First Observation of Plasma Motion in GAMMA 10 Using a Fast Camera

First Observation of Plasma Motion in GAMMA 10 Using a Fast Camera
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使用快速相机首次观察 GAMMA 10 中的等离子体运动

DOI:
10.1585/pfr.1.035
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发表时间:
2006
影响因子:
0.8
通讯作者:
T. Cho
T. Cho
中科院分区:
--
文献类型:
--
作者:
N. Nishino;Y. Nakashima;Y. Higashizono;S. Kobayashi;K. Islam;Y. Kubota;M. Yoshikawa;Y. Mishima;T. Cho

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使用快速相机结合喷气的可见光成像测量在伽马10串联镜中进行了演示。为了对周边的等离子体行为进行成像,在真空室底部靠近伽马10中心单元的地方使用氢气喷吹。如果没有喷气,光发射不够亮,SN比也不好。通过使用喷气,可以清楚地观察到光发射,并确认等离子体柱的5-6 kHz振动。这种运动很可能是由于电子漂移波和Er × B漂移引起的等离子体旋转。这些结果表明,快速相机结合使用的喷气是一个有前途的候选人,即使在低密度镜等离子体的周边等离子体行为的测量。
Visible imaging measurement using a fast camera in conjunction with a gas puff was demonstrated in the GAMMA 10 tandem mirror. In order to image plasma behavior on the periphery, a hydrogen gas puff in the bottom of the vacuum chamber near the GAMMA 10 central-cell was used. Without the gas puff the light emission was not sufficiently bright, and SN ratio is not good. By using the gas puff, the light emission could be clearly observed, and a 5-6 kHz vibration of the plasma column was confirmed. This motion is most likely plasma rotation due to the electron drift wave and Er × B drift. These results show that the fast camera used in conjunction with a gas puff is a promising candidate for the measurement of peripheral plasma behavior even in low-density mirror plasmas.
NAGDIS-II 附着和分离等离子体中间歇性斑点等离子体传输的可视化
DOI: --
发表时间: 2004
期刊: Journal of Plasma and Fusion Research 80・4
影响因子: --
作者:
N.Ohno;K.Furuta;S.Takamura
通讯作者: S.Takamura