Validation of the CSAS25 module of SCALE: Part 1, Highly enriched uranium solutions

Technical Report · Mon Jul 01 00:00:00 EDT 1991

OSTI ID:10146342

Palmer, B M; Crawford, C

Six sets of critical experiments have been modeled and an effective multiplication factor, k{sub eff}, calculated for each experiment. Each of the experiments used either uranyl nitrate or uranyl fluoride solution as the fissile material. The calculations of k{sub eff} were performed using the CSAS25 module of SCALE 4. The CSAS25 module is made up of three distinct programs, BONAMI-II, NITAWL-II, and KENO V.a. BONAMI-II and NITAWL-II are cross section manipulation routines capable of adjusting cross sections to take into account effects due to temperature, geometry, and composition. KENO V.a. is a monte carlo program that determines k{sub eff} using the adjusted cross sections. Three cross section libraries available in SCALE were used for this study, the 16 group Hansen-Roach, the 27 group ENDF/B-IV, and the 123 group Gam-Thermos.

• Research Organization: Westinghouse Idaho Nuclear Co., Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC07-84ID12435
• OSTI ID: 10146342
• Report Number(s): WINCO--1116; ON: DE93012542
• Country of Publication: United States
• Language: English

Related Subjects

050800
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
42 ENGINEERING
420203
99 GENERAL AND MISCELLANEOUS
990200
AQUEOUS SOLUTIONS
C CODES
CRITICALITY
CROSS SECTIONS
FISSILE MATERIALS
HANDLING EQUIPMENT AND PROCEDURES
HIGHLY ENRICHED URANIUM
IDAHO NATIONAL ENGINEERING LABORATORY
MATHEMATICS AND COMPUTERS
MULTIPLICATION FACTORS
S CODES
SPENT FUELS REPROCESSING
URANYL FLUORIDES
URANYL NITRATES