BUCKLING AND REACTION RATE EXPERIMENTS IN PLUTONIUM/URANIUM METAL FUELLED. SRAPHITE MODERATED LATTICES AT TEMPERATURES UP TO 4O0°CnPART I Experimental techniques and results

摘要

This report presents experimental measurements of buoklings, flux fine structure and fission rate distributions in graphite moderated lattices fuelled with plutonium/uranium metal at temperatures up to 400℃ in the sub-critical assemblies SCORPIO I and SCORPIO II. The experimental techniques employed are described in some detail. The accuracy of the experimental measurements appears to be adequate for testing methods of calculation being developed for the cal¬culation;of reactivity and temperature coefficient of reactivity for power reactors containing plutonium and uranium.