A Field Ion Microscope Study of Neutron Irradiated Tungsten

Abstract

Abstract A study of the damage introduced into tungsten by fast neutrons using field ion microscopy, is described. This consisted of examining the type of damage as reflected in the vacancy content of the material and the removal of the vacancy content after various annealing treatments. Evidence is presented which shows that vacancies are removed from tungsten in stage IV. The observations also indicate the presence of depleted zones in the irradiated tungsten.