IAEA1237 ZZ-BARC-75.
ZZ BARC-75, Coupled 50 Neutron-Group 25 Gamma-Group Cross-Section Library for 42 Nuclides
NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES
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| Program name | Package id | Status | Status date |
|---|---|---|---|
| ZZ-BARC-75 | IAEA1237/01 | Tested | 05-MAY-1992 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| IAEA1237/01 | DEC VAX 8810 |
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3. DESCRIPTION OF PROGRAM OR FUNCTION
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FORMAT: ANISN
NUMBER OF GROUPS: 50 neutron groups - 25 gamma-ray groups coupled cross section library.
NUCLIDES: H, He, Li, Be, B, C, N, O, Na, Mg, Al, Si, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, Pb, Th, Pa, U, Pu, Am, Cm.
ORIGIN: ENDFB-IV for neutrons and DLC-7E data for photons.
WEIGHTING SPECTRUM: From 15 MeV to 0.00001 eV have been derived with a 1/E fission,1/4 thermal Maxwellian spectrum weighting option. A 1/E spectrum has been used between 15 MeV and 10 MeV and also between 674 keV and 0.1264 eV. The fission spectrum is taken between 10 MeV and 674 keV. Below 0.1264 eV, a Maxwellian spectrum is assumed.
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ZZ-BARC75 is a 50 neutron groups - 25 gamma groups coupled cross section library for 42 reactor nuclides. The group cross sections have been derived from evaluated ENDFB-IV cross sections for neutrons and DLC-7E data for photons. The library is well suited to carry out safety, shielding, and core physics studies of fission or fusion reactors. The data are also adequate for oil logging and mineral exploration investigations.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
FORMAT: ANISN
NUMBER OF GROUPS: 50 neutron groups - 25 gamma-ray groups coupled cross section library.
NUCLIDES: H, He, Li, Be, B, C, N, O, Na, Mg, Al, Si, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, Pb, Th, Pa, U, Pu, Am, Cm.
ORIGIN: ENDFB-IV for neutrons and DLC-7E data for photons.
WEIGHTING SPECTRUM: From 15 MeV to 0.00001 eV have been derived with a 1/E fission,1/4 thermal Maxwellian spectrum weighting option. A 1/E spectrum has been used between 15 MeV and 10 MeV and also between 674 keV and 0.1264 eV. The fission spectrum is taken between 10 MeV and 674 keV. Below 0.1264 eV, a Maxwellian spectrum is assumed.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
ZZ-BARC75 is a 50 neutron groups - 25 gamma groups coupled cross section library for 42 reactor nuclides. The group cross sections have been derived from evaluated ENDFB-IV cross sections for neutrons and DLC-7E data for photons. The library is well suited to carry out safety, shielding, and core physics studies of fission or fusion reactors. The data are also adequate for oil logging and mineral exploration investigations.
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4. METHOD OF SOLUTION
Neutron group cross sections over the energy range from 15 MeV to 0.00001 eV have been derived with a 1/E fission, 1/4 thermal Maxwellian spectrum weighting option. A 1/E spectrum has been used between 15 MeV and 10 MeV and also between 674 keV and 0.1264 eV. The fission spectrum is taken between 10 MeV and 674 keV. Below 0.1264 eV, a Maxwellian spectrum is assumed.
Photon interaction cross sections cover the energy range from 14 MeV to 1 keV and are derived with a flat flux weighting option. The scattering moments are computed from the Klein-Nishina equation. Total, coherent, pair production, and photo-electric cross sections are processed and included.
Neutron group cross sections over the energy range from 15 MeV to 0.00001 eV have been derived with a 1/E fission, 1/4 thermal Maxwellian spectrum weighting option. A 1/E spectrum has been used between 15 MeV and 10 MeV and also between 674 keV and 0.1264 eV. The fission spectrum is taken between 10 MeV and 674 keV. Below 0.1264 eV, a Maxwellian spectrum is assumed.
Photon interaction cross sections cover the energy range from 14 MeV to 1 keV and are derived with a flat flux weighting option. The scattering moments are computed from the Klein-Nishina equation. Total, coherent, pair production, and photo-electric cross sections are processed and included.
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IAEA1237/01, included references:
- S.B. Garg:BARC 75 - A 75 Group Neutron-Photon Coupled Cross-Section Library
with P5-Anisotropic Scattering Matrices
BARC-1531 (1990)
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IAEA1237/01
| File name | File description | Records |
|---|---|---|
| IAEA1237_01.001 | Information file | 37 |
| IAEA1237_01.002 | 75-group neutron-photon library part 1 | 8032 |
| IAEA1237_01.003 | 75-group neutron-photon library part 2 | 8790 |
| IAEA1237_01.004 | 75-group neutron-photon library part 3 | 6816 |
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- B. Spectrum Calculations, Generation of Group Constants and Cell Problems
- C. Static Design Studies
- J. Gamma Heating and Shield Design
- X. Magnetic Fusion Research
- Z. Data.
Keywords: ENDF/B, coupled neutron gamma cross sections, data library, reactor safety, shielding.