标题：Applying Positron Annihilation Spectroscopy Methods in Nuclear Technology II. Studies Into the Structural Materials of the Nuclear Reactor Core Using the Annihilation Photon Angular Distribution Method (APAD)
摘要：This article provides the findings of an experimental study into steels utilized in the nuclear industry, which employed the positron annihilation spectroscopy method (APAD). The processing and comparison of the experimental data with literary data helped identify vacancy defects, including those caused by neutron irradiation, and determine their dimensions.
