Observation of runaway electrons by infrared camera in J-TEXT.
Observation of runaway electrons by infrared camera in J-TEXT.
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DOI：
10.1063/1.4960311
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发表时间：
2016-11
期刊：
影响因子：
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通讯作者：
R. Tong;Z. Chen;M. Zhang;D. Huang;W. Yan;G. Zhuang
中科院分区：
文献类型：
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作者：
R. Tong;Z. Chen;M. Zhang;D. Huang;W. Yan;G. Zhuang
当逃逸电子的能量接近几十MeV时，逃逸电子可以发出红外波段的同步辐射。研制了一台工作波长为3-5 μm的红外相机，用于研究J-TEXT托卡马克装置中的逃逸电子。照相机位于赤道平面上，切向观察电子接近的方向。在等离子体的平顶阶段观察到了逃逸电子束。利用相机的快速采集，直接观察到大量气体注入触发击穿后逃逸电流平台期间逃逸电子束的行为。
When the energy of confined runaway electrons approaches several tens of MeV, the runaway electrons can emit synchrotron radiation in the range of infrared wavelength. An infrared camera working in the wavelength of 3-5 μm has been developed to study the runaway electrons in the Joint Texas Experimental Tokamak (J-TEXT). The camera is located in the equatorial plane looking tangentially into the direction of electron approach. The runaway electron beam inside the plasma has been observed at the flattop phase. With a fast acquisition of the camera, the behavior of runaway electron beam has been observed directly during the runaway current plateau following the massive gas injection triggered disruptions.