fendl-3 njoy processing
DESCRIPTION
FENDL-3 NJOY processing. D. Lopez Aldama, R. Capote IAEA/NAPC Nuclear Data Section. NJOY-99.364 patches. The FENDL/E-3.0 evaluated nuclear data files were processed using the NJOY‑99.364+ modular code system with two local updates at IAEA-NDS . - PowerPoint PPT PresentationTRANSCRIPT
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FENDL-3 NJOY processing FENDL-3 NJOY processing
D. Lopez Aldama, R. Capote D. Lopez Aldama, R. Capote
IAEA/NAPC Nuclear Data Section IAEA/NAPC Nuclear Data Section
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2 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
NJOY-99.364 patchesThe FENDL/E-3.0 evaluated nuclear data files were processed using the NJOY‑99.364+ modular code system with two local updates at IAEA-NDS .
1) ACER: The update of ACER is a correction to the official update up360 included in the official release of NJOY-99.364
2) HEATR: Allows the processing of large sections for angular distributions in File 4 (MF4) as you find in some FENDL-3.0 evaluations.
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3 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
VERIFICATION OF “ACE” FILES
• ACE files were converted back to ENDF-6 format using the code ACELST [A. Trkov].
• The original evaluation was processed
using the PREPRO-2010 code system (LINEAR+RECENT+SIGMA1)
• The two ENDF-6 formatted files were compared using COMHARD
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4 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
Problems with fission cross sectionU-235 and U-238
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5 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
Inconsistencies found between MT=18 and MT=19,20,21,38
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6 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
Rh-103
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7 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
Rh-103
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8 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
I-127
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9 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
I-127
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10 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
U-238
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11 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
Other issues
• Derived cross section data from MT=200-208 were found for all the isotopes of titanium (Ti), bromine (Br), zirconium (Zr), niobium (Nb), molybdenum (Mo) and hafnium (Hf): It is not recommended to include these derived data into primary evaluations, therefore derived reactions from MT=200 up to MT=450 were deleted.
• It was detected that the transition probability data in case of Nb-93 were omitted for MT = 51 in File 12 (MF=12). The data were included using the code chmf35
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12 FENDL-3 3rd RCM D. Lopez Aldama & R Capote, Vienna, Austria IAEA NAPC-Nuclear Data NJOY processing
NJOY main warnings
• Evaluations for H-3 and He-4 do not have photon production data.• For several evaluations File 6 (MF = 6) is used, although incomplete:
the energy distribution is not given for the recoil nucleus. NJOY-99 applied one particle approximation in these cases.
• For Li-6, Li-7, Be-9, B-10, C-12, N-14, N-15, F-19, Na-23, Mg-24,-25,-26, Cl-35,-37, Ti- 46, -47, -48, 49, -50, Co-59, Br-79,-81, Zr-92, -94, -96, Nb-93, Mo-92, -94, -95, -96, -97,-98, -100, Ag-107, Cd-106, Cd-111, Er-162,-164,-166, -167, -168, -170, Hf-174, -176, -177, -178, -179, -180, Ta-181, Au-197, U-235, -238 discontinuities were found in the gamma files. Corrective action was done by NJOY-99
• For Br-81, Mo-92, -94, -95, -96, -97, -98 and Hf-180 problems were found with the sum of the photon production. Re-normalization was applied as corrective action by NJOY-99.