Studies on gas release from pre-saturated samples on a plasma beam installation

Abstract

We conducted methodological studies to evaluate the possibility of conducting experiments on gas release
from pre-saturated samples on a plasma-beam installation. One of the tasks of obtaining reliable data on
the parameters of the interaction of hydrogen isotope ions with materials of the NNR is to conduct
methodically correct post-test experiments on the study of gas release from the investigated samples
subjected to ion irradiation. The paper presents three stages of research. In the first stage, experiments were
con-ducted on saturation and gas release with the sample from tungsten. At the second stage, experiments
were performed with a tungsten sample on saturation with its deuterium and degassing under stepwise
heating conditions. At the third stage, experiments were conducted on gas release with vanadium samples,
with maximum sensitivity for dissolved gas in the sample. The results of calculations of the temperature
field on the sample are presented. It is shown that, on the whole, it reflects the experimentally observed
effect on a significant sample temperature gradient.