EFFECT OF REFLECTOR MATERIAL ON NEUTRON CALCULATION OF MEU RESEARCH REACTOR

Effect of different reflector material like graphite, beryllium on core excess reactivity and multigroup neutron fluxes have been studied using standard computer codes Wims –D4 Daixy. Four energy groups, x-y calculation have reflected on two opposite faces by single row of the graphite / beryllium reflector. The core reflected by single row of graphite and beryllium has a percentage excess reactivity of (14.6) and (16.8) respectively