Program GROUPIE (version 79-1): calculation of Bondarenko self-shielded neutron cross sections and multiband parameters from data in the ENDF/B format

Technical Report · Fri Jul 04 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6753162· OSTI ID:6753162

Cullen, D E

Program GROUPIE reads evaluated data in the ENDF/B format and uses these data to calculate Bondarenko self-shielded cross sections and multiband parameters. To give as much generality as possible, the program allows the user to specify arbitrary energy groups and an arbitrary energy groups and an arbitrary energy-dependent neutron spectrum (weighing function). To guarantee the accuracy of the results, all integrals are performed analytically; in no case is iteration or any approximate form of integration used. The output from this program includes both listings and multiband parameters suitable for use either in a normal multigroup transport calculation or in a multiband transport calculation. A listing of the source deck is available on request.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6753162
• Report Number(s): UCRL-50400(Vol.17)(Pt.D); TRN: 81-001579
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COMPUTER CODES
G CODES
NEUTRON TRANSPORT THEORY
MULTIGROUP THEORY
COMPUTER CALCULATIONS
CROSS SECTIONS
NEUTRON SOURCES
NEUTRON SPECTRA
SELF-SHIELDING
PARTICLE SOURCES
RADIATION SOURCES
SHIELDING
SPECTRA
TRANSPORT THEORY
654003* - Radiation & Shielding Physics- Neutron Interactions with Matter
990200 - Mathematics & Computers