Al15

For the 134Ce~134La~134Ba decay chain 73Al15 gives the following K X-ray intensity ratio:

IK(La)/IK(Ba ) = 2.43 10

,~(134 Ba)

E~r a IT(rel.) b

130.38 8 41.0 5 x294.00 8 3.71 7 x295.58 8 4.94 7

475.4 3 1.3 5 563.24 3 72.1 7 592.58 5 3.7 3 604.656 3 1000 3

7(134Ba) continued

Er Iv(tel.) b

991.77 7 1.3 2 x1014.5 5 0.11 5

1017.3 3 0.11 5 1038.73 10 1.10 9

x1046.4 5 0.25 9 x1070.1 5 0.2 1 xi083.7 7 0.03 1

1087.8 3 0.14 7 1104.5 5 0.54 12 1114.3 6 0.40 9 1155.94 2 3.70 9 1167.871 8 16.1 1 1169.04 3 3.4 1

Xl181.3 5 0.05 4 1185.8 2 0.35 9 1211.197 12 24 1 1320.725 7 16.6 7

x1331.8 3 0.26 9 1347.36 8 1.1 1 1368.99 9 0.7 1

x1373.5? 5 0.05 2 1396.726 17 7.3 3 1402.90 c 4 2.2 1 1424.541 4 36.2 8 1483.587 4 28,9 7 1488.12 13 0.5 2

x1499.37 3 0.15 9 1517.09 15 0.33 9 1528.58 11 0.53 9 1554.996 5 80.8 9 1561.4 4 0.25 3 1579.95 7 1.24 7 1649.97 23 0.18 3 1660.63 9 0.55 8 1683.37 9 0.60 6

AAdopted value

XNot shown on decay scheme

semi 73Me26

Er a IT(rel.) b

659.7 6 0.5 2 795.59 16 1.8 3

x832.0 3 0.9 2 854.1? 3 <0.1 861.3 9 0.49 9 920.34 2 3.9 5 973.32 6 1.4 1

1719.16 4 1.45 9 1730.05 7 2.8 2 1732.271 4 45.9 7 1749.5 2 0.25 4 1766.3 2 0.4 1 1774.389 10 9.5 2

x1801.3 3 0.18 1 1836.38 11 0.35 5 1859.49 7 0.75 7 1883.89 7 0.68 6 1890.8 6 0.012 8 1893.35 9 0.49 1 1918.9 2 0.14 4


semi 73Me26

E~ l~(rel.) b

1932.20 5 0.80 5 1959.959 7 18.6 5 1966.11 7 0.6 1 1995.134 9 17.4 5 2029.237 7 7.4 3 2040.0 5 0.04 1 2051.51 4 1.3 1 2088.215 6 11.1 3 2091.80 2 1.96 8 2104.09 5 0.63 4 2124.530 7 6.0 2 2143.25 2 3.17 8

x2155.96 5 0.91 5 2159.49 15 0.11 3 2224.530 11 3.46 8 2246.5 3 0.11 2 2282.39 2 1.68 8 2312,98 7 0.40 3 2329.0? 9 ~0.04 2334.71 9 0.35 4 2442.8 3 0.06 1 2456.2 5 0.03 1 2464.4 2 0.10 2 2482.2 2 0.07 1 2564.62 3 0.99 4 2570.799 10 3.44 8 2599.77 4 0.51 3 2612.3 9 0.009 4

x2652.4 3 0.02 1 2656.0 2 0.08 2 2667.30 7 0.21 3 2696.48 3 0.60 3 2722.4 2 0.07 1 2748.0 4 0.033 7

x2758.4 2 0.081 7 2764.22 6 0.24 1

x2788.1 3 0.033 8 x2803.5 2 0.05 1 x2816.8 4 0.025 8 x2824.5 3 0.06 1

2827.42 9 0.04 1 2829.19 9 0.02 1 2845.6 5 0.02 1 2851.16 6 0.22 1 2866.3 3 0.04 1

x2894.43 14 0.07 3 x2899.7 6 0.011 5 x2923.6 6 0.011 4


aFitting uncertainties given; additional calibration uncertainty of 15 eV is

to he added in quadrature

bFitting uncertainties given; 3% additional uncertainty is to be added

in quadrature

CDoublet from 77-coincidence results

238

134 La

57 77

NUCLEAR DATA SHEETS

Data Sheet-2 Data Sheet-2 134 La

57 77

~(134Ba) continued

E7 a IT(rel.) b

x2938.95 3 0.56 2 2943.3 8 0.014 3 2951.8 7 0.012 6 3027.24 9 0.105 8 3047.4 5 0.004 2

x3055.2 5 0.009 2 3061.23 8 0.10 1 3087.0 2 0.05 1

x3160.00 8 0.097 7 3215.7 8 0.07 3


semi 73Me26 Internal Conversion Data continued

E,y a Iv(rel.) b

x3245.67 12 0.029 5 3327.4 2 0.08 1 3368.8 6 0.006 2 3432.1 7 0.004 1 3450.22 8 0.08 2 3471.0 5 0.002 1

x3509.4 10 0.003 1 3548.5 4 0.006 1

x3590.07 9 0.003 2 3652.0•0 0.0005 4

The internal conversion coefficients, except those of the 1759.9, 2335-, 2379.6-, 2487.0-keV transitions, are calculated by the compilers from the photon intensities of 73Me26 and the conversion electron intensities of 73A120. These conversion coefficients are normalized to a K = 0.00503 for an E2 6053`. 73A120 placed the following upper limits [relative to I(6053')= 1000] on the gamma rays which correspond to the above transitions: I(1759.93') < 1.0, I(23353`)<0.5, I(2379.67) < 0.2, and I7(2487.03' ) < 0.2. Gamma rays with these energies were not observed by 73Me26. The limits shown for a K for these transitions are those deduced by 73A120. Because the lower limits on these conversion coefficients are

68Ju02 measured the intensity of the annihilation radiation to be 2200 310 relative to 100 for the intensity of the 6043'.

Other measurements: 51St03f9Gi4%64Ju03,65Bi12, 65Bull,65Ri04,67Go16,67Ju03, 68Ab02,68Ju02,70Ab06,71Re17,

73A120


Conversion Line Ice(rel. )

563K 10.6 20 605K 100

1156K 0.13 6 I168K c 0.50 12 1211K 0.66 20 1321K 0.35 6 1397K 0.19 4 1425K 0.78 18 1484K 0.55 8 1555K 1.21 22 1730K 0.50 8

(1759.9 9)K 1.73 20 1774K 0.14 3 1956.4K? <0.03 1960K 0.18 3 1995K 0.21 7 2029K 0.08 2 2143K 0.034 8 2225K 0.03 1

(2335 3)K? ~0.02 (2379.6 15)K 0.19 4 (2487.0 15)K 0.09 2

2571K 0.022 9

i(605K)/I(2670/3 +) = (4.2

s 73A120

aK

0.0074 14 0.00503 0.0018 9 0.0013 4 0.0014 5 0.0011 2 0.0013 3 0.0011 3 0.00096 16 0.00075 14 0.00051 9

>0.095 0.OO074 17

0.00049 9 0.0006 2 0.00054 14 0.00054 13 0.00044 15

>0.002 >0.050 >0.023

0.00032 14

8) X 10 -4 s 73A120

substantially higher than other conversion coefficients in the decay of 134La, 73A120 proposed that these are E0 transitions. A comparison with the calculations of 72Trul indicates that the a K lower limits are at least 7 times greater than aK expected for M2 transitions with these energies.

Other measurements: 63DzO2,69Dz08 See also Data Sheet-l ,2 134Cs

& (>1000/3+)(605,11673`) scin.scin 67Ju03

Other measurements: 65Bul l

77 semi-semi 74Gr26

(4757d)(511 e,5637) (5637)(475,51 le,592,604,920,1169,1211,1320,1396,

140T,1719,21047) (5927)(563,604,11677) (6047)(51 le,563,592,795,920,1155,I 169,1211,1320,

1396,1402f,1424,1483,i 555,1732,1774,1959, 1995,2091,2124,2143,2224,22823')

(718.77 d 'g)(563? ,604 ?, 1167?, 14243') (7957)(604,13473') (8617d)(563,6043`) 0207) (563,604,11673`) (10383')(6043`) (11557)(604¢-~ 1168")'?)


a'bsee footnotes a,b on Data Sheet-1 134La CDoubiet in 73Me26 work dpoor statistics in the coincidence spectrum eAnnihilation radiation fCoincidence results indicate a doublet at 1402 keV gNot observed in singles data of 73Me26

239

NUCLEAR DATA SHEETS

134 Data Sheet-3 Data Sheet-3 134 La La

57 77 57 77


3'3' continued semi.semi 74Gr26 Decay Scheme for 134La

(1167+11693')(511a,563,604,1167+1169,1211,1320, 13963')

(12117)(563,604,11673') (13203')(511a,563,604,11673') (13963')(563,604,11673') (14023'c)(563,6043') (14243')(511a,604,7183' b) (14833')(511a,6043') (15553')(511a,6043') (15793')(6043') (16833')(6043') (17193')(563,6043') (17327)(6043') (17743')(6043') (19597)(6043') (19953')(6043') (20513')(6043') (20883')(None) (20913')(6043') (21243')(6043') (21433')(6043') (22243')(6043') (22823')(6043')

Other measurements: 64Ju03,67Ju03,68Ab02, 71Re 17,73A120

3'3'(o) See 64Ju03,65Ri04

Assignment

Ba(a,xn) 134Ce, mass separation, transitions had Ty 2 of t34Ce grandparent. (No gamma rays result from the decay of 134Ce)

Ge(p,spallation) and Er(p,spallation), chem to separate cerium fraction, mass separation

73Me26

73A120

aAnnihilation radiation

bNot observed in the singles data of 73Me26

The decay scheme for 134La proposed by 73Me26 is shown on Drawing 6. The absolute transition intensities are calculated by assuming 100 (3`+ce+/3++e)-transitions to the 134Ba ground state. The ground-state (/3++e) - branch is deduced from the result of 73A120 that I(605K)/I(2670/3 +) = (4.2 8 ) × 10 -4, and the value aK(6057) = 0.00503. Conversion coefficients are estimated from 68HaSe. The resulting absolute transition intensities should be considered to be uncertain by at least 20%. The percent (~3++e)-feeding to each excited level is determined by requiring an intensity balance at the level. Log f t values are calculated by assuming Q = 3692 keV. The absolute photon intensity is given by I7(% ) = 0.0051 I~(rel.) if IT(rel. ) = 1000 for the 6043'. Again the uncertainty is at least 20%. The J"-values shown are those suggested by 73Me26 and are not adopted values.

240

NUCLEAR DATA SHEETS

134 Data Sheet-1 Data Sheet-I Ce

58 76

134 Ce

58 76

Ground-State Decay Reaction Data

ry~ 72.0 h 5 51St03

Other measurements: 58Pa16,60La07,65Bi12, 65Bu 11,67Go 16,73A120

Q+ = 500 1000 syst. 73WaGo

= |~N ÷60 " - - . . 2o 65Bi12

= 1102~8 72A140,73AI15

X-Rays

The result of 65Bi12 was determined from the K X-ray to ~+-intensity ratios for 134La and 134La plus 134Ce sources and a resulting estimate of the K / L capture ratio for 134Ce.

The result of 73Al15 was determined from the IK(La)/IK(Ba ) X-ray intensity ratio and the K X-ray to /3+-intensity ratio of 65Bi12 for ~34La. See X-Rays below.

These results were not used by 73WaGo and they are considered uncertain by considerably more than the indicated uncertainty.

(HI,xnT)

T(134Ce) semi 122Sn(160,4n)134Ce E= 68-76 MeV

E~ Ir(reI.)

397.0 21 6 409.1 100 464.3 22 4 639.5 90 5 724.6 19 4 814.4 54 6 817.9 8 2 908.5 26 4 948.0 48 5

74De12

Other measurements: 67C102,68Wa14,70Sm05

fl+ to K X-ray intensity ratio scin

f l + : X n = 100:143 for 134La+ 134Ce = 100:39 for 134La

65Bi12 estimated eL/e K = 0.23 from these measurements for 134Ce.

134La/134Ba K X-ray intensity ratio

IK(La)/IK(Ba) = 2.43 10

73AI15 deduced eK/e=0.72 8 for 134Ce from this result assuming eK//3 += 0.44 3 from 65Bi12.

65Bi12

No gamma rays observed

Assignment

139 La(p,6n) E ~< 60 MeV, chem Gd(p,spallation), chem, mass separation

semi 73A115

51St03

51 St03 73Al15


13°Ba(a,4n)la4Ce E = 62 MeV

Conversion Line Ice(re1.) b

409K 100 640K 25 815K 9.2 947K 4.2

semi 73Wy01

The conversion electron relative intensities were observed at 90 ° relative to the ion beam direction. No corrections were made for angular distributions.

7(0 Doppler Shift

E~, T,/2 (ps)

409.1 24.6 55 639.5 4.5 19

814.4 <0 .69

74De 12

See also 70Sm05

aUncertainties are +0.15% buncertainties are +t5%

241

134 Ce

58 76

Data Sheet-2

NUCLEAR DATA SHEETS

Data Sheet-2 134 Ce

58 76

(HI,xnT) continued

-r(0)

3'7


semi 74De 12

Ey A2 A4

397.0 -0 .10 3 -0.03 4 409.1 +0.30 3 -0 .10 4 464.3 +0.33 5 -0 .16 7 639.5 +0.31 3 -0 .07 3 724.6 +0.29 5 -0 .04 6 814.4 +0.33 1 -0 .09 2 817.9 +0.49 5 -0 .07 6 908.5 +0.34 6 -0 .09 8 948.0 +0.30 3 -0 .09 4

Level Scheme for 134Ce from (HI,xnT)

The 134Ce level scheme proposed by 74De12 on the basis of (HI,xnT) results is shown on Drawing 7. The level scheme is based on coincidence results, gamma-ray relative intensities, excitation functions, and systematics of stretched E2 transitions. The U-values shown are those suggested by 74De12 and are not adopted values.

The angular distributions of all but the 397.07 correspond to stretched E2 transitions with the gamma-ray cascade starting in a nearly aligned state with J "= 18 +.

Other measurements: 68Wa14,70Sm05

Each of the gamma rays proposed to be a member of a cascade was in coincidence with all the other members.

74De 12

242

NUCLEAR DATA SHEETS

134 Data Sheet-1 Data Sheet-I 134 Pr Pr

59 75 59 75

17-m Metastable-State Decay Decay of the 17-m and ~ l l - m Metastable States

TV ~ 3'(134Ce) continued A17 m 2 67C102 16.4 m 40 70Ab07

Other measurements: 60La07,63La03,64Pe21,72Ek04

Q+ = 6200 1000 syst. 73WaGo

--~ll-m Metastable-State Decay

TV2 ~11 m 73Ar13

Decay of the 17-m and ~-ll-m Metastable States

Data reported below were obtained from measurements of sources containing both 134Pr isomers.

3'(134Ce ) semi 73Ar13

73Ar13 observed that the relative intensities of gamma rays from 134Pr decay depend on how the lS4pr sources were prepared. The relative intensities in the left column below were obtained using a 134pr source separated directly from spallation products. The relative intensities in the right column were obtained using a 134Nd source separated from spallation products in which the 134pr daughter activity had been allowed to grow into equilibrium. Direct comparison of the results listed is prevented by approximately 15% 134pr present in the 134Nd separation in preparation of the lS4Nd 134pr source.

*Follows the decays of 17-m 134pr All other 3"s follow the decay of ~"~ll-m 134pr or follow

the decay of both isomers

E7

134pr 134Nd 134pr

Source Source

I~,(rel.) I~,(rel.)

t68.6 5 0.5 1 weak 184.3 5 1.9 3 weak

x188.9 5 1.4 2 weak x206.8 5 0.3 2 weak

215.1 2 9.7 10 6.8 10 x230.9 4 1.0 2 1.0 3

semi 73Ar13

134pr 134Nd_134pr

Source Source

E 7 IT(rel.) I.t(rel.)

334.5 6 7.3 10 2.3 6 384.5 4 4.9 6 2.2 3

x392.0 6 0.4 1 weak 409.2 1 100 11 100 11 417.5 5 2.5 4 1.5 4 429.5 4 2.4 3 1 .22

x446.7 6 0.4 2 0.3 1 480.4 6 1.3 3 0.6 2 517.6" 5 3.1 10 2.1 10 556.2 2 14.0 17 15.1 18 594.2 3 t.7 3 0.7 2 639.6 2 25.0 27 13.8 16 644.5 4 1.8 3 1.0 3 667.2 2 2.5 5 0.5 3 677.5 2 5.1 8 2.7 5 685.7* 5 t.0 4 0.6 3 718.0 5 1.1 5 weak 763.2 2 4.4 6 2.4 4

x786.6 5 1.0 3 0.3 2 x794.5 5 0.4 2 weak

809.2* 5 0.4 2 0.4 2 814.1 5 1.1 3 weak 846.6 5 2.8 4 1.2 8 965.2 2 14.1 16 15.0 18 973.3 2 9.6 12 6.0 9 978.4 2 5.7 7 3.4 6

x 1000.0 5 1.0 2 0.9 3 1062.2 5 0.5 2 0.2 1 1125.4 2 4.2 6 1.0 3 1162.8" 5 0.5 2 0.6 3

x 1196.8 5 1.2 3 0.3 1 x 1213.3 6 0.5 1 0.3 2 x 1233.9 6 1.1 2 0.3 1

1312.0 7 1.7 7 0.8 2 1365.5" 3 1.1 3 1.6 4 1493.9" 3 4.0 6 5.2 7 1579.9 3 3.5 5 4.5 7 1904.1" 3 7.4 10 10.1 13

x 1964.1 10 1.1 5 1.4 7 21.36.0" 2 8.0 10 I0.8 16

~2233 1.5 3 2.2 5 ~2331 2.t 4 2.9 5

A 853.53' is shown on a decay scheme by 73Ar13 but not included in the table.

x293.5 5 1.2 3 0.3 1 x299.0 5 0.5 2 weak

309.1 3 3.8 5 1.0 2 331.6 6 7.4 10 1.9 5


Other measurements: 63La03,64Pe21,70Ab07

AAdopted value XNot shown on decay scheme

243

NUCLEAR DATA SHEETS

134 Data Sheet-2 Data Sheet-2 134 Pr Pr

59 75 59 75

Decay of 17-m and ~ l l - m Metastable States continued Decay of 17-m and ~ l l - m Metastable States continued

3,3, semi.semi 73Ar13 Decay Scheme for 134pr

Coincidence spectra for the 215.13,, 331.63`, 334.53`, 384.53`, 409.23,, 556.23,, and 639.63, along with spectra of Compton background coincidences are shown by 73Ar13. A partial summary of these coincidence results are presented below.

(215.1 3,)(331.6-334.5 a ,556.2,639.6,763.2,846.63,) (309.1 9(667.23,) (384.53,)(556.2,677.53,) (409.23,)(556.2,639.6,973.33,?) (639.63,)(763.2,973.3? ,978.47?)

The 331.63' and 334.53, gates appear to be identical,

Assignment

aunresolved

The level scheme proposed by 73Ar13 from the decay studies of 17-m and ~ l l - m 134pr is shown on Drawing 7. Coincidence data and energy sums were used to deduce levels populated by ~ l l - m 134pr. Levels populated by 17-m 134pr decay were deduced

Gd(p,spallation), chem, mass separation

by using gamma-ray energy sums. These transitions are indicated by an asterisk. Because 73Ar13 did not determine the gamma-ray intensity attributable to each isomer, /3-decay branching ratios and log f t values are not calculated.

73Ar13

244

NUCLEAR DATA SHEETS

134 Data Sheet-I Data Sheet-1 Nd

60 74

134 Nd

60 74

Ground-State Decay Reaction Data continued

T1/2 8.5 m 10 70Ab07 (HI,xn3`) continued 72Pa26

This half-life was determined from the growth and decay of the 4093` of *34pr. Analysis of the growth and decay of the 6397 of ~34pr gave 7",/2=9 m 2

'),(134 pr) semi 73Ar13

E a

91 101 105 118 162.6 288

The above gamma rays were identified by 73Ar13 on a spectrum obtained from an equilibrium source of 134Nd and 134Pr as belonging to 134Nd decay. An accompanying spectrum obtained from a 134pr source showed these transitions greatly reduced.

Assignment

Gd(p,spallation), chem, observed 70Ab07 growth of 134pr

Gd(p,spallation), chem, ms 73Ar13

Reaction Data

semi 72Pa26 (HI,xny)

118 Sn(2 o Ne,4n)

3`(134Nd )

E = 82-120 MeV

E~, I~(rel.)

166.5 3 294.2 3 100 494.7 4 98 5 631.1 4 97 5 707.5 4 59 3

x727.4 4 30 3 874 weak

I(8743`)/I(166.53`) = 0.07 2

aNo uncertainties given XNot placed in level scheme


3`(0

3`(o)

a(166.53,) ~< 0.15

This total conversion coefficient for the 166.53` was deduced by 72Pa26 by comparing the intensity of the 166.53, with the intensity of the 4 iower members of the cascade. Correction was made for 8747 which depopulates the same level as the 166.53` and for ' the conversion coefficient of the E2 transitions. This conversion coefficient is consistent with an E1 transition.

2294.0-keV Level 2",/2 = 410 ~ts 30

This level half-life was deduced from the decay of the cascade gamma rays.

E, r A2 A4

294.2 +0.24 2 -0.11 4 494.7 +0.25 2 -0 .13 3 631.1 +0.28 5 -0.11 9 707.5 +0.31 12 -0.09 20 727.4 +0.02 9 -0.05 14

Except for the 727% the angular distributions are consistent with stretched E2 transitions.

3'7 semi-semi

Coincidence measurements indicate that the 707.53,, 631.13,, 494.73,, and the 294.23, form a cascade.

Assignment

11 s Sn(= o Ne,4n)

Assignment to t a4Nd was made by examining the variation in gamma-ray intensity with bombarding energy.

245

134 Nd

60 74

NUCLEAR DATA SHEETS

Data Sheet-2 Data Sheet-2 134 Nd

60 74

(HI,xnT) continued

Level Scheme


72Pa26 Miscellaneous

J = 0 for the 134Nd g.s. Atomic beam 72Ek04

The level scheme proposed by 72Pa26 for levels in 134Nd populated by the (HI,xn3') reaction is shown on Drawing 8. Since the 707.57 has a significantly lower intensity than lower energy transitions, it is placed as the upper member of a ground-state quasi-rotational band by 72Pa26. The ordering of the other members of the band is based on the energy systematics expected for these bands. The 166.53' is found to have the appropriate half-life and is identified as the primary transition from the isomeric state. The Y-values shown are those suggested by 72Pa26 and are not adopted values.

8-m ~a4Nd was present in decay curves of spin J = 0 resonance signals obtained from samples of praseodymium irradiated with 90-MeV protons. Because of the short half-life it was not possible to estimate the upper limit of the hyperfine structure splitting.

246

NUCLEAR DATA SHEETS

REFERENCE LIST FOR A=134

39Ab02 P.H. Abelson - Phys.Rev. 56, I (19397 An Investigation of the Products of the Disintegration of Uranium by Neutrons

40Ka07 D.C.Ka!bfell, R.A. Cooley -Phys.Rev. 58, 91 (19407 Radio-Isotopes of Ba and Cs

45S!02 H.Slatis- Arkiv Hat. Astron.Fysik 32A, No. 16 (1945) On Neutron-Induced Activities in Caesium

47E!02 L.G.E!!iott, R.E.Bell- Phys. Rev. 72, 979 (1947} Disintegration Scheme of 1.7 Year Cs TM

,8Ka09 S.Katcoff, J.A.~iskel, C.W.Stanley- Phys.Rev. 74, 631 (19487 Ranges in Air and Mass Identification of Plutonium Fission Fragments

49Be39 R.E. BeI!, H.E.Petch - Phys.Rev. 76, 1409 (19497 Upper Limit for the Lifetime of the 411-keY Excited State of Hg *gs

49FI05 R.G.F!uharty, ~.Deutsch -Phys.Rev. 76, 182A (1948) Low Emission Probability Gamma-Rays

49Le19 H.A.Levy, M.H.Feldman- ORNL-286, p.7 (19497 Hard Gamma Emitters in Fission

49Me36 J.L.Meem, F.Maienschein - Phys.Rev. 76, 328 (19497 Coincidence an~ Absorption Measurements on CS .34, I *~4 , AU 199 and Ca 45

50Be60 J.R.Beyster, M.L. Wiedenbeck- Phys.Rev. 79, 728 (1950) ~-7-Angular Correlation Experiments

50Cai0 R.L.Ca!dwe!l- Phys. Rev. 78, 407 (1950) The Internal Conversion Electrons of Several Short-Lived Neutron Induced

Radioactivities 50De06 M.Deutsch, W.E. Wright- Phys.Rev. 77, 139 (19507

Lifetimes of Excited States of Au .97, Fe sT, Cd***, Hg .98, and T1 Co3 50G119 L.E.Glendenin- NNES 9, 1931 (19507

Half-Life and Radiations of Cs TM 50Ho94 R.Holland - Quoted by 50Wa59 50Me18 F.Metzger, M.Deutsch- Phys.Rev. 78, 551 (19507

A Study of the Polarization-Direction Correlation of Successive Gamma-Ray Quanta

50St27 R.Stump, S.Frankel- Phys.Rev. 79, 243A (19507 ~-7 Angular Correlation Measurements

50Wa59 M.A.Waggoner, M.L.Moon, A.Roberts - Phys.Rev. 80, 420 (19507 Internal Conversion of 7-Rays from Co 6o, Cs TM, Zn6S

50Wi10 A.H.Williams, M.L. Wiedenbeck- Phys.Rev. 78, 822 (19507 Correlation in the Direction and Polarization of Two Successive Quanta For

~h IO6 , CO 60, and Cs134 51Co27 G.B.Cook - AERE-C/R-729 (19517

Short-Lived Antimony Fission Products and their Descendants 51Mi16 W.Mims, H.Halban- Proc. Phys. Soc.(London7 64A, 311 (19517

Positron Electron Branching 51Pa33 A.C.Pappas, C.D.Coryell- Phys.Rev. 81, 329A (19517

Activities and Fission Yields in Chains of Masses 129 to 134 51Pe03 C.L.Peacock, J.L. Brand- Phys. Rev. 83, 484A (19517

Disintegration of 1.7-Year Cs'34 51St03 B.J. Stover - Phys.Rev. 81, 8 (19517

New Neutron Deficient Radioactive Isotopes of the Light Rare-Earth Region 51St59 D.T. Stevenson, M.Deutsch -Phys.Rev. 83, 1202 (19517

Electron-Gamma-Angular Correlation ~easurements in Radioactive Decay 51Su73 A.W.Sunyar - Phys.Rev. 83, 864 (1951)

Measurement of Some Internal Conversion Coefficients 52Gr20 K.Gromov, B.Dzhelepov - Doklady Akad. Nauk SSSR 85, 299 (19527

7-Ray Spectrum of Cs TM 52K139 R.~.Kl_oepper, E.S.Lennox, M.L. Wiedenbeck- Phys.Rev. 88, 695 (1952)

Angular and Direction-Polarization for Co 6o, Cs TM, and Sb .24 52Mi38 J.W.Mihelich- Phys. Rev. 87, 646 (19527

Internal Conversion of Gamma-Ray Transitions in the L-Subshells 52Ro45 B.L.Robinson, L.Madansky- Phys.Rev. 88, 1065 (1952)

Polarization Correlations of the 7-Rays of Cs *~4 and of Annihilation Radiation 53Co13 J.M.Cork, J.M.LeBlanc, W.H.Nester, D.W.Martin, M.K.Brice - Phys. Rev. 90, 444

(1953) Radioactive Decay of Cs TM , Os 18s , Os TM and Os .93

247

NUCLEAR DATA SHEETS

~EFERENCE LIST FOR A=13~

53~a14

53Pa25

53Ya01

54 Ba 88

54Ja24

54Jo18

54Lu22

54~c40

54Su4~

54re 09

54Wa33

55 Az 54

55Be98

55Ev 08

55Fo43

55Ke 0~

55K129

55St62

55Wa 35

56Ch71

56Jo24

560f03

56Wo 09

57Aa 04

57Au75

57Fi50

57Ge 07

R.E.Maerker, R.D. Birkhoff- Phys. Rev. 89, 1159 (1953} Experimental K to L ÷ ~ Ratios for Internal Conversion Lines A.C. Pappas - Thesis, University of Oslo (1953}; niT Technical Report 63;

AECU-2806 (1953} A Radiochemical Study of Fission Yields in the Region of Shell Perturbations

and the Effect of Closed Shells in Fission L.Yaffe, A.g.Day, B.A.Greer- Can.J.Chem. 31, 48 (1953} The Fission Yield of Te*34 A.A.Bashilov, N.M.Antonieva, ~.V. Blinov, B.S.Dzhelepov- Izvest°Akad. Nauk SSSR,

Ser.Fiz, 18, ~3 (1954} Radiation of Cesiu~-134 H.Jaffe - Thesis, Univ.California (1954} ; UCRL-2537 (1954) Electron Capture Studies in Shielded Nuclei M.C.Joshi, B.V. Thosar- Phys.Rev. 96, 1022 (1954} Gamma-Ray Energies in the Decay of Cst3+ D.C.Lu, M.L.Wiedenbeck- Phys. Rev. 94, 501 (1954) Summation of 7-Ray Energies with a Single-Crystal Spectrometer M.Mcgeown, S.Katcoff- Phys, Rev. 94, 965 (1954} Radiations of 53-min T 13. and 86-sec ~,36 A.W.Sunyar, J.W.Mihelich, M.Goldhaber- Phys.Rev. 95, 570 {1954) Decay of Cs134~ {3.1 h} J.Verhaeghe, J. Demuynck- Compt.rend. 239, 1374 (1954} Sur les Spectres de Conversion des Elements 137Ba et g34Ba R.S.Wall- Phys.Rev. 96, 664 (1954} Neutron Binding Energies from {d,p) Q Values T.Azuma - Bull. Raniwa Univ. 3~, 237 (1955} Beta-Ray Spectra of Cs13+, HgzO3, W18s and Ce-Compound G.Bertolini, M. Bettoni, E.Lazzarini- Nuovo cimento 2, 273 (1955} Radioactivity of *arCs A.E.Everett, M.J.Glaubman - Phys. Rev. 100, 955A (1955} Gamma-Gamma Directional Correlations in Cs TM H.H.Forster, a.S. Wiggins - Nuovo cimento 2, 854 (1955} Decay of Cst34 G.L.Keister, E.B.Lee, F.H.Schmidt - Phys.Rev. 97, 451 (1955} Radioactive Decay of Cs134 and Csg3+m E.D.Klema- Phys. Rev. 100, 66 (1955) Gamma-Gamma Angular Correlation in Bat34 M.G.Stewart, R.P.Scharenberg, MoL.Wiedenbeck- Phys. Rev. 99, 691 (1955} Angular Correlation cf the Gamma Rays of Ba TM A.C.Wahl- Phys. Rev. 99, 730(1955} Fission of U 23s by 14-MeV Neutrons: Nuclear Charge Distribution and Yield Pine

Structure G.Chandra- Proc.Indian Acad.Sci. 44A, 194 {1956} Studies with Scintillation coincidence Spectrometer: Cs TM K.E.Johansson- Arkiv Fysik 10, 247 (1956} An Investigation of the Photoelectric Absorption of Gamma-Rays in

Thallium-Activated Sodium Iodide Z.O'Friel, A.H. Weber- Phys.Rev. 101, 1076 (1956} Internal Conversion Coefficients of Ba TM, Vsa, and T1 zo3 J.L.Wolfson- Can. J. Phys. 34, 256 (1956} High-Energy Forbidden ~-Ray Transitions from Cs .34 (2.3 yr.}, Co6O (5.3 yr.},

Sc 46 (84 d.}, and Hg zo~ (47.9 d.) P. Aagaard, G.Andersson, J.O. Burgman, A.C.Pappas - J.Inorg. Nuclear Chem. 5, 105

(1957) Measurements on Electromagnetica!ly Separated Radioactive Isotopes of Iodine L.S.August - Thesis, Louisiana State University (1957} ; Dissertation Abstr. 17,

1792 (1957} The Electron Spectra of Cs134 and Ba*31 E.I.Firsov, A.A.Bashi!ov -Izvest. Akad.Nauk SSSR, Ser. Fiz. 21, 1633 (1957);

Columbia Tech.Transl. 21, 1619 (1958} Decay of Pr s44, RhlO6, Cs13, Using a Luminescence Spectrometer K.W.Geiger- Phys. Rev. 105, 1539{1957) Half-Lives of Sc t~, Co ~o , Zn 6s, AgS~Om, Cs TM, and Eug5~, ~s*

248

NUCLEAR DATA SHEETS


57Ma02 57Me47

57Pe20

58AI 10

58Ba09

58Ed17

58Pa16

58Pi05

59Dz98

59Fr56

59Gi49

59Ho97

59Kn63

60Ba49

60Ea02

60Es01

60La07

60Me05

60Pa06 60Tr02

60Ya03

61B112

61B113

61Jo08

61Ke 03

6 l E e 0~.

P. Marmier- California Inst.Technology Unpubl., Priv.Comm. F.Boehm (1957) W.F.Merritt, P.J.Campion, R.C. Hawkings -Can. J. Phys. 35, 16(1957) Half-Life Determination of Some Radionuclides C.L.Peacock - NP-6325 (1957} Study of Nuclear Disintegrations I.A.Aleksandrov- Izvest.Akad. Nauk SSSR, Ser. Fiz. 22, 827 (1958|; Columbia

Tech.Transl. 22, 821 (1959} Investigation of Cstm4 by the Coincidence Method J.G.Bayly, F.Brown, G.R.Hall, A.J.Walter- J.Inorg. Nuclear Chem. 5, 259 (1958) The Cross-Section of the Reaction '3+Cs(n,7)*3SCs and the Half-Life of *3+Cs J.E.Edwards- J.Inorg. Ruclear Chem. 7, 336 (1958) Half-Lives of ZO+Tl and *34Cs F.I.Pavlotskaia, A.K.Lavrukhina- Zhur. Eksptl.i Teoret. Fiz. 34, 1058 (1958} ;

Soviet Phys.JETP 7, 732 (1958} Rare-Earth Fission Products in Uranium Fission Induced by 660-MeV Protons G.F.Pieper, C.E. Anderson, N.P. Heydenburg- Bull.Am.Phys.Soc. 3, No.l, 38, N13

(1958) Coulomb Excitation of Xenon B.S.Dzhelepov, V.P.Prikhodtseva, Y.V.Kholnov - Izvest.Akad. Nauk SSSR, Ser.Fiz.

23, 826 (1959); Columbia Tech.Transl. 23, 820 (1960} 7 Radiation of Cs TM T.D.French, M.Goodrich -Bull. Am. Phys. Soc. 4, No. 6, 391, 95 (1959) Decay of Cs TM R.K.Girgis, R.van Lieshout - Nuclear Phys. 12, 672 (1959) The Level Scheme of *~4Ba (Some Features of the NaI Summing Spectrometer} G.Holm, H.Ryde- Arkiv Fysik 15, 387 (1959} Measurements on the Radiations from the Decay of I TM and 1.33 H.Knoepfel, P.Scherrer, P.Stoll- Z. Physik 156, 293 (1959} Messung einigeE (n,7)-Spectren mit einem Paarspektrometer hoher Empfindlichkeit A.P.Baerg, R.M. Bartholomew, R.H.Betts- Can.J.Chem. 38, 2147(1960) Search for Independent Formation of Cst3+m in Fission H.T. Easterday, R.L.Smith -Nuclear Phys. 20, 155(1960) Balanced Ion Chamber Measurement of Half-Lives of Several Radioisotopes I.V.Estulin, A.S.Melioransky, L.F.Kalinkin- Nuclear Phys. 16, 168 (1960) Low-Lying Energy Levels of Cs*3+ A.K.Lavrukhina, G.M. Kolesov, Tan Syao-en - Izvest. Akad. Nauk SSSR, Ser. Fiz. 24,

1113 (1960}; Columbia Tech. Transl. 24, 1117 (1961} Neutron-Deficient Cerium Isotopes. (Products of Europium Spallation by 660-MeV

Protons} A.S.Melioranskii, I.V.Estulin, L.F. Kalinkin, B.S. Kudinov - Zhur. Eksptl. I

Teoret. Fiz. 38, 758 (1960): Soviet Phys.JETP 11, 548 (1960} Excited States of Cs TM A.C.Pappas - Priv. Comm. (1960) P.N.Trehan- Thesis, Louisiana State University (1960); Dissertation Abstr. 21,

2338 (196 I} Decay Scheme of Cs TM ¥.Yamamoto - Thesis, Osaka University (1960} Decay of Cs TM S.D.Bloom, L.G. Mann- Proc.Rutherford Jubilee Intern.Conf. Manchester, England,

J.B.Birks, Ed., Academic Press, New York, 733 (1961) Isospin Conservation and 8-7 Circular-Polarization Correlation H.Blechschmidt, J.Christiansen, H.P.Hermsen- Physik.Yerhandl. 12, 185 (1961) Die ~essung der Ralbwertszeiten angeregter Kernniveaus mit

Para!lelp latt e n-Lawinenzahlern N.R.Johnson, E. Eichler, G.D,O'Kelley, J.W. Chase, J.T.Wasson -Phys.Rev. 122,

1546 (196 I} Decay of I TM B.Keisch - J.Inorg. Nuclear Chem. 17, 180 (1961) Half-Life of t3~m-Cs and the Cross-Section for its Formation by Neutron

Activation B.Keisch, E.A.C.Yates - J.Inorg.Nuclear Chem. 17, 183 (1961) Conversion Coefficients for the 127 keV Transition in the Decay of t3+m-Cs

249

NUCLEAR DATA SHEETS


61Wy01

62F~03

62Ha10

62Ma29

62Wy03

63A131

63Be51

63Co36

63Da13

63Di12

63Dz02

63GI03

63Ha38

631t01

63La03

63Mu03

63Sc31

63Se09

63Tr05

63Va13

6~Be16

6~Ew0~

6~Pr02

6%Ju03

E.I.Wyatt, S.A. Reynolds, T.H.Handley, W.S.Lyon, H.A.Parker- Nuclear Sci. And Eng. 11, 74(1961)

Half-Lives of Radionuclideso II J.M. Perguso~, D.L.Love, D.Sam- J.Inorg. Nuclear Chem. 24, I (1962) 7-Ray Spectra of "34m-Te and 134Te A.K.Hankle, J.H.Hamilton, R.V. Stockendal- Bull.Am. Phys.Soc. 7, go.8, 566, B9

(1962) E Internal-Conversion Coefficient of the E2, 605-key Transition in Ba TM L.G.Hann, S.D.Bloom, R.J.Nagel- Phys.Eev. 127, 213~ (1962) Circular Polarization Measurements in the B Decay of V4s, COS6, FeSe, and Cs TM L.D.Wyly, R.E.WOOd, C.H. Braden- Bull. Am.Phys.Soc° 7, No. 8, 581, P6 (1962) ~-7 Directional Correlation in the Decay of Nd*47 and Cs*3+ D.G. Alkhazov, D.S.Andreev, V.D.Vasilov, ¥.P.Gangrskii, I.K.Lemberg, Y.I. Udralov

- Izv. Akad°Nauk SSSR, Ser.Fiz. 27, 1285 (1963); BulI.Acad. Sci. USSR, Phys.Ser. 27, 1263 (196~)

Investigation of Coulomb Excitation of the First Levels of Spherical Even-Even Nuclei by Observation of Coincidences between the Gamma-Hays and Inelastically Scattered Tons

A.M.Berestovoi, D.M.Kaminker, I°A°Kondurov- Zh. Eksperim.i Teor. Fiz. 85, 892 (1963); Soviet Phys.JETP 18, 613 (1968)

Reasurement of the Lifetime of the Levels in the Eu 15~, Ag *xo, and Css3+ Nuclei Produced in (n,7)-Eeactions

L.W.Coleman, L. Schecter - Nucl.Phys. 89, 661 (1963) Gamma-Gamma Directional Correlation in Ba TM H.Daniel, J.Hufner, O. Mehling - Ann.Physik 12, 106 (1963) Zerfallsschema und Matrixelemente fur den ~-Ubergand Cs TM + Ba 13+ L.A.Dietz, C.F. Pachucki, G.l.Land- &hal.Chem. 35, 797 (1963) Half Lives of Zesium-137 and cesium-13# as 8easured by Mass Spectrometry B.S. Dzhelepov, A.I.Medvedev, I.F. Uchevatkin, S.A. Shestopalova - Izv. Akad.Nauk

SSSR, Ser.Fiz. 27, 20~ (1963); Bull.Acad. Sci. USSR, Phys. Ser. 27, 218 (1964} Conversion Electron Spectrum of the Cerium Fraction from Proton Bombarded

Tantalum M.J.Glaubman- Bull. Am.Phys.Soc. 8, No.4, 377, U18 (1963) Second Excited State in Ba .34 A.K.Hankla, J.H.Hamilton, R.V. Stockendal - lrkiv Fysik 28, 429 (1963) K Internal Conversion Coefficients of Transitions in Ba .34 S. Itagaki, S.Hayashibe, K.Sugiyama- Suppl. Phys.Soc.Japan, p.59 (October 1963} On the Shell Structure of Ba TM l.K.Lavrukhina, G.M. Kolesov- Dokl. Akad. Nauk SSSR 188, 1087 (1963); Soviet

Phys. Doklady 8, 168 (1963) New Neutron-Deficient Isotopes of Rare-Earth Elements of the Cerium Group F.~unnich, K.Fricke, U.Wellner - Z.Physik 178, 68 (1963) Untersuchung des Zerfalls yon Ba x33 und Cs*3+ durch 7-T

Rich tungskorre lationsmessung en S.O.Schriber, B.G.Hogg- Nucl. Phys. 88, 687 (1963} Level Scheme of Ha TM O.J.Segaert, J.L.Damuyrck, E.V.Dorikens-Vanaract, M.Korikeus- Nucl. Phy. 43, 76

(1963) The Excited States of Ba TM P.H.Trehan, J.D.French, M.Goodrich- Phys.Rev. 131, 2625 (1963) Decay of CsS34 and the Level Scheme of Ba .34 W. Van Wyngaarden, R.D. Conner- Phys.Canada 19, No.3, 57, Abstr. 11.10 (1963) The Decay of Ca TM N.Benzcer-Koller- Phys. Hey. 134, B1205 (1964) Internal Conversion in Sn *.9 G.T.Ewan, A.J.Tavendale -Can. J.Phys. 82, 2286(1968) High-Resolution Studies of Gamma-Ray Spectra Using Lithium-Drift Germanium

Gamma-Ray Spectrometers J.Frana, I. Rezanka, A.Spalek- Czech.d. Phys. 18B, 678(196~) Decay of Cs*34m G.~.Julian, S.Jha - Bull.Am. Phys. Soc. 9, No.6, 663, X3(1968) Low-Lying Levels in Ba TM

250

NUCLEAR DATA SHEETS


64Pe21

64Va06

64Wa10

65An05

65Bi12

65Br20

65Bu11

65FI02

65Gr13

65Hu07

65Rh01

65Ri0~

65Si17

65Ti0~

66Ar09

66Ba57

66Be20

66He11

66To02

66Zg01

67Be20

67Bh0~

67C102

67GO16

67Ju03

I.Perlman, J.E. Clarkson - TID-4005{Pt. 2B}, 5A6 (1964) Neutron Deficient Praseodymium Isotopes in a Region of Nuclear Deformation W.Van Wijngaarden, R.D. Connor- Can. J. Phys. 42, 504(1964) The Beta Decay of Cs TM H.Warhanek, R.Vandenbosch- J. Inorg. Nucl.Chem. 26, 669 (1964) Relative Cross-Sections for Formation of the Shielded Isomeric Pair x3+m-Cs and

*3+Cs in Medium Energy Fission G. Andersson, G. Rudstam, G.Sorensen - Arkiv Fysik 28, 37 (1965) Decay Data on Some Xe, I, and Te Isotopes E.I. Biryukov, V.T.Novikov, ~.S.Shimanskaya - Izv.Akad. Na~k SSSR, Ser. Fiz. 29,

151 (1965): Bull.Acad. Sci. USSR, Phys. Ser. 29, 148 (1966) Concerning the Ce,34 ~ La*34 - Ba*3+ Decay Chain R.A. Brown, G.T. Ewan- Nucl.Phys. 68, 325 (1965) Study of the Decay of Cs*~4 with a High Resolution Ge(Li) 7-Ray Spectrometer V.R.Burmistrov, Y.A.Andreev, A.D. Vongai, S.P. Karetskaya, G.D.Latyshev,

O.D. Kovrigin - Izv.Akad.Nauk SSSR, Ser.Fiz. 29, 144 (1965) Bull.Acad.Sci. USSR, Phys. Ser. 29, 142 (1966)

Investigation sf the Ce,34 + La13+ + Ba*34 Decay Chain K.F.Flynn, L.E. Glendenin, E.P. Steinberg- Nuc!.Sci.Eng. 22, 416 (1965) Half-L~Ife Determinations by Direct Decay Z.W.Grabowski, R.S.Raghavan, R.M. Steffen- Phys.Rev. 139, B24 (1965) Search for Higher Order Effects in Allowed 8 Transitions J.M.Huc, R. Foucher- J.Phys. (Paris) 26, 390 (1965) Desintegration du *34Cs M.Rho- Nucl. Phys. 65, 497 (1965) Quasi-Particle Interactions in Even Spherical Nuclei R.A.Ricci, G. Comite, R.Speranza, G. Gerschel, M. Pautrat, J. Van Horenbeeck,

J.Teillac - Nuovo Cimento 37, 1752(1965) Vibrational States in *34Ba from the Decay of *34La P.Simonet, G. Boi!e, G. Simonet - CEA-R-2461(1965) Mesures d'Isotopes Radioactifs par Spectrometrie 7 et X a i' Aide de Cristaux

INa. Application a la Radiochimie de Certains Produits de Fission et d ' Act ivat ion

K.S.Tirsel!, W.L.Talbert, Jr. - Nucl.Phys. 74, 385(1965) Circular Polarization Measurements of Gamma Rays Following the Beta Decay of

'24Sb and 13+Cs N.P.Archer, L.B.Hughes, T.J. Kennett, W.V.Prestvich - Nucl. Phys. 83, 241(1966}~

Erratum Nucl. Phys. 89, 706(1966} A Study of the 127I(n,7 } xasI and 133Cs(n,7 ) 1~+Cs Reactions E.Bashandy, A.Abd EI-Haliem- Atomkernenergie 11, 316 (1966) Stuay of Gamma Radiations from Cs*3+ by the External Conversion Method A.M.Berestovoi, I.A.Kondurov, ¥.E.Loginov- Izv. Akad.Nauk SSSR, Ser. Fiz. 30,

359(1966): BulI.Acad.Sci.USSR, Phys. Ser. 30, 36,(1967} Investigation with a Lithium-Drifted Germanium Detector of the Soft Gamma

Radiation Emitted from the Odd-Odd Nuclei Sc 46, MnS6, Co6O, As76, Ag*Oe, Ag **o, In **a and Cs TM in the (n,7) Reaction

R.L.Reath, J.E. Cline- IDO-17188(June 1966) Gamma-Ray Spectrometry of Neutron-Deficient Isotopes L. Tomlinson - J.Inorg.Nucl.Chem. 28, 287(1966) Gamma Rays and Delayed Neutrons from Antimony and Arsenic Isotopes E.F.ZganJar, J.H.Hamilton- Can.J.Phys. 44, 549 (1966} The IEC Method and Conversion Coefficients of the 605-key Transition In *3+Ba H.Behrens- Z.Physik 201, 153(1967) Messung des Asymmetrie-Koeffizienten der 8,7-Zirkularpolarisationskorrelation

an Erlaubten ~-Ubergangen S.K.Bhattacherjee, S.K.Mitra, H.C.Padhi- Nucl. Phys. A96, 81 (1967) Fermi Matrix Elements in Allowed Beta Transitions in s6Co, seCo and 134Cs J.E.Clarkson, R.M.Diamond, E.S.Stephens, I. Perlman -Nucl. Phys. A93, 272(1967) Collective Excitations in Neutron-Deficient Barium, Xenon and Cerium Isotopes Y. Gono, M. Ishihara, M.Sakai- J.Phys. Soc. Japan 23, 145(1967) Decay of La134 G.M.Julian, S.Jha- Nucl.Phys. At00, 392(1967) Excited States of 13+Ba

251

NUCLEAR DATA SHEETS


67Le18 J.Legrand, J.-P.Boulanger- Compt.Rend. 265B, 782(1967) Contribution a l'Etude du Schema de Desintegration du Cesium-134

67R110 D.E.Raeside, J.J. Reidy, M.L.Wiedenbeck- Nucl.Phys. A98, 54(1967) The Level Scheme of 134Ba

67Ea18 R.7.Rama Mohan, ~.V. Reddy, B.B.V. Raju, S.Jnanananda - Indian J. Phys. 41, 30 (I 967)

7-7 Directional Correlation Studies and Level Scheme of Ba-134 67To05 L.Tomlinson, M.H. Hurdus - Phys.Letters 25B, 545(1967)

A New Antimony Delayed Neutron Precursor 67We07 M.Weis, A.Kokes- Izv. Akad.Nauk SSSR, Ser. Piz. 31, 650(1967} ;

Bull. Acad. Sci. USSR, Phys.Ser. 31, 646(1968) Adaptation of an Intermediate Imaging Beta Spectrometer for ~-7 Coincidence

Measurements 67Wi23 R.~.Wilkinson, P.K.Wohn - Bull.Am.Phys. Soc. 12, No.l, 55, CG11 (1967)

Beta-Gamma Directional Correlation in the Allowed Beta-Decay of Cs*3+ 68Ab01 A.Abdul-Malek, R.A.gaumann- Nucl. Phys. A106, 225 (1968}

Levels in *3+Ba Populated by the Decay of *S+Cs 68Ab02 A.Abdul-Malek, R.A.Naumann- Nucl.Phys. A108, 401(1968}

Energy Levels in Some Doubly Even Barium Isotopes 68A115 E.C.A!exander, Jr., G.A.Bennett, B. Srinivasan, O.K.Manuel- Phys. Rev. 175, 1494

(1968) Xenon-134 from the Decay of Cesium-134

68Be52 A.M.Berestovoi, Y.A.Kondurov, Y.E.Loginov- Izv.Akad.Nauk SSSR, Ser.Fiz. 32, 296(1968) : Bull. Acad. Sci.USSR, Phys. Ser. 32, 269(1969)

Excited States of 134Cs 68Be63 Y. Berg, K.Fransson, C.E.Bemis- Arkiv Fysik 37, 203 (1968)

The Decay of 134Te 68Bo01 M.Bogdanovic, M.Hladjenovic, R.Stepic - Nucl. Phys. AI06, 209 (1968)

Internal Conversion M/L and (N+O)/M Ratios for E2 Transitions 68Bo55 J.-P. Boulanger- Thesis, Univ. Paris (1968): CEA-R-3590 (1969)

Traitement des Informations en Spectrometrie Gamma. Application a l'Etude de Schemas de Desintegration

68De18 A.A.Delucchi, K.E.Greendale, P.O. Strom- Phys.Rev. 173, 1159 (1968) Cumulative Fission Yield and Half-Life of *34Sb

6SHame R.S.Hager, E.C. Seltzer- Nucl. Data Aq, I (1968| Internal Conversion Tables. Part I: K-, L-, M-Shell Conversion Coefficients for

Z = 30 %0 Z = 103 68Rs01 S.T.Hsue, M.U.Kim, L.M.Langer, E.H.Spejewski - Nucl.Phys. A109, 423(1968):

Erratum Nucl. Phys. A141, 674 (1970) The Beta Decay of '34Cs

68Ju02 G.H.Julian, T.E.Fessler - Phys.Rev. 172, 1208 (1968} Decay of t36La and 134La

68Na11 T.S.Nagpal - Can. J. Phys. 46, 2579 (1968) Decay of ,34Cs

68Re04 S.A.Reynolds, J.F.Emery, E.I.Wyatt -Nucl. sci.Eng. 32, 46 (1968) Half-Lives of Radionuclides - TII

68Ro06 I.N.Rozantsev, I.V.Estulin- Izv. Akad. Nauk SSSR, Ser.Fiz. 32, 81(1968); Bul!.Acad. Sci.USSR, Phys.Ser. 32, 80(1969)

Short-Lived States of *OsAg, 134Cs and S6OTb, Excited in (n, 7) Reactions 68Sa01 K.S.R.Sastry, R.J.Ouellette, Y.Sharma, R.Strange- Phys.Letters 26B, 207 (1968)

On Nigher Order Effects in Some ~bnormal Allowed Beta-Transitions 68To18 L.Tomlinson, M.H. Hurdus -J.Inorg.Nucl.Chem. 30, 1125 (1968}

Delayed Neutroa Precursors I. Antimony and Arsenic Precursors Separated by Electrolysis

68To19 L.Tomlinson, M.H.Hurdus- J.laorg. Nucl.Chem. 30, 1649 (1968) Delayed Neutro~ Precursors If. Antimony and Arsenic Precursors Separated

Chemically 68Wa14 D.Ward, ~.M.Diamond, F.S.Stephens- Nucl.Phys. A117, 309(1968)

Collective Levels in Light Even Ce Isotopes 68Wi27 W.G.Winn- Thesis, Cornell University (1968): NYO-3664-6 (1968)

Experimental Studies of *36m-Ba, *34m-Xe, IzYm-Xe, and s~sm-Xe 69Be19 F.Becvar, J.Vrzal, J.Liptak, J.Urbanec -Czech. J. Phys. 19B, 248 (1969)

Gamma-Ray Spectrum from Radiative Capture in Cs

252

NUCLEAR DATA SHEETS


69B119

69Dz08

69FuCs

69Ko23

69Ly08

69Si16

69Su09

69Sui0

69Ta10

69Ta12

69Vo15

69Wi16

70Ab06

70Ab07

70Be50

70Bi02

70B116

70Bo53

70Ca16

70Ch33

70EiO~

J.Blachot, L.C. Carraz- Radiochim. Acta 11, q6 (1969} Separation des Produits de Fission par Recul darts Phi+Sn et Sublimation des

Composes Formes dans un Tube a Gradient de Temperature-Rayonnements Gamma du z 34Te

B.S.Dzhelepov, A.I. Medvedev, V.E.Ter-Nersesyants, I.F. Uchevatkin, S.A.Shestopalova - Program and Theses, Proc. 19th Ann. Conf. Nucl.Spectrosc.Struct. At.Nuclei, Erevan, Pt. 1, p. 83 (1969)

Decay of t3+La G.H.Fu!ler, V.W.Cohen - Nucl. Data Tables A5, 433(1969} Nuclear Spins and Moments R.G.Korteling, J.M. DtAuria, CoH. W.Jones, T.L.Isenhour - Nucl. Phys. A138, 392

(1969) Lifetimes Associated with Low-Energy Gamma Transitions in tzsI and t3~Cs F.J.Lynch, L.E. Glendenin- Phys.Rev. 186, 1250 (1969) Lifetime of the 11-keV Level in Cs*~+ B.Singh, A.H.Kukoc, H.W.Taylor- Can. J.Phys. 47, 1863 (1969} Evidsnce Against the 1580-key Level in *3+Ba Proposed by T.S.Nagpal M.Subotowicz, 3.Kuranc, J.Sarzynski -Izv. Akad, Nauk SSSR, Ser. Fiz. 33, 1638

(1969); BulI. Acad.sci. USSR, Phys. Ser. 33, 1503 (1970} 8-7 Angular Correlation Measurements for Some Highly Retarded Allowed

Transitions S.P.Sud, V.KoS. Shante, P.N.Trehan - Indian J. Phys. 43, 40 (1969) A Note on the Spin of the 1970 keV Level in Ba TM E. Takekoshi, HoUmezawa, T. Suzuki- ~ucl.Phys. A133, 493 (1969) A Study of the Decay Scheme of '34I H.W.Taylor, B.Singh, A.H.Kukoc, J.D.King- Can. J.Phys. 47, 2873 (1969) Measurement of the Directional Correlation of the 1038-605 keY Gamma Cascade in

1 3 * B a T. von ~gidy, H. Morinaga, E.W.A.Lingeman, P.Polak - Z.Naturforsch. 24a, 1831

(1969} On the Beta Deuay of a37Pa W.G.Winn, D.G.Sarantites -Phys.Rev. 184, 1188 (1969) Ge(Li)-Ge(Li} Study of the *3+I Decay A.A.Abdurazakow, K.Y.Gromov~ ToA. Islamov, B.Sabirov - Izv. AkadoNauk SSSR,

Ser. Fiz. 34, 734 (1970); Bull. Acad. Sci.USSR, Phys.Ser. 34, 6~9 (1971} T-Spectrum of the *34Ce - t3+La + t 3 4 B a Chain A.A.Abdurazakov, R.Arlt, R.Babadzhanov, G. Baier, V.A.Morozov, G. Musiol,

K.Tyrroff, H. Strusny- Izv.Akad. Nauk SSSR, Ser. Fiz. 34, 796 (1970); Bull. Acad. Sci. USSR, Phys.Ser. 34, 706 (1971)

New Isotopes t33Pr, *34Nd and *3SNd~ Decay Schemes of *z+Pr and z3SPr H. Beer- Z.Naturforsch. 25a, 1513 (1970) Die Rotation der 77-Winkelkorrelation der Kaskaden (570-797) keY, (570-797-605)

key and (797-605) key yon Ba TM ia einem ausseren Magnetfeld E.I.Biryukov, N.S.Shimanskaya- Yad.Fiz. 11, 246 (1970); Sov.J.Nucl. Phys. 11,

138 (1970) Experimental a~d Theoretical K/p ÷ Branching Ratios for Allowed Gamow-Teller

Transitions H. Blunck, J.Br~unsfurth, E.Gerdau, W.Hautsch, W.Muller, W. Rath, D.Repsilber,

D.Ruter, F.Sabathil, B.Scharnberg, H.Winkler, G. Wittkemper, H.J.Wolf- BMBW-FB-K-70-09, p.22 (1970)

Experimente der Kernmomentengruppe S.Bor~, P.Carle, L.E.De Geer, G. Holm, A. Kerek- Ann. Rept., Research Inst.Phys.,

Stockholm, p. 26 (1970) Single-Closed *34Te Nuclide Populated in 11 sec z3+Sb Decay L.-C. Carraz, J. Blachot, E.Monnand, A.Moussa- C.R. Acad. Sci., Ser. B, 270, 358

(1970) Isomere de 3,8 mn de l'Iode 134 E.Cheifetz, R.C.Jared, S.G.Thompson, J.B.Wilhelmy - Proc.Int.conf.Prop. Nuclei

Far from Region of Beta-Stability, Leysin, Switzerland, Vo!.2, p.883 (1970); CERN 70-30 (1970)

Excited State in Even-Even Pission Products J.Eichler, F.Djadali- Nucl. Phys. AI~7, 150 (1970) Measurement of the Average Circular T-Polarization and Determination of Spins

for Compound States Formed in Thermal Neutron Capture

253

NUCLEAR DATA SHEETS

REFERENCE LIST FOE A=13~

70Er11 H.N.Erten- Thesis, Mass.lnst.Tech. (1970) Short-Lived Fission Products: Iodine, Antimony, Bromine

70~r38 J.W. Gruter, K.Sistemich, P.Armbruster, J.Eidens, H.Lawin- Phys. Lett. 33B, 474 (1970) ; See Also CERN-70-30, ¥ol.2, p.967 (1970)

Identification of ps-Isomers among Primary Fission Products 70Ho06 S.Hofmann, H.E. Walter, A.Weitsch- Z. Phys. 230, 37 41970}

Untersuchung des Zerfalls yon 13~Cs dutch 7-7-Winkelkorrelationsmessungen 70Jo20 W.John, F.N.Guy, J.J.Wesolowski- Phys.Rev. C2, 1451 (1970}

Four-Parameter Measurements of Isomeric Transitions in zszCf Fission Fragments 700r05 V.J.Orphan, N.C.Rasmussen, T.L.Harper - GA-10248 (1970)

Line and Continuum Gamma-Ray Yields from Thermal-Neutron Capture in 75 Elements 70Pa28 g.S.Pande, B.P. Singh - Indian J.Pure Appl.Phys. 8, ~01 (1970)

Gamma-Gamma-Gamma Directional Correlation Studies from the Decay of '34Cs 70Pe08 K.A.Petrzhak, V.F.Teplykh, ~.G.Panyan - Yad.Fiz. 11, 1178 (1970};

Sov. J.Nucl.Phys. 11, 654 (1970) Mass-Spectrometric Determination of Relative Yields of Xenon Isotopes in

Fission of Natural Uranium by 1~.7 MeV Neutrons 70Pi03 O.Pingot- N~cl. Phys. A150, 587 (1970}

Polarisation Circulaire du Rayonnement Gamma de *z4Sb, '34Cs et *1om-Ag 70Qa01 S.M.Qaim, H.o.Denschlag- J.Inorg.Nucl.Chem. 32, 1767 (1970)

Independent Yields of *33I, 134I, and *3sI in the Thermal Neutron Induced Fission of 233U and 239Pu: Effect of the 82-Neutron Shell Closure on Charge Distribution

70Qa02 S.M.Qaim- J.Inorg.Nucl. Chem. 32, 1799 (1970) Activation Cross-Sections for Some 14.8 HeY Neutron-Induced Nuclear Reactions

on Caesium: Isomer Ratios of '34Cs, 133Xe and 13oI 70SiO~ B.Singh, H.W.Taylor - Nucl.Phys. A145, 561 (1970)

M1/E2 Multipole Mixing of the 563 and 569 key Transitions in *34Ba 70Sin05 G.L.Smith, J.E. Draper- Phys.Rev. C1, 1548 (1970}

Ground-State Quasirstational Bands and Other States in *3o,13z,*3~,136,t3s,*4oce 70Tu08 C.E.Turner, Jr. -Thesis, Iowa State Univ. (1970); IS-T-350 (1970)

Lifetimes of the First Excited States in Tm16~, Tin*7*, and Cs134 70Va41 J.R.Vau Hise, R.A. MeyeE, D.C.Camp- Bull.Amer.Phys. Soc. 15, No.q, 623, JEt6

41970} Decay of '34Cs

70~i16 J.B.Wilhelmy, S.G.Thompson, RoC.Jared, E.Cheifetz - Phys.Rev.Lett. 25, 1122 (1970)

Ground-State Bands in Neutron-Rich Even Te, Xe, Ba, Ce, Nd, and Sm Isotopes Produced in the Fission of asaCf

71Ac01 E. Achterberg, ~.Y.de Aisenberg, F.C.Iglesias, A.E. Jech, J.A. Moragues, D.Otero, M.L.Perez, A.N.Proto, J.J. Rossi, W. Scheuer, J.F.Suarez- Phys. Rev. C4, 188 (1971)

On-Line Spectroscopy of 134~,g-I 71Be5~ V.Bsrg, A. Hoglund- Nucl.Phys. A175, 495 (1971)

The Decay of the 79.5 keV Level in 134I 71Ca48 J.Campos, A.Delgado -An.Fis. 67, 449 (1971)

Comprobacion del Esquema de Desintegracion del 134Cs Mediante Coiucidencias Gamma-Gamma

71Dr10 H.Drost, W. Weiss, G, Weyer - Proc.Int.Conf.Angular Correlations in Nuclear Disintegration, Delft, Netherlands (1970), H. van Krugten, B.van Nooijen, Eds., Wolters-Noordhoff Publ., Groningen, p.5~9 (1971)

Magnetic ~oment and Half-Life of the First Excited State in '34Cs 71Fo26 H.Folger- BMBW-FB-K-71-12, p. 51 (1971)

Das 10.8 sec Antimon-134 71Re17 D.J. Reuland- Nucl. Phys. A176, 657 (1971}

Excited Levels of 134Ba from the Decay of 134La 71Ro10 I.N.Rozantsev- Izv. Akad.Nauk SSSR, Ser.Fiz. 35, 112 (1971};

Bull. Acad. Sci. USSR, Phys.Ser. 35, 102 (1972) Some States of z3~Cs

71Su02 S.P. Sud, P.N.Tcehan- J. Phys.Soc. Jap. 30, 919 (1971} The Decay of ~3~Cs

71Wi25 B.H.Wildenthal, D.Larson- Phys.Lett. 37B, 266 (1971) Th8 Structure of the Lighter N = 82 Nuclei

254

NUCLEAR DATA SHEETS


72A140 V.S.Alexandrov, V.S. Butsev, T. Vylov, K.Y.Gromov, 7.G.Kalinnikov- JINR-P6-679~ (1972}

Determination of the Energy of '34Ce~ 134La and *6OEr~ *6OHo Decay 72Be45 M. Behar, R.M.Steffen, C. Telesco- Nucl. Phys. A192, 218 (1972)

The Spin of th- ~ 1643 key State and ffultipole Mixing Ratios of y-Transitions in *3+Ba

72Ee90 R.B.Begzhanov, O.S.Kobilov, K.S.Sabirov, S.K.Salimov, U.K. Khudaibergenov- Izv. Akad. Nauk SSSR, Ser.Fiz. 36, 2520 (1972): Bull.Acad. Sci. USSR, Phys.Ser. 36, 2190 (1973)

The Angular Correlation of 7-Rays of Neutron-Rich Xenon Isotopes 72C115 R.G.Clark- Thesis, Iowa State Univ. (1972) : See Also 74C102

Identification and Characterization of Isomeric States in the de-Excitation of 2s~Cf Fission Fragments

72Co0~ C.D.Coryell, H.N.Erten, P.K.Hopke, W°B.Walters, R.Dams, H.C. Griffin- Nucl.Phys. A179, 689 (1972)

Identification and Characterization of 3.8 rain *3+m-I 72Da36 H.S.Dahiya, B.P.Singh - Indian J. Pure Appl. Phys. 10, 585 (1972)

Study of the Decay of *3+Cs by Beta-Gamma-Gamma Angular Correlation Measurements

72Ek0~ C. Ekstrom, S.Ingelman, M.Olsmats, B.Wannberg, G.Andersson, A.Rosen - Nucl. Phys. A196, 178 (1972)

Nuclear Spins of Neutron-Deficient Pr and Nd Isotopes 72Hi15 J.C.Hill, L.J.Probst - Bull. Amer. Phys. Soc. 17, No. 10, 907, CB12 (1972)

Levels in the N=82 Nucleus 13+Te Populated in *3+Sb Decay 72HoWa N.E. Holden, F.W.Walker - Chart of the Nuclides, 11th Edition, Knolls Atomic

Power Laboratory (October 1972) 72Ho08 F.F.Hopkins, J.R.White, G.W. Phillips, C.F. Roore, P.Richard- Phys. Rev. C5, 1015

(1972) Further Measuraments of Gamma Transitions in Spontaneous-Fission Fragments of

s~Cf 72Ke16 J.R.Kerns, J.X. Saladin- PhysoReV. C6, 1016 (1972)

Reorientation Effect Measurements on Ba134,'36,13s 72Ke21 A.Kerek, G.B.Holm, S.Borg, L.-E.de Geer - Nucl. Phys. A195, 177 (1972)

Two-Proton and Proton-Neutron States in the Doubly Closed Shell *3zSn Region 72La14 F.Lagoutine, J. Legrand, C.Perrot, J.P.Brethon, J. More! -

Int. J.Appl. Radiat. Isotop. 23, 219 (1972) Periodes de Quelques Radionucleides

72Pa26 D.G.Parkinson, I.A.Fraser, J.C.Lisle, J.C.Willmott - Nucl. Phys. A194, ~3 (1972)

An Isomeric State in *34Nd 72Pe17 K.A. Petrzhak, M.G.Panyan, V.F.Teplykh, B.M.Aleksandrov- Yad.Fiz. 15, 860

(1972); Sov.J.Nucl.Phys. 15, 482 (1972) Relative Yields of Xenon Isotopes in Npmm7 and Np TM Fission by Neutrons

72Pe25 K.A. Petrzhak, M.G.Panyan, V.F.Teplyhh, M.Y. Kondratko- At. Energ. 33, 709 (1972) ; Soy.At. Energy 33, 826 (1973)

Relative Yields of Xenon Isotopes in Neutron Fission of pu239 and Uz33 72P107 F.P!eiter- RCN-170 (1972)

Internal Conversion Measurements 72Ta37 H.Taketani, M.Adachi, M.Ogawa, K. Ashibe, T. Hattori - Syrup. Two-Nucleon Transfer

and Pairing Excitations, Argonne, Ill., p.394 (1972) ; CONF-720309 (1972) (p,t) Reactions on *34,*36,*3aBa

72To13 C.W. Towsley, R. Cook, D.Cline, R.N.Horoshko - Contrib.Int.Conf. Nuclear Moments and Nuclear Structure, Osaka, Japan, p.209 (1972): Priv.Comm. (August 1973)

Measurement of the Shapes of lao,13~,136Ba 72Trul V.F.Trusov- Nucl. Data Tables 10, 477 (1972)

Internal Conversion Coefficients for High-Energy Transitions 72Tu05 C.E.Turner, Jr., E.N. Hatch- Bull. Amer. Phys. Soc. 17, No.4, 559, HF12 (1972)

Lifetimes of the First Excited States in *69Tm, *YZTm, and *3~Cs 73A115 v.S.Aleksandrov, V.S.Buttsev, T. Vylov, K.Y. Gromov, V.G.Kalinnikov-

Izv. Akad. Nauk SSSR, Ser.Fiz. 37, 948 (1973): Bull. Acad.Sci. USSR, Phys. Ser. 37, No.5, 34 (1974)

Determination of the *3+Ce ~ *m4La and *6OEr - *6OHo Decay Energies

255

NUCLEAR DATA SHEETS

REFERENCE LIST FOR A=13~

73A120

73A132

73Ar13

73De5~

73Di01

73Ga10

73Ge02

73Jo02

73Kh05

73He26 73Mu14

73Ra08

73Rai0

73StI~

7 3 7 8 0 2

73WaGo

73Wy01

7,CI02

7~De12

74Di01

7,Di03

74Gr26 7~Ha19

74Ne25 74Va21

V.S.Aleksandrov, B.S.Dzhelepov, A.I.Hedvedev, V.E.Ter-Nersesyants, I.F.Uchevatkin, S.A.Shestopalova- Izv.Akad. Nauk SSSR, Ser.Fiz. 37, 1035 (1973): Bull. Acad. Sci.USSR, Phys. Ser. 37, No. 5, 106 (1974)

The *34La ~ *34Ba Decay V.L.Alexeyev, A.I.Egorov, BoA. Emelianov, L.P. Kabina, D.H.Kaminker,

!.A. Kondurov, E.V.Leushkin, Y.E.Loginov, V.L.Rumjantsev, S.L. Sakharov, A.I.Smirnov, Y.L. Khazov- LINP-22 (1973}

Scheme of Cesium-134 Low Excited States R.Arlt, G.Beyer, V.Fominykh, E.Herrmann, A.Jasinski, H.G.Ortlepp, H. Strusny,

H.Tyrroff, Z. Usmanova - Acta Phys.~ol. B4, 301 (1973) A New Isomeric State in *S4Pr and Excited States of '34Ce E. Degrieck, G.Vanden Berghe- Z. Phys. 265, 393 (1973) On the Nature ~f the Isomeric 6 + State in the Heavy Doubly-Even Te Isotopes L.A.Dietz, C.F. Pachucki- J.Inorg.Nucl. Chem. 35, 1769 (1973) ,37Cs and '34Cs Half-Lives Determined by Hass Spectrometry P.L.Gardulski, H.L.Wiedenbeck- Phys. Rev. C7, 2080 (1973) EO Contributions in 2 + to 2 + Transitions in *6uDy, *34Ba, **uCd, and saKr R.J.Gehrke, L.D.HcIsaac, R.L.Heath- ANCR-1129, p.23 (1973) 7-Ray Energy and Relative Intensity Heasurements of Several Fission Product

Radionuclides K.H.Johansen, K. Bonde Nielsen, G.Rudstam- Nucl. Phys. A203, 481 (1973) Strength Functions in the Z-Decay of Short-Lived Fission Products T.A.Khan, D. Hofmann, F. Horsch -Nucl.Phys. A205, 488 (1973) A Study of the de-Excitation of Primary Fission Fragments from the

Neutron-lnduced Fission of z3sO R.A.Meyer - Priv. Comm. (October 1973) S.F.Hughabghab, D.I.Garber - BNL-325, 3rd Ed., Vol. 1 (1973) Neutron Cross Sections, Resonance Parameters S.~.Rao, P.K.K~roda- J. Inorg. Nucl.Chem. 35, 14~3 (1973) Charge Distribution in Neutron-Induced Fission of Thorium S. Raman, N.B.Gove- Phys.Rev. C7, 1995 (1973) Rules for Spin and Parity Assignments Based on Log ft Values P.H.Stelson, S. Raman, J.A.HcNabb, R.N. Lide, C.R.Bingham -Phys.Rev. C8, 368

(1973) Search for a Z-~ro-Phonon Gamma-Ray Transition in *usPd and 13~Ba A.I.Vdovin, C.Stoyanov- Izv.~kad.Nauk SSSR, Ser.Fiz. 37, 1750 (1973):

Bull.Acad. Sci. USSR, Phys.Ser. 37, No.8, 162 (197,) Coupling between Collective and Quasiparticle Excitations in Spherical

Even-Even Nuclei A.H.Wapstra, N.B.Gove- Priv.Comm. (July 1973) Supplement to 1971 Hass

Adjustment, Nuclear Data Tables ~9, Nos. 4-5, 265 (1971) W.G.Wyckoff, J.E.Draper- Phys.Rev. C8, 796 (1973) In-Beam Electron Conversion from ¥rast Levels of 7a,74,7%TSSe, 7s,su, az,s,Kr,

**4,**6,**s,lzu,*2a,*24,X~6Te, and 13G,132,134,136,138Ce Excited by (aeXn) R.G.Clark, L.E. Glendenin, W.L.Talbert,Jr. - Proc. Symp. Phys.Chem.Fission, 3rd,

Rochester, N.Y. (1973), Intern. At. En. Agency, Vienna, Wol. 2, p. 221 (1974) Fission Fragment Isomers from Spontaneous Fission of as2cf W.Dehnhardt, S.J. Kills, H.Huller-Veggian, U.Neumann, D.Pelte, G.Poggi, B.Povh,

P.Taras- Nucl. Phys. A225, I (197~) ¥rast Cascades in Even-Hass Ce Isotopes H.Diksic, D.K.McMillan, L.Yaffe- J.Inorg. Nucl. Chem. 36, 7 (1974) Nuclear Charge Dispersion in Hass Chains 130-135 from the Fission of 23sU by

M edium-Energ7 Protons H.Diksic, L.Yaffe, D.G.Sarantites - Phys.Rev. CI0, 1172 (1974) Identification and Decay Characteristics of *3~I-m J.Graber - Priv. Comm. (July 197~) D.Habs, H.Klewe-Nebenius, K.Wisshak, R.Lohken, G. Nowicki, H. Rebe!- Z.Phys.

267, 149 (1974) The Spherical to Asymmetric Shape Transition in the Hass Region with 50 < (N,Z)

< 82 R.A.~eyer- Priv.Comm. (July 197~) J.R.Van Hise, D.C.Camp, R.A.Meyer - Priv.Comm. (July 1974)

256

Documents

Nuclear Data Sheets for a - 134