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中嶋 洋輔*; 武田 寿人*; 市村 和也*; 細井 克洋*; 大木 健輔*; 坂本 瑞樹*; 平田 真史*; 市村 真*; 池添 竜也*; 今井 剛*; et al.
Journal of Nuclear Materials, 463, p.537 - 540, 2015/08
被引用回数:22 パーセンタイル:85.55(Materials Science, Multidisciplinary)A divertor simulation experimental module (D-module) with a V-shaped divertor target is installed in the west end-sell in GAMMA 10 large tandem mirror device, and a hydrogen plasma irradiation experiment to the target have been started to investigate radiation cooling mechanism on the target. A gas injection system is installed in the D-module and Langmuir probe and calorie meter array are mounted on the target plate. During the plasma irradiation, the highest electron density of 2.4 10
m
and a significant reduction of the electron temperature from a few tens of eV to 2 eV are achieved on the target plate by hydrogen and noble gas injection into the D-module.
中嶋 洋輔*; 坂本 瑞樹*; 吉川 正志*; 大木 健輔*; 武田 寿人*; 市村 和也*; 細井 克洋*; 平田 真史*; 市村 真*; 池添 竜也*; et al.
Proceedings of 25th IAEA Fusion Energy Conference (FEC 2014) (CD-ROM), 8 Pages, 2014/10
In the large tandem mirror device GAMMA 10/PDX, a divertor simulation experimental module (D-module) with a V-shaped divertor target have been installed in the end-mirror. A massive gas injection of hydrogen and noble gases (argon and xenon) into the D-module during hydrogen plasma irradiation onto the target was performed, and plasma detachment from the target was investigated. Electron temperature measured by Langmuir probe array on the target was significantly reduced from a few tens of eV to 3 eV, and particle flux was also reduced. A bright H
emission in the upstream region of the D-module and strong reduction near the target were observed by a two-dimensional image of H
emission in the target observed with a high-speed camera. Molecular activated recombination (MAR) process is expected to contribute to the reduction of the electron temperature and the particle flux.
仲野 友英; 藤本 孝*; 後藤 基志*; 畑山 明聖*; 門 信一郎*; 加藤 隆子*; 季村 峯生*; 久保 博孝; 村上 泉*; 大野 哲靖*; et al.
Annual Report of National Institute for Fusion Science; April 2003 - March 2004, P. 414, 2003/10
核融合科学研究所共同研究「境界層プラズマの分光診断」の概要について報告する。本共同研究では研究会形式の作業会を平成15年12月に開催した。研究協力者以外にも学生を含めた聴講者が10人を超え、活発な議論が行われた。講演者はデータ生産,モデリング/解析コード作成及び実験データ解析に携る研究者の3グループに分類され、それぞれの立場から研究の進展状況・課題などがまとめて報告された。各人の研究内容は学術的な観点から有機的に結びつくものであり、参加者においては相互横断的な知見が得られ、関連する原子分子データの必要性が改めて認識された。