Recovery of Fast Neutron Irradiated Niobium and Vanadium at Low Temperature

概要

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The recovery structures of Nb and V after fast neutron irradiation near liquid helium temperature are determined. The effects of radiation doping, impurity doping and deformation before the low temperature irradiation on the recovery stages are investigated. Impurities appear to suppress the recovery stage at 45 K (the 45 K stage) and enhance the 70 K stage for Nb and similarly suppress the 50 K stage and enhance the 72 K stage for V. The enhancement of stage I by radiation doping at room temperature was observed in Mo and W in the previous experiments, but it is not seen in Nb and V. These results suggest the following temperature ranges for the recovery stages: stage I (below 50 K) and stage III (∼220 K) for Nb, and stage I (below 60 K) and stage III (∼170 K) for V.
社団法人日本物理学会の論文
1973-09-05