The ENEA-Bologna Nuclear Data Group produced the MATJEF22.BOLIB multigroup coupled (199 n + 42 gamma) cross section library in MATXS format, based on the JEF-2.2 European nuclear data file. MATJEF22.BOLIB was produced, using the MATXSR module of the NJOY-94.66 data processing system, from the same GENDF cross section data files used to produce the ENEA-Bologna VITJEF22.BOLIB multigroup library in AMPX format for nuclear fission applications. These ENEA-Bologna libraries can be considered as European counterparts of the VITAMIN-B6 American library, based on the ENDF/B-VI Release 3 nuclear data file. MATJEF22.BOLIB is a pseudo-problem-independent library based on the Bondarenko (f-factor) method for the treatment of neutron resonance self-shielding and temperature effects. The library contains 133 nuclides processed at 4 temperatures (300 °K, 600 °K, 1000 °K and 2100 °K), obtained for the most part with 6 to 8 values for the background cross section. Thermal scattering cross sections were processed at all temperatures available in the JEF-2.2 thermal scattering law data file for 5 additional bound nuclides (H-l in light water, H-l in polyethylene, H-2 in heavy water, C in graphite and Be in beryllium metal). Collapsed working libraries of self-shielded cross sections in the formats used by the deterministic codes of the DANTSYS or DOORS systems can be generated from MATJEF22.BOLIB, through further data processing with the TRANSX code.

MATJEF22.BOLIB - A JEF-2.2 MULTIGROUP COUPLED (199 n + 42 gamma) CROSS SECTION LIBRARY IN MATXS FORMAT FOR NUCLEAR FISSION APPLICATIONS

Pescarini, M.
2004-06-06

Abstract

The ENEA-Bologna Nuclear Data Group produced the MATJEF22.BOLIB multigroup coupled (199 n + 42 gamma) cross section library in MATXS format, based on the JEF-2.2 European nuclear data file. MATJEF22.BOLIB was produced, using the MATXSR module of the NJOY-94.66 data processing system, from the same GENDF cross section data files used to produce the ENEA-Bologna VITJEF22.BOLIB multigroup library in AMPX format for nuclear fission applications. These ENEA-Bologna libraries can be considered as European counterparts of the VITAMIN-B6 American library, based on the ENDF/B-VI Release 3 nuclear data file. MATJEF22.BOLIB is a pseudo-problem-independent library based on the Bondarenko (f-factor) method for the treatment of neutron resonance self-shielding and temperature effects. The library contains 133 nuclides processed at 4 temperatures (300 °K, 600 °K, 1000 °K and 2100 °K), obtained for the most part with 6 to 8 values for the background cross section. Thermal scattering cross sections were processed at all temperatures available in the JEF-2.2 thermal scattering law data file for 5 additional bound nuclides (H-l in light water, H-l in polyethylene, H-2 in heavy water, C in graphite and Be in beryllium metal). Collapsed working libraries of self-shielded cross sections in the formats used by the deterministic codes of the DANTSYS or DOORS systems can be generated from MATJEF22.BOLIB, through further data processing with the TRANSX code.
Rapporto tecnico;Fisica nucleare;Dati nucleari;Fisica dei reattori nucleari
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/6991
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