2-D PSD Diagnostic System for the Pellet Trajectory in LHD Plasmas
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概要
- 論文の詳細を見る
Ablation of a solid hydrogen pellet in hot plasmas of Large Helical Device (LHD) has been studied. A position sensitive detector (PSD) diagnostics has been newly installed to measure the trajectory of ablating pellets. 2-D diagnostics enables the measurement with high time (1 MHz) and spatial resolutions (80 μm). A 3-D pellet trajectory can be described by a combination of 2-D images and information of initial pellet direction and velocity. A deflection of the pellet trajectory in the neutral beam injection (NBI) heated plasmas of LHD has been observed. Means of improving the measurement accuracy of this system are also discussed.
- 社団法人 プラズマ・核融合学会の論文
著者
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YAMADA Hiroshi
National Insitute for Fusion Science
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KUMAZAWA Ryuhei
National Insitute for Fusion Science
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SAKAMOTO Ryuichi
National Insitute for Fusion Science
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WATARI Tetsuo
National Insitute for Fusion Science
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WATARI Tetsuo
National Institute for Fusion Science, Toki 509-5292, Japan
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HOSHINO Mitsuyasu
Department of Energy Engineering and Science, Nagoya University
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ITOH Yasuhiko
National Institute for Fusion Science, Toki 509-5292, Japan
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KUMAGAI Kohki
The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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KUMAZAWA Ryuhei
National Institute for Fusion Science, Toki 509-5292, Japan
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