nuclear data sensitivity tool (ndast) with cielo xs€¦ · compare endf/b-vii.1 vs predicted cielo...
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![Page 1: Nuclear Data Sensitivity Tool (NDaST) with CIELO XS€¦ · Compare ENDF/B-VII.1 vs predicted CIELO XS changes Load ENDF/B-VII.1 Van der Marck data into DICE Union of Van der Marck](https://reader033.vdocuments.net/reader033/viewer/2022050115/5f4c6f8332c1192a03791aee/html5/thumbnails/1.jpg)
© 2016 Organisation for Economic Co-operation and Development
Nuclear Data Sensitivity Tool
(NDaST) with CIELO XS
Presenter: Ian Hill WPEC Meetings Date: May 2016
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© 2016 Organisation for Economic Co-operation and Development © 2016 Organisation for Economic Co-operation and Development 2
Overview Compare ENDF/B-VII.1 vs predicted CIELO XS changes
Load ENDF/B-VII.1 Van der Marck data into DICE
Union of Van der Marck data (~2000 benchmarks) and DICE sensitivity data (~4000 benchmarks) is ~1500 benchmarks. [limited to SDF with 238 EG]
Processed ENDF/B-VII.1 and CIELO XS with both NJOY99.393 (bad), NJOY2012.
Load PENDF (prior to ACER) files into JANIS, take ratio of CIELO/ENDFBVII.1 XS in JANIS (collapse to 238 energy groups)
Multiply XS ratio to XS sensitivity
Impact of each isotope/reaction change
Only looking at MT2,MT4,MT18,MT102,MT452,CHI (slightly)
No MF4!
Can also provide Excel tables
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© 2016 Organisation for Economic Co-operation and Development © 2016 Organisation for Economic Co-operation and Development 3
Nuclear Data Sensitivity Tool (NDaST) Flowchart
Select / load benchmarks Sensitivities (S) & C/E data
DICE IDAT
Personal Numerical Benchmarks
User Input Perturbation (P) isotope/reaction/energy
cross section
S*P Δkeff for selected cases
C/E output plot grouped by criteria
Covariance data via JANIS (C) Built in processed data for
major libraries Load personal (coverx)
M energy groups (fixed)
S*C*ST
UC(XS) for selected cases
Additional uncertainty on output plot grouped
by criteria
Matrix plot showing individual contribution
to UC(XS) by isotope-reaction
AND/OR
JANIS MF33: ENDF/B-VII.1 = 2138 files, JEFF-3.2 = 5688 files JENDL-4.0 = 2155 files
TENDL-2013 = 77811 files
Benchmarks (Sensitivities) Nuclear Data (% Change or Covariance) Integral Results
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© 2016 Organisation for Economic Co-operation and Development
Benchmark Set
THERM INTER FAST MIXED PU 362/608 5/10 86/121 9/9 HEU 530/895 20/32 121/403 27/84 IEU 22/180 6/21 15/43 0/23 LEU 472/1612 0/0 0/1 0/5 U233 56/197 0/29 10/10 0/8 MIX 134/436 0/7 40/67 0/26 SPEC 0/0 0/0 0/20 0/0
Union of SVM and DICE
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© 2016 Organisation for Economic Co-operation and Development
Pu239
pu239lanl23cnu8
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© 2016 Organisation for Economic Co-operation and Development
Pu239 MT2 CIELO/ENDFBVII.1
Largest impact is on intermediate spectrum Pu239 benchmarks, but only ~-15 pcm!
These graphs are always the ratio of CIELO to ENDF/B-VII.1 in 238 groups, taken by loading a PENDF into JANIS
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Pu239 MT2 Summary
• Shaded blue is benchmark uncertainty (RMS)
• STDEV bars are variation with a category
Red is always ENDF/B-VII.1 Blue is always CIELO Th
is A
xis i
s alw
ays C
/E
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© 2016 Organisation for Economic Co-operation and Development
Pu239-MT18 CIELO/ENDFBVII.1
Noticeable change: PU-INTER can move by +1700 pcm or -400 pcm PU-THERM can move by +500 pcm
THERM
INTER <100 eV
INTER >100 eV
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© 2016 Organisation for Economic Co-operation and Development
Pu239-MT18 CIELO/ENDFBVII.1
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Pu239-MT18 Intermediate Spectrum HECTOR ZPR-6
BFS
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Pu239-MT18 THERM Benchmarks
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© 2016 Organisation for Economic Co-operation and Development
Pu239-MT102 CIELO/ENDFBVII.1
Noticeable change: PU-THERM can move by +500 pcm
INTER 1eV-10 eV
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© 2016 Organisation for Economic Co-operation and Development
Pu239-MT102 CIELO/ENDFBVII.1
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Pu239 MT102 THERM Benchmarks
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Pu239-MT452 CIELO/ENDFBVII.1
Noticeable change: PU-THERM can move by -200 pcm
THERM
Low Inter
Medium Inter
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Pu239-MT452 Summary
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Pu239-PNFS CIELO/ENDFBVII.1
SDF not a function of Ein!
Below 4.5 MeV Incident Energy
Above 4.5 MeV Incident Energy (softer spectrum)
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© 2016 Organisation for Economic Co-operation and Development
Impact of CHI @ Incident Energy 5.5 MeV
For PMF001 using CHI @ Ein=5.5 MeV, difference is +50 pcm. Only 5% of fissions are above 5.5 MeV, so ~5 pcm impact.
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Pu239, Sum of MF18,MT102,MF452
Red ENDF/B-VII.1 Blue Sum, CIELO
MT102 MT18 MT452
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U235
u235ib06ao17g6cnu5cf2.endf THERM INTER FAST MIXED HEU 530/895 20/32 121/403 27/84 IEU 22/180 6/21 15/43 0/23 LEU 472/1612 0/0 0/1 0/5
MIX 134/436 0/7 40/67 0/26
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© 2016 Organisation for Economic Co-operation and Development
U235 MT2 CIELO/ENDFBVII.1
Fast benchmarks increase Changes to thermal benchmarks are small
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U235 MT2 CIELO/ENDFBVII.1
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U235 MT2 CIELO/ENDFBVII.1 HMF Benchmarks
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U235 MT4 CIELO/ENDFBVII.1 HMF-001 Moves HMF -400 pcm.
Compensates MT2 shift
Decreasing MT4
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U235 MT4 CIELO/ENDFBVII.1
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U235 MT4 CIELO/ENDFBVII.1 HM-F/M
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U235 MT18 CIELO/ENDFBVII.1
THERM INTER
THERM +500 pcm (Max)
NJOY99
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U235 MT18 CIELO/ENDFBVII.1
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U235 MT18 CIELO/ENDFBVII.1 HEU/IEU-MET-INTER/MIXED
ZEUS
RockyFlats Oil
Reflected Spheres ORNL
Metal Slabs CH2
Reflected
ZPR-9 (SS Refl)
ORNL Metal
Slabs CH2 Reflected
LANL Cubes in
Water
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U235 MT18 CIELO/ENDFBVII.1 HEU-SOL-THERM
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U235 MT102 CIELO/ENDFBVII.1 Low Inter
High Inter
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U235 MT102 CIELO/ENDFBVII.1
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U235 MT102 CIELO/ENDFBVII.1
RockyFlats Oil
Reflected Spheres
ZEUS ORNL Metal Slabs
CH2 Reflected
ZPR-9 (SS Refl)
ORNL Metal
Slabs CH2 Reflected
LANL Cubes in
Water
![Page 34: Nuclear Data Sensitivity Tool (NDaST) with CIELO XS€¦ · Compare ENDF/B-VII.1 vs predicted CIELO XS changes Load ENDF/B-VII.1 Van der Marck data into DICE Union of Van der Marck](https://reader033.vdocuments.net/reader033/viewer/2022050115/5f4c6f8332c1192a03791aee/html5/thumbnails/34.jpg)
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U235 MT452 CIELO/ENDFBVII.1
Intermediate spectrum
Thermal Fast
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U235 MT452 CIELO/ENDFBVII.1
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U235 TOTAL (sum MT2,MT4,MT18,MT102,MT452)
Red ENDF/B-VII.1 Blue CIELO Sum
MT452 MT102 MT18
MT2 MT4
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U235 TOTAL for HMF (sum MT2,MT4,MT18,MT102,MT452)
Red ENDF/B-VII.1 Blue CIELO Sum
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U238
u238ib46rjFs THERM INTER FAST MIXED IEU 22/180 6/21 15/43 0/23 LEU 472/1612 0/0 0/1 0/5
MIX 134/436 0/7 40/67 0/26
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U238 MT2 CIELO/ENDFBVII.1
Integral experiments are generally insensitive
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U238 MT2 CIELO/ENDFBVII.1
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U238 MT2 CIELO/ENDFBVII.1 LEU
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U238 MT4 CIELO/ENDFBVII.1
Integral experiments are generally insensitive
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U238 MT4 CIELO/ENDFBVII.1
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Raises IEU benchmarks up to + 300 pcm Other benchmarks are mostly not impacted
U238 MT18 CIELO/ENDFBVII.1
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U238 MT18 CIELO/ENDFBVII.1
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U238 MT18 CIELO/ENDFBVII.1 (IEU-INTER/FAST)
Big Ten ZPR-3
ZPR-6/9
ZPR-6 6A
ZPR-9 2,3
ZPR-9 1
LANL Mix of Nat+
Enriched U Plates
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U238 MT102 CIELO/ENDFBVII.1
Raises IEU benchmarks up to + 150 pcm Other benchmarks are mostly not impacted
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U238 MT102 CIELO/ENDFBVII.1
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U238 MT102 CIELO/ENDFBVII.1 (FAST/INTER)
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U238 MT102 CIELO/ENDFBVII.1 LCT
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No Difference
U238 MT452 CIELO/ENDFBVII.1
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U238 Total (MT2,MT4,MT18,MT102,MT452)
Red ENDF/B-VII.1 Blue CIELO Sum
MT102 MT18
MT2 MT4
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Total (MT2,MT4,MT18,MT102) IEU and LEU, INTER/FAST
MT102 MT18
MT2 MT4
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Total (MT2,MT4,MT18,MT102) LCT
MT102 MT18
MT2 MT4
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Fe56
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O16
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H1
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Conclusion Impact of individual changes to
MT2,MT4,MT18,MT102,MT452 were tested for Pu239, U235, U238
Relatively quick (~1 day of effort), automation could/will be improved
Method could be used by anyone (although training would be required probably)
Meant to supplement not replace direct perturbation testing!
http://www.oecd-nea.org/ndast/