ANPP CODE DEVELOPMENT PROGRAM, PRESSURIZED WATER TASK PROGRESS REPORT NUMBER NINE. Period covered: August 1, 1961 to January 31, 1962

Technical Report · Thu Feb 01 04:00:00 EST 1962

OSTI ID:4821557

Colbeth, E A; Hubner, R S; Schweller, D; Welshans, L; Wenstrup, F D; Olsen, T M

The coding of the remaining depletion subroutines of SYBURN and the changes in the transport subroutines in TTHEOR to permit a criticality search were finished. The modified version of CELCOR that includes the effects of leakage from adjacent regions in calculating the multigroup source terms was checked out. A comparison was made of two-dimensional P1 and DSN theory results. The relative rates of convergence, running times, amd accuracy were studied. The GAM code was revised to permit it to read thermal cross sections from the data/ ape and/o write the SYBURN few-group constants on a binary tape. GAM-22, a 22- group version of the GAM program, was coded, compiled, and checked out. A code was written to compile and/or modify a nuclear data library tape to be used by GAM-type codes as thermal and fast cross section input. A code, RESINT, that uses experimental resonance integral data in improving the absorption and fission cross sections processed by CSDP was written and checked out. Critical experiments were carried out, and the cores analyzed by computer programs. (M.C.G.)

• Research Organization: Martin Co. Nuclear Div., Baltimore
• NSA Number: NSA-16-023271
• OSTI ID: 4821557
• Report Number(s): MND-C-2208
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
BURNOUT
CRITICALITY
CROSS SECTIONS
DIFFERENTIAL EQUATIONS
ERRORS
FAST NEUTRONS
FISSION
GROUP THEORY
LOSSES
POWER PLANTS
PRESSURE
PROGRAMMING
REACTOR CORE
REACTOR TECHNOLOGY
REACTORS
RECORDING SYSTEMS
RESONANCE ESCAPE PROBABILITY
THERMAL NEUTRONS
TRANSPORT THEORY
WATER COOLANT
WATER MODERATOR
ZONES