SOPHIST II--A GROUP CROSS SECTION IBM 700/7090 CODE

Technical Report · Mon May 21 00:00:00 EDT 1962

OSTI ID:4766350

Canfield, E H; Pettibone, J

>SOPHIST Il is an IBM 709/7090 code, compatible with Monitor, which calculates temperature-dependent fluxweighted group cross sections for use in multigroup neutronic calculations. The moderator model is a Maxwell gas. The input flux spectrum is specified analytically and/or pointwise. The input cross- section data can be analytic l/v, a series of single-level Breit Wigner resonances, pointwise, and/or a pointwise deviation from l/v. An optional feature allows for self-shielding in absorbing foils. The code allows 90 energy groups, 131 pointwise fluxes, 100 resonances, and 400 (minus the number of resonances) pointwise cross sections. (auth)

• Research Organization: California. Univ., Livermore. LAwrence Radiation Lab.
• DOE Contract Number: W-7405-ENG-48
• NSA Number: NSA-16-031058
• OSTI ID: 4766350
• Report Number(s): UCRL-6912
• Country of Publication: United States
• Language: English

Related Subjects

AMMONIA
ANIONS
BREIT-WIGNER FORMULA
CROSS SECTIONS
DECOMPOSITION
DIGITAL SYSTEMS
FOILS
IBM 709
IBM 7090
INTERMETALLIC COMPOUNDS
LEAD ALLOYS
LEAD COMPOUNDS
LIQUIDS
METALS
MODERATORS
NEUTRON FLUX
NEUTRONS
NUMERICALS
PHASE DIAGRAMS
PHYSICS
PROGRAMMING
RESONANCE
SCATTERING
SHIELDING
SODIUM ALLOYS
TIN ALLOYS
TIN COMPOUNDS
TIN OXIDES