Transition of Edge Particle Transport in CHS
Transition of Edge Particle Transport in CHS
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CHS 中边缘粒子输运的转变
DOI：
10.1585/jspf.79.977
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Yoshinuma Mikirou
中科院分区：
文献类型：
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作者：
Okamura Shoichi;Minami Takashi;Suzuki Chihiro;Isobe Mitsutaka;Oishi Tetsutarou;Ida Katsumi;Y. Yasuo;Nagaoka Kenichi;Fujisawa Akihide;Toi Kazuo;A. Tsuyoshi;Iguchi Harukazu;Ikeda Ryosuke;Kado Shinichiro;Matsuoka Keisuke;Matsushita Hiroyuki;Nakamura Kiichiro;Nakano Haruhisa;N. Shin;N. Masaki;Ohshima Shinsuke;Shimizu Akihiro;T. Shoji;Takahashi Chihiro;Takeuchi Masaki;Yoshinuma Mikirou
在中性束加热的CHS等离子体中，观察到边缘粒子输运的明显转变。对于平均密度为2 × 10 19 m-3的等离子体，跃迁的加热功率阈值约为1 MW。通过YAG汤姆逊散射和电子束发射光谱证实了Hα发射在1毫秒内下降，并且在跃迁处局部边缘密度增加。当加热功率远高于阈值时，在NBI加热的整个持续时间（100毫秒）内保持传输势垒。当放电过程中加热功率降低时，出现明显的后转变。
A clear transition of edge particle transport was observed for the neutral beam heated plasmas in CHS. The heating power threshold for the transition is about 1 MW for a plasma with 2 × 10 19 m ‐3 average density. The Hα emission drops within 1 msec and the increase of the local edge density at the transition was confirmed by means of YAG Thomson scattering and beam emission spectroscopy. When the heating power is well above the threshold, the transport barrier is maintained for the full duration of NBI heating (100 msec). A clear back transition appears when the heating power is decreased during the discharge.