METHOD OF CALCULATING PARTICLE TRANSPORTATION, CALCULATION DEVICE AND PROGRAM, METHOD OF CALCULATING NUCLEAR CONSTANT, CALCULATION DEVICE AND PROGRAM, NUCLEAR REACTOR SIMULATION METHOD, NUCLEAR REACTOR SIMULATOR, AND NUCLEAR REACTOR SIMULATION PROGRAM

摘要

PPROBLEM TO BE SOLVED: To evaluate in a short time a nuclear constant of a fuel assembly having an optional shape and an optional size. PSOLUTION: A method of calculating particle transportation has a step (S3) of generating a low-discrepancy sequence, a step (S4) of designating the start point and the direction of ray tracing by the sequence, a step (S5) of ray tracing by using the start point and the direction and determining the locus of a particle, a step (S6) of generating a Green function of a transportation equation of the particle, and a step (S7) of solving a particle transportation Boltzmann equation by using the Green function and evaluating a particle distribution. The nuclear constant is generated from the particle distribution acquired thereby. PCOPYRIGHT: (C)2007,JPO&INPIT