Neutron initiation probability in fast burst reactor

Conference · Sun Jul 01 04:00:00 EDT 2012

OSTI ID:22105755

Liu, X.; Du, J.; Xie, Q.; Fan, X. ^[1]

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1. Inst. of Nuclear Physics and Chemistry, China Academy of Engineering Physics, No.64, Mianshan Road, Mianyang, Sichuan (China)

Based on the probability balance of neutron random events in multiply system, the four random process of neutron in prompt super-critical is described and then the equation of neutron initiation probability W(r,E,{Omega},t) is deduced. On the assumption of static, slightly prompt super-critical and the two factorial approximation, the formula of the average probability of 'one' neutron is derived which is the same with the result derived from the point model. The MC simulation using point model is applied in Godiva- II and CFBR-II, and the simulation result of one neutron initiation is well consistent with the theory that the initiation probability of Godiva- II inverted commas CFBR-II burst reactor are 0.00032, 0.00027 respectively on the ordinary burst operation. (authors)

• Research Organization: American Nuclear Society, Inc., 555 N. Kensington Avenue, La Grange Park, Illinois 60526 (United States)
• OSTI ID: 22105755
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
APPROXIMATIONS
FISSION
NEUTRONS
PROBABILITY
PULSED REACTORS
RANDOMNESS
REACTOR OPERATION
SIMULATION