Gadolinia depletion analysis by CASMO-4

Conference · Fri Jan 01 04:00:00 EST 1993 · Transactions of the American Nuclear Society; (United States)

OSTI ID:6911994

Kobayashi, Y; Saji, E ^[1]; Toba, A ^[2]

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1. Toden Software Inc., Tokyo (Japan)
2. Tokyo Electric Power Co. (Japan)

CASMO-4 is the most recent version of the lattice physics code CASMO introduced by Studsvik. The principal aspects of the CASMO-4 model that differ from the models in previous CASMO versions are as follows: (1) heterogeneous model for two-dimensional transport theory calculations; and (2) microregion depletion model for burnable absorbers, such as gadolinia. Of these aspects, the first has previously been benchmarked against measured data of critical experiments and Monte Carlo calculations, verifying the high degree of accuracy. To proceed with CASMO-4 benchmarking, it is desirable to benchmark the microregion depletion model, which enables CASMO-4 to calculate gadolinium depletion directly without the need for precalculated MICBURN cross-section data. This paper presents the benchmarking results for the microregion depletion model in CASMO-4 using the measured data of depleted gadolinium rods.

• OSTI ID: 6911994
• Report Number(s): CONF-931160--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 69
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220400* -- Nuclear Reactor Technology-- Control Systems
ACCURACY
BENCHMARKS
BHWR TYPE REACTORS
BURNABLE POISONS
BURNUP
C CODES
COMPARATIVE EVALUATIONS
COMPUTER CODES
CONTROL ELEMENTS
ELEMENTS
ENRICHED URANIUM REACTORS
EVALUATION
EXPERIMENTAL REACTORS
GADOLINIUM
HBWR REACTOR
HEAVY WATER COOLED REACTORS
HEAVY WATER MODERATED REACTORS
MATERIALS
METALS
NEUTRON ABSORBERS
NUCLEAR POISONS
PHYSICS
POWER REACTORS
RARE EARTHS
REACTOR COMPONENTS
REACTOR MATERIALS
REACTOR PHYSICS
REACTORS
RESEARCH AND TEST REACTORS
TANK TYPE REACTORS
THERMAL REACTORS