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Plasma Cleaning of Metallic Mirrors from Carbon-Containing Films - New Possibilities for In Situ Monitoring of the Eff...
ISSN: 2369 - 3355Publisher: author   
Plasma Cleaning of Metallic Mirrors from Carbon-Containing Films - New Possibilities for In Situ Monitoring of the Eff...
Indexed in
Technology and Engineering
ARTICLE-FACTOR
1.3
Article Basics Score: 2
Article Transparency Score: 3
Article Operation Score: 3
Article Articles Score: 3
Article Accessibility Score: 3
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International Category Code (ICC):
ICC-1802
Publisher: Lifescience Global Inc.
International Journal Address (IAA):
IAA.ZONE/2369108093355
eISSN
:
2369 - 3355
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Abstract
The method proposed for measuring the erosion rate of the carbon film, pre-deposited on the mirror-like surface of the test metallic samples, directly during wall conditioning procedures in a fusion device. The practical realization of the method provided at the DSM-2 stand where deuterium plasma produced in conditions of electron resonance at frequency 2.45 GHz used for cleaning the samples. For controlling C-film thickness the time variation of electrical conductivity of the circuit '˜film+plasma+entire scheme' was measured. The final cleaning stage sets according to the saturation section corresponding to the resistance of the entire measuring scheme. To check the state of full purification of samples from a carbon-containing film the reflectance at normal incidence in the wavelength 220-650 nm was measured before C-film deposition, just after C-film deposition, and after finishing the cleaning procedure. In all cases (16 experimen...