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Our Objective : An Ideal Situation of the Summation Calculation of the FP Decay Heat. Summation Calculation of FP Decay Heat. λ i. E i β. N i. P β （ｔ） =. ∑. (β -ray Component ). P γ （ｔ） =. ∑. λ i. N i. E i γ. (γ -ray Component ). - PowerPoint PPT Presentation
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Our Objective :
An Ideal Situation of the Summation Calculation of the FP Decay Heat
Summation Calculation
FPDD based onNuclear Measurements
MeasuredDecay Heat
λi : Decay Constant
Eiβ, Ei
γ : Average β- and γ-ray energy per decay
∑ Eiβ (β-ray Component)
∑ (γ-ray Component)
Pβ （ｔ） =
Pγ （ｔ） =
λi Ni
λi Ni Eiγ
Summation Calculation of FP Decay Heat
Early Stage of the FPDD File Development In the end of 1970’s : JNDC(JENDL), UKPFDD,ENDF-B
FPDDfromDecay Schemes
Summation Calculation
MeasuredDecay Heat
Theory FPDDfromDecay Schemes
Improvement Achieved byIntroduction of Beta-decay Theory
JENDL, ENDF/B-V,-VI
Gross Theory of Beta-decay
U235, Beta U235, Gamma
0.1
0.3
0.5
0.7
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)
JEF2.2(Europe,1994)
JEFF3.1(Europe,2005)
ENDF/B-VI(USA,1990)
Pu-239 Beta
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.2
0.3
0.4
0.5
0.6
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)JEF2.2(Europe,1994)
JEFF3.1(Europe,2005)ENDF/B-VI(USA,1990)
Pu-239 Gamma
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.4
0.6
0.8
1.0
1.2
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)JEF2.2(Europe,1994)
JEFF3.1(Europe,2005)ENDF/B-VI(USA,1990)
Pu-239 Total
ÅõÅ@YayoiņÅ@ORNL
0.1
0.3
0.5
0.7
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)JENDL+TAGSJEFF3.1(Europe,2005)JEFF3.1+TAGS
Pu-239 Beta
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.2
0.3
0.4
0.5
0.6
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)JENDL+TAGSJEFF3.1(Europe,2005)JEFF3.1+TAGS
Pu-239 Gamma
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.4
0.6
0.8
1.0
1.2
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)JENDL+TAGSJEFF3.1(Europe,2005)JEFF3.1+TAGS
Pu-239 Total
ÅõÅ@YayoiņÅ@ORNL
0.1
0.3
0.5
0.7
0.9
1 10 100 1,000 10,000Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)
JEF2.2(Europe,1994)
JEFF3.1(Europe,2005)
ENDF/B-VI(USA,1990)
U-235 Beta
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.2
0.3
0.4
0.5
0.6
0.7
0.8
1 10 100 1,000 10,000Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)
JEF2.2(Europe,1994)
JEFF3.1(Europe,2005)
ENDF/B-VI(USA,1990)
U-235 Gamma
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000)
JEF2.2(Europe,1994)
JEFF3.1(Europe,2005)
ENDF/B-VI(USA,1990)
U-235 Total
ÅõÅ@YayoiņÅ@ORNL
0.1
0.3
0.5
0.7
0.9
1 10 100 1,000 10,000Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)
JENDL(Japan,2000) JEFF3.1(Europe,2005)
JENDL+TAGS JEFF3.1+TAGS
U-235 Beta
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.2
0.3
0.4
0.5
0.6
0.7
0.8
1 10 100 1,000 10,000Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)JENDL(Japan,2000) JEFF3.1(Europe,2005)
JENDL+TAGS JEFF3.1+TAGS
U-235 Gamma
ÅõÅ@YayoiÅ¢Å@LowellņÅ@ORNL
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1 10 100 1,000 10,000
Time after Fission Burst (s)
Decay Heat t*f(t) (Mev/Fission)JENDL(Japan,2000) JEFF3.1(Europe,2005)
JENDL+TAGS JEFF3.1+TAGS
U-235 Total
ÅõÅ@YayoiņÅ@ORNL
Summation Calculation
MeasuredDecay Heat
Theory FPDDfromDecay Schemes
FPDDfromDecay Schemes
JEFF3.1 may be a good basisfor introduction of the future TAGS data
INEL TAGS
FPDDfromDecay Schemes
Gap to be filledby future TAGS
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