Recovery of Tungsten Surface with Fiber-Form Nanostructure by the Argon Plasma Irradiation at a High Surface Temperature

• TAKAMURA Shuichi

  Faculty of Engineering, Aichi Institute of Technology, Toyota 470-0392, Japan

• MIYAMOTO Takanori

  Faculty of Engineering, Aichi Institute of Technology, Toyota 470-0392, Japan

Abstract

One of the serious concerns for tungsten materials in fusion devices is the radiation defects caused by helium plasma irradiation, while the helium is one of fusion products. Fiber-formed nanostructure is worried to have a possible weakness against the plasma heat flux and may destroy the reflectivity as an optical mirror. In this communication an interesting method for a recovery of such a tungsten surface is shown.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 6 1202005-1202005, 2011

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• plasma-facing material
• tungsten surface
• nanostructure
• recovery of surface flatness
• helium defect
• argon plasma

Details

• CRID: 1390282680232688896
• NII Article ID: 130000903673
• DOI: 10.1585/pfr.6.1202005
• ISSN: 18806821
• Web Site: http://www.jstage.jst.go.jp/article/pfr/6/0/6_0_1202005/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed