Real-time mass measurement of dust particles deposited on vessel wall in a divertor simulator using quartz crystal microbalances

Mizuki Tateishi, Kazunori Koga, Ryu Katayama, Daisuke Yamashita, Kunihiro Kamataki, Hyunwoong Seo, Naho Itagaki, Masaharu Shiratani, Naoko Ashikawa, Suguru Masuzaki, Kiyohiko Nishimura, Akio Sagara

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Abstract We are developing a dust monitoring method using quartz crystal microbalances (QCMs) equipped with a dust eliminating filter. Here we report a dust eliminating ratio of the filter and first measurement results of the QCMs in a divertor simulator. The volume of spherical dust in unit area on the filter and QCM under the filter were 2.09 × 10-9 and 1.22 × 10-10 m3 m-2, respectively. Thus, the dust eliminating ratio of the filter is 94.2%. The QCM without the filter gives deposition rate due to radicals and dust particles, whereas the QCM with the filter gives deposition rate predominantly due to radicals. From the results, we deduce information of mass fraction of dust particles in deposits.

元の言語英語
記事番号48546
ページ(範囲)865-868
ページ数4
ジャーナルJournal of Nuclear Materials
463
DOI
出版物ステータス出版済み - 7 22 2015

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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