Recovery of Tungsten Surface with Fiber-Form Nanostructure by Plasmas Exposures

One of the serious concerns for tungsten materials in fusion devices is the radiation defects caused by helium plasma irradiation since helium is a fusion product. The fiber-formed nanostructure is thought to have a possible weakness against the plasma heat flux on the plasma- facing component and a...

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Bibliographic Details
Published inPlasma science & technology Vol. 15; no. 2; pp. 161 - 165
Main Authors Miyamoto, Takanori, Takamura, Shuichi, Kurishita, Hiroaki
Format Journal Article
LanguageEnglish
Published 01.02.2013
Subjects
Devices
Heat flux
Helium
Helium plasma
Nanostructure
Plasmas
Recovery
Reflectivity
Tungsten
光学反射镜
光纤
曝光
氦等离子体
纳米结构
表格
表面等离子体
钨材料
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Summary:One of the serious concerns for tungsten materials in fusion devices is the radiation defects caused by helium plasma irradiation since helium is a fusion product. The fiber-formed nanostructure is thought to have a possible weakness against the plasma heat flux on the plasma- facing component and also may destroy the reflectivity of optical mirrors. In this paper an inter- esting method for the recovery of such tungsten surfaces is shown. The recovery process depends on the grade and manufacturing process of tungsten materials.
Bibliography:helium defects, tungsten, plasma-surface interaction, fiber-form nanostruc-ture, surface recovery
34-1187/TL
One of the serious concerns for tungsten materials in fusion devices is the radiation defects caused by helium plasma irradiation since helium is a fusion product. The fiber-formed nanostructure is thought to have a possible weakness against the plasma heat flux on the plasma- facing component and also may destroy the reflectivity of optical mirrors. In this paper an inter- esting method for the recovery of such tungsten surfaces is shown. The recovery process depends on the grade and manufacturing process of tungsten materials.
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ISSN:1009-0630
DOI:10.1088/1009-0630/15/2/17