Email this article On the Trapping and Retention of Hydrogen Isotopes in Graphite under Sequential Hydrogen Plasma Irradiation
- Authors: Ayrapetov A.A.1, Begrambekov L.B.1, Dovganyuk S.S.1, Kaplevsky A.S.1
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Affiliations:
- National Research Nuclear University “MEPhI”
- Issue: Vol 12, No 3 (2018)
- Pages: 558-563
- Section: Article
- URL: https://journals.rcsi.science/1027-4510/article/view/195475
- DOI: https://doi.org/10.1134/S1027451018030217
- ID: 195475
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Abstract
The results of studying the trapping and retention of hydrogen and deuterium in MPG-8 graphite under sequential irradiation with ions of deuterium and hydrogen plasma are presented. The effect of the energy and density of the hydrogen-ion flux, the impurity of oxygen in the plasma, and the temperature of the irradiated samples on a decrease in the deuterium concentration and hydrogen trapping in graphite is studied. Based on the analysis of experimental data, it is suggested that the observed effect of deuterium removal can be explained by the chemical sputtering of graphite.
About the authors
A. A. Ayrapetov
National Research Nuclear University “MEPhI”
Author for correspondence.
Email: lexxair@plasma.mephi.ru
Russian Federation, Moscow, 115409
L. B. Begrambekov
National Research Nuclear University “MEPhI”
Email: lexxair@plasma.mephi.ru
Russian Federation, Moscow, 115409
S. S. Dovganyuk
National Research Nuclear University “MEPhI”
Email: lexxair@plasma.mephi.ru
Russian Federation, Moscow, 115409
A. S. Kaplevsky
National Research Nuclear University “MEPhI”
Email: lexxair@plasma.mephi.ru
Russian Federation, Moscow, 115409
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