Impurity measurements in plasma boundary of JIPP T-II tokamak/stellarator.
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概要
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Impurity transport in the scrape-off layer of the JIPP T-II Tokamak/Stellarator hybrid torus machine in Institute of Plasma Physics, Nagoya University has been investigated by a probe measurement. Silicon and Cu probes were inserted into the boundary plasma during discharges. The surface of the probes was analyzed by several analytical techniques including AES, XPS, RBS and PIXE. Main metallic impurities deposited on the probes were Mo and Fe which originated from the limiters and the inner wall of the vacuum chamber. Depth concentration profile of deposited impurities was measured by AES along with sputter-etching of the surface with Ar ions. Deposited Fe impurity had the maximum concentration at the top surface of the probe, while the depth profile of Mo showed the maximum concentration at around 8 Å from the top surface. Transportation energy of these impurities are discussed on the basis of the projected range data.
- 一般社団法人 日本原子力学会の論文
著者
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TANAHASHI Shugo
Institute of Plasma Physics, Nagoya University
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Yamashina Toshiro
Department Of Nuclear Engineering Hokkaido University
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Hashiba Masao
Department Of Nuclear Engineering Hokkaido University
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Amemiya Susumu
Department Of Nuclear Engineering Nagoya University
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Maeda Shigeru
Department Of Applied Chemistry And Chemical Engineering Faculty Of Engineering Kagoshima University
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Tanahashi Shugo
Institute Of Plasma Physics Nagoya University
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FUJITA Junji
Institute of Plama Physics, Nagoya University
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MOHRI Mamoru
Department of Nuclear Engineering, Hokkaido University
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SATAKE Tohru
Department of Nuclear Engineering, Hokkaido University
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