NEUTRON SOURCE FOR LOOSELY-COUPLED SYSTEMS IN MONTE-CARLO CRITICALITY CALCULATION (PREPRINT IBRAE-2015-02)

Preprint IBRAE-2015-02

Kizub P.A., Mitenkova E.F. 

The neutron source correctness has a special significance in neutronic calculations using Monte Carlo methods. For supercritical and subcritical systems the evolution of neutron source is investigated for different calculation parameters. Stability and sensitivity of neutron source to variations of statistical parameters are analyzed for loosely-coupled systems and pin-cells. The calculation dominance ratios for pin-cells are obtained by fission matrix and noise propagation matrix methods using TDMCC program. The comparison of dominance ratio values is presented.

Bibliographical reference

Kizub P.A., Mitenkova E.F.  NEUTRON SOURCE FOR LOOSELY-COUPLED SYSTEMS IN MONTE-CARLO CRITICALITY CALCULATION  — Preprint IBRAE RAS IBRAE-2015-02. — Moscow : NSI RAS, 2015. — 30 p. — Bibliogr.: 11 items.