22
Beta Dose Calculations External beta dose rate not in contact with skin skin – Point Source, 10 mCi, distance of 0.1 m D rad m Ci h A d = 27 2 2 Ci hr d 2 2 ( ) . D rad m Ci hr mCi m Ci mCi rad hr = = 27 10 01 1000 27 2 2 1 ( )

Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

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Page 1: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Bet

a D

ose

Cal

cula

tions

•E

xter

nal b

eta

dose

rate

not

in c

onta

ct w

ith

skin

skin

–P

oint

Sou

rce,

10

mC

i, di

stan

ce o

f 0.1

m

Dradm

Cih

A d=

27

2

2Cihr

d−

2

2

()

.

Dradm

Cihr

mCi

mCi mCi

rad hr

=− −

=27

10 0110

0027

2

2

1

()

Page 2: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Bet

a D

ose

Cal

cula

tions

•E

xter

nalβ

dose

rate

inco

ntac

twith

skin

•E

xter

nal β

dose

rate

in c

onta

ct w

ith s

kin

–50

cm

2ar

ea, 1

0 m

Ci S

ourc

e, E

max

= 1

MeV

Wh

tith

kid

tith

l?

–W

hat i

s th

e sk

in d

ose

rate

with

no

glov

e?–

With

one

glo

ve?

–W

ith tw

o gl

oves

? DC

AD

Ca

f=

DC

10m

Ci

02

mC

i C2

DC

10 m

Ci

50 c

m0.

2m

Ci

cmC

f2

2f

==

Page 3: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Hea

ly C

urve

s10

S =

9

mCi))

810

200

μm

70 μ

m

cm2/(hr-m

4620

0 μm

1G =

5

CF(rad-c

2

30 μ

m

2G =

3.5

Max

imum

Bet

a En

ergy

(MeV

)0.

00.

51.

01.

52.

02.

53.

00

3

Page 4: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Bet

a D

ose

Cal

cula

tions

•S

kin

dose

rate

with

nogl

ove?

Ski

n do

se ra

te w

ith n

o gl

ove?

D0.

2m

Ci

9rad

cmh

Ci

1.8

rad

/hr

2

2

=⋅

−=

cmhr

-mC

i2

•S

kin

dose

rate

with

one

glo

ve?

D0.

2m

Ci

cm5

rad

cmhr

-mC

i1.

0 ra

d/h

r2

2

=⋅

−=

•S

kin

dose

rate

with

two

glov

es?

m

Ci

rad

cm2

4

D0.

2m

Ci

cm3.

5ra

dcm

hr-m

Ci

0.7

rad

/hr

2=

⋅−

=

Page 5: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Gam

ma

Dos

e C

alcu

latio

ns•

Ext

erna

lgam

ma

dose

rate

Ext

erna

l gam

ma

dose

rate

–C

s-13

7, A

= 1

0 m

Ci,

d =

0.1

mW

hata

reth

ede

epey

ean

dsh

allo

wdo

se–

Wha

t are

the

deep

, eye

, and

sha

llow

dos

e eq

uiva

lent

rate

s?–

Firs

tcal

cula

teex

posu

rera

te–

Firs

t cal

cula

te e

xpos

ure

rate

XA d2

d

()

X10

mC

i0

1C

i10

00m

Ci

Ci

m2

2=

⋅=

ΓΓ

1

5

()

0.1m

1000

mC

im

Page 6: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Gam

ma

Dos

e C

alcu

latio

ns•

Gam

ma

Ray

Ene

rgy

and

Spe

cific

Gam

ma

•G

amm

a R

ay E

nerg

y an

d S

peci

fic G

amm

a R

ay C

onst

ant

Nuc

lide

Γ (R

-m2 )/(

hr-C

i)En

ergy

(k

eV)

(Rm

)/(hr

Ci)

(keV

)13

7 Cs

0.33

66

2

6

Page 7: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Gam

ma

Dos

e C

alcu

latio

ns•

Now

Con

vert

to D

ose

Equ

ival

ent R

ate

q–

rem

/R c

onve

rsio

n fa

ctor

Conv

ersio

nFa

ctor

satD

epth

Phot

onCo

nver

sion

Fact

ors a

t Dep

thPh

oton

En

ergy

(k

eV)

1 cm

(“D

eep”

) 0.3

cm

(Len

s of E

ye)

0.007

cm

(“Sha

llow”

) 66

2 0.2

8 0.6

7 0.9

–N

ote:

The

con

vers

ion

fact

ors

for C

s-13

7 ha

ve

been

cha

nged

in th

is e

xam

ple

for

dem

onst

ratio

npu

rpos

es

7

dem

onst

ratio

n pu

rpos

es

Page 8: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Gam

ma

Dos

e C

alcu

latio

ns•

Dee

pdo

seeq

uiva

lent

rate

?D

eep

dose

equ

ival

ent r

ate?

D1

Ci

m0.

33R

mhr

Ci

0.28

rem R

0.09

rem

/hr

2

2

=⋅

−⋅

=m

hr-C

iR

2

•E

ye d

ose

equi

vale

nt ra

te?

D1

Ci

m0.

67R

mhr

-Ci

0.28

rem R

0.19

rem

/hr

2

2

=⋅

−⋅

=

•S

kin

dose

equ

ival

ent r

ate?

C

iR

mre

m2

8

D1

Ci

m0.

33R

mhr

-Ci

0.9re

m R0.

3 re

m/h

r2

=⋅

−⋅

=

Page 9: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Run

ning

the

TPA

C

ode

•TP

A C

ode

Fold

er S

truct

ure

9

Page 10: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Run

ning

the

TPA

C

ode

Mk

kidi

t•

Mak

e w

orki

ng d

irect

ory

d:\tpa5.1

>mkdir tparun

•S

et e

nviro

nmen

t var

iabl

esSET TPATEST=d:\tpa5.1

•C

opy

inpu

tfile

(tpa.inp)

tow

orki

ngdi

rect

ory

_p

SET TPA_DATA=d:\tpa5.1

Cop

y in

put f

ile (tpa.inp)

to w

orki

ng d

irect

ory

•R

edire

ctou

tput

from

scre

ento

filetpaout

copy ..\tpa5.1\tpa.inp

10

•R

edire

ct o

utpu

t fro

m s

cree

n to

file

tpa.out

d:\tpa5.1\tparun>..\tpa.exe >tpa.out

Page 11: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Run

ning

the

TPA

C

ode

•S

ampl

e O

utpu

t –R

epos

itory

Info

rmat

ion

pp

py

=======================================================================

exec: Welcome to TPA Version 5.1

Job started: Mon Jul 02 16:00:19 2007

=======================================================================

REPOSITORYDESIGNINFORMATION

REPOSITORY DESIGN INFORMATION

Subarea Area Waste Number of WP

# [m^2] [MTU]

1 224091.0 3025.5 526

2 448476.0 6108.4 1062

3 1241313.5 16703.3 2904

4775953

110313

01793

4 775953.1 10313.0 1793

5 605892.0 8351.7 1452

6 152357.0 1972.9 343

7 318122.0 4003.3 696

8 439350.0 5355.0 931

9 305880.0 4158.6 723

10 747165.5 10048.4 1747

Total Area [acre] = 1299.382289078371

Total Buried Waste [MTU] = 70040.00000000000

Repository AML [MTU/acre] = 53.90253552684494

Watts per MTU [W/MTU] = 1327.684245650000

11

p[

/]

Watts per linear meter of drift [W/m] = 1450.448314791551

Page 12: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Run

ning

the

TPA

C

ode

•S

ampl

e O

utpu

t –G

loba

l Par

amet

ers

pp

Specified Global Parameters:

Compliance Period = 10000.0 (yr)

Mi

Si

lti

Ti

100000(

) Maximum Simulation Time = 10000.0 (yr)

Number Of Realizations = 500

Number Of Subareas = 10

Volcanism scenario = 0 (yes=1, no=0)

Faulting scenario = 0 (yes=1, no=0)

Mechanicalfailurescenarios:

Mechanical failure scenarios:

Seismicity = 0 (yes=1, no=0)

Drift Degradation = 1 (yes=1, no=0)

Distance to Receptor Group = 18.0 (km)

**>>>CAUTION:CHECKINGOFNUCLIDESANDCHAINSISDISABLED<<<**

>>> CAUTION: CHECKING OF NUCLIDES AND CHAINS IS DISABLED <<<

**>>> You may not be using the standard chains specified <<<**

**>>> in the invent module. <<<**

**>>> (see "CheckNuclidesAndChains(yes=1,no=0)" in tpa.inp)<<<**

Thespecifiedpathfordata

=d:\ronj-\tpa51\

12

The specified path for data d:\ronj\tpa51\

The specified path for codes = d:\ronj-\tpa51\

Page 13: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Run

ning

the

TPA

C

ode

•S

ampl

e O

utpu

t –S

ubar

ea 1

Res

ults

pp

----------------------------------------------------------------------

subarea 1 of 10 realization 1 of 500

----------------------------------------------------------------------

exec: calling uzflow

UZFLOW:Uncertaintyparameter:

00000E+00

UZFLOW: Uncertainty parameter: 0.0000E+00

Mean Annual Infiltration at Start(AAI0): 1.1469E+01

exec: calling driftdriver

exec: calling nfenvFl

exec: calling dsfail

dataFile= dsfailt.dat

lli

hdi

(di

hild)

exec: calling mechdriver (drip shield)

exec: calling nfenv

exec: calling ebsfail

ebsfail: No Weld Failure

*** No WP Failure By Localized Corrosion ***

*** No WP Failure By General Corrosion Only ***

yy

exec: calling mechdriver (waste package)

exec: calling volcano

exec: failed WPs from INITIAL event = 1 at time = 0.0 yr

exec: failed WPs from VOLCANIC event = 525 at time = 487.6 yr

*** failed WPs: all WPs failed ( 526 ) ***

***driftdegradationfractionis1

000

***

13

*** drift degradation fraction is 1.000 ***

exec: calling ebsrel

ebsrel: running spent fuel waste form

ebsrel: running glass waste form

Page 14: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Run

ning

the

TPA

C

ode

•S

ampl

e O

utpu

t –S

ubar

ea 1

Res

ults

pp

Highest release rates from Sub Area 1

Tc99 2.2025E+00 [Ci/yr/SA] at 1.103E+03 yr

Ja241 6.7460E-01 [Ci/yr/SA] at 1.524E+03 yr

Am241

62201E01[Ci/yr/SA]at

1562E+03yr

Am241 6.2201E-01 [Ci/yr/SA] at 1.562E+03 yr

Ja243 3.9391E-01 [Ci/yr/SA] at 8.691E+03 yr

Am243 1.6704E-01 [Ci/yr/SA] at 8.691E+03 yr

Ni59 1.0217E-01 [Ci/yr/SA] at 3.076E+03 yr

exec: calling uzft

Highest release rates from UZ

Tc99 1.8862E+00 [Ci/yr/SA] at 1.562E+03 yr

Cs135 2.9505E-02 [Ci/yr/SA] at 5.308E+03 yr

Se79 1.2585E-02 [Ci/yr/SA] at 1.854E+03 yr

I129

75069E-03[Ci/yr/SA]at

1562E+03yr

I129 7.5069E03 [Ci/yr/SA] at 1.562E+03 yr

Cl36 4.3575E-03 [Ci/yr/SA] at 1.562E+03 yr

I129 4.5698E-03 [Ci/yr/SA] at 3.151E+03 yr

Cl36 2.6083E-03 [Ci/yr/SA] at 3.151E+03 yr

The remaining 28 nuclide(s) have zero release

14

Page 15: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Run

ning

the

TPA

C

ode

•S

ampl

e O

utpu

t –R

esul

ts a

t End

of

pp

Sim

ulat

ion

Highest annual dose from GS

Am241 1.4537E+02 [mrem/yr] at 4.876E+02 yr

Am243 1.6351E+01 [mrem/yr] at 4.876E+02 yr

Nb94 5.3678E+00 [mrem/yr] at 4.876E+02 yr

Pu240 5.2035E+00 [mrem/yr] at 4.876E+02 yr

Sn126 3.6009E+00 [mrem/yr] at 4.876E+02 yr

Pu239

27093E+00[mrem/yr]at

4876E+02yr

Pu239 2.7093E+00 [mrem/yr] at 4.876E+02 yr

exec: end realizations

exec: Peak Mean Dose is 5.62483E-01 rem/yr at 487.6 yr, based on

10 realizations.

exec: Run Successfully Completed

15

Page 16: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Gro

undw

ater

Dos

e 35

0 re

aliz

atio

ns

16

Page 17: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Gro

undw

ater

Dos

e 35

0 re

aliz

atio

ns

17

Page 18: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Was

te P

acka

ges

Faili

ng

18

Page 19: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

1,00

0,00

0 ye

ar ru

n 50

0 re

aliz

atio

ns

19

Page 20: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Ave

rage

Flo

w p

er

Bre

ache

d W

P

20

Page 21: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

Dos

e by

R

adio

nucl

ide

21

Page 22: Beta Dose Calculations • External beta dose rate not in ...Beta Dose Calculations • External beta dose rate not in contact with skin – Point Source, 10 mCi, distance of 0.1 m

WP

Tem

pera

ture

by

Suba

rea

22