NEUTRON CHARACTERISTICS ANALYSIS FOR VVER REACTOR LATTICE CALCULATIONS USING MCNP5 AND MCU_FREE CODES (PREPRINT IBRAE-2013-04)

Preprint IBRAE-2013-04

E.F. Mitenkova, Kizub P.A.,  Koltashev D.A.

On the basis of VVER-1000 reactor lattice calculations using MCNP5 and MCU_FREE codes, the comparative analysis results of basic neutronic characteristics (effective multiplication factor, neutron flux, reaction rates and acquisitions division) are discussed. Ensuring the correct calculation results is largely determined by the use of the adequate neutron source. Generation of guaranteed-stable and correct neutron source is shown by example of a symmetric FA calculation model.

Bibliographical reference

Mitenkova E. Neutron characteristics analysis for VVER reactor lattice calculations using MCNP5 and MCU_FREE codes / P.A. Kizub, D.A. Koltashev, E.F. Mitenkova— (Preprint / Nuclear Safety Institute RAS, October 2013, № IBRAE-2013-04). — Moscow : NSI RAS, 2013. — 23 p. — Bibliogr.: 12 items.