SNARE - A response matrix based few-group nonlinear reactor code in hexagonal geometry

The global reactor equations include the neutron-balance and the continuity of neutron flux and current at the interfaces. The SNARE code was developed to treat this nonlinear problem. SNARE solves a nonlinear neutron balance equation in hexagonal geometry utilizing a modified finite difference algorithm. The coefficients are the functions of the solution through 'gamma' response matrices getting from cell transport-calculations. Instead of traditional few-group constants the code needs these response matrices which had been defined in GDKM model developed in KFKI. (author) 8 refs.; 1 fig.; 1 tab