磁化同軸プラズマガン装置におけるCTプラズマの特性評価とパルス高熱負荷模擬試験への適用

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2016/03/01

タイトル(英語): Characterization of CT Plasmas on a Magnetized Coaxial Plasma Gun Device and its Application to Pulse High Heat Flux Simulation Tests

著者名: 佐久間　一行（兵庫県立大学大学院工学研究科），菊池　祐介（兵庫県立大学大学院工学研究科），礒野　航（兵庫県立大学大学院工学研究科），中園　拓実（兵庫県立大学大学院工学研究科），中根　優人（兵庫県立大学大学院工学研究科），福本　直之（兵庫県立大学大学院工学研究科），永田　正義（兵庫県立大学大学院工学研究科）

著者名(英語): Ikko Sakuma (Grad. Sch. of Eng., Univ. of Hyogo), Yusuke Kikuchi (Grad. Sch. of Eng., Univ. of Hyogo), Wataru Isono (Grad. Sch. of Eng., Univ. of Hyogo), Takumi Nakazono (Grad. Sch. of Eng., Univ. of Hyogo), Masato Nakane (Grad. Sch. of Eng., Univ. of Hyogo), Naoyuki Fukumoto (Grad. Sch. of Eng., Univ. of Hyogo), Masayoshi Nagata (Grad. Sch. of Eng., Univ. of Hyogo)

キーワード: 磁化同軸プラズマガン，CTプラズマ，ダイバータ，パルス熱負荷試験　　magnetized coaxial plasma gun，CT plasma，divertor，pulse heat flux test

要約(英語): A magnetized coaxial plasma gun (MCPG) device at Univ. of Hyogo was used as a simulation facility for pulse heat loads such as ELMs (Edge Localized Modes) onto plasma-facing materials in magnetically confined fusion devices. In the present study, characterization of the compact toroid (CT) plasmas produced by the MCPG device was performed. Dependences of the CT plasma parameters of line-averaged electron density, ion temperature and flow velocity on the gun discharge voltage and the bias magnetic flux were measured. As a result, it was observed that the pulse length, the line-averaged electron density, and the ion temperature and flow velocity were approximately 200 µs, approximately 6×1021 m-3, approximately 30 eV, and approximately 50 km s-1, respectively. The surface energy density measured with a tungsten calorimeter was approximately 0.4 MJ m-2. Thus, it was shown that the ELM-like pulsed plasma heat loads with the energy density and the pulsed length predicted in the ITER divertor can be produced using the MCPG device.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.3 （2016）

本誌掲載ページ: 147-154 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/136/3/136_147/_article/-char/ja/