Energy-Dependent Behavior of Intrinsic Close-Pair Defects within Copper

Abstract

The low-temperature substages of high purity copper, which are associated with close-pair Frenkel defects, have been measured following 2-Mev electron irradiations. Results are in the region of multiple defect production and show that a correlation exists between prior experimental work performed by lower energy electron and 10-Mev deuteron bombardments. It is evident that each intrinsic substage possesses a very definite dependence upon irradiation energy.