NDLI: Impurity reduction in a plasma by using the deuterium and helium glow discharge method

Content Provider	Springer Nature Link
Author	Kim, Jaeyong Lee, Sangyong
Copyright Year	2015
Abstract	To reduce the levels of impurities such as water, oxygen and nitrogen in a plasma chamber, we evaporated and deposited carborane (C$_{2}$B$_{10}$H$_{12}$) powders on a silicon substrate by using a glow discharge method, and investigated the effects of boronization as functions of the carborane temperature and the rates of the flowing gases between deuterium and helium. The reduced amount of impurities after boronization was estimated by measuring the partial pressures of the corresponding gases in the chamber and the concentrations of nitrogen and oxygen in a deposited carborane film. The ratio of deuterium to hydrogen in the deposited film was analyzed by using secondary ion mass spectrometry (SIMS). When carborane powders were evaporated under a deuterium atmosphere, the residual gas analyzer showed a significant decrease in the partial pressure of water while less change was noted from the partial pressures of nitrogen and oxygen. The most efficient removal rate for water was obtained when carborane powder was flown under deuterium atmosphere at 150 °C. The SIMS data showed higher concentrations of nitrogen and oxygen in the carborane films deposited on Si substrates under a deuterium atmosphere, demonstrating that boronization under a deuterium atmosphere is an effective method to remove impurities.
Starting Page	465
Ending Page	469
Page Count	5
File Format	PDF
ISSN	03744884
Journal	Journal of the Korean Physical Society
Volume Number	66
Issue Number	3
e-ISSN	19768524
Language	English
Publisher	The Korean Physical Society
Publisher Date	2015-02-22
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Deuterium Boronization Theoretical, Mathematical and Computational Physics Plasma Glow Discharge Carborane(C$_{2}$B$_{10}$H$_{12}$) Physics Particle and Nuclear Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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Impurity reduction in a plasma by using the deuterium and helium glow discharge method

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