Interactions between accelerated dust particles and an aerogel target

2010 Fiscal Year Final Research Report

• Project/Area Number: 21760697
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: ASHIKAWA Naoko National Institute for Fusion Science, ヘリカル研究部, 助教 (00353441)
• Project Period (FY): 2009 – 2010
• Keywords: ダスト / エアロジェル / 再堆積 / プラズマ-壁相互作用 / 核融合 / 微粒子

Research Abstract

Silica (SiO2) aerogel has been used as a dust collector in this experiment. Impacting or deposited dust particles are trapped in the aerogel where they remain after the vacuum vent. Then, information of dust transport such as the trapping angle and velocity as well as the particle properties such as size, shape and morphology will be evaluated by surface analysis. Since the amount of dust trapped in the aerogel is two times larger than the dust deposited on an Si target, this dust collection method is useful for estimation of the deposition process without the influence of changing pressure from a high vacuum level to atmosphere.

Research Products

• [Journal Article] 高速カメラを利用した磁場閉じ込めプラズマ計測(3)2次元センサーとしての高速カメラ (2010)
  • Author(s): 西野信博, 大舘暁, 磯部光孝, 小川国大, 東井和夫, 花田和明, 芦川直子, 竹内正樹
  • Journal Title: プラズマ核融合学会誌 Pages: 543
• [Presentation] 加速微粒子に対する表面分析法による評価手法の検討 (2011)
  • Author(s): 芦川直子, 田端誠, 足立一郎, 朝倉伸幸
  • Organizer: 日本原子力学会2011年春の年会
  • Place of Presentation: 福井大学文京キャンパス
  • Year and Date: 2011-03-29
• [Presentation] 核融合装置でのダスト捕集 (2011)
  • Author(s): 芦川直子
  • Organizer: 次世代核融合装置におけるダスト問題・研究会
  • Place of Presentation: 核融合科学研究所
  • Year and Date: 2011-03-18
• [Remarks] N.Asakura and N.Ashikawa, "R&D test of in-situ dust collection using Silica aerogel", Annual Report of NIFS, Vol.April 2009-March 2010, p.109