等离子体破裂时逃逸电流的实验研究  

Study of Runaway Current during Plasma Disruption

作　　者：方达[1] 竹锦霞[1,2] 孙伟民[1] 段卓琦[1] 朱俊[1] 陈忠勇[3] 

机构地区：[1]云南师范大学物理与电子信息学院,昆明650092 [2]四川文理学院物理与工程技术系,四川达州635000 [3]华中科技大学电子与电气工程学院,武汉430074

出　　处：《红河学院学报》2012年第2期15-17,共3页Journal of Honghe University

摘　　要：等离子体破裂是影响托卡马克装置实现商业发电的一大难题。等离子体大破裂会导致等离子体在瞬间熄灭,同时会对装置本身以及装置的第一壁材料形成巨大损伤。等离子体破裂时会产生大量高能逃逸电子,从而把一部分等离子体电流转化为逃逸电流。逃逸电流在一定的情况下会局域地沉积到装置的第一壁上,从而影响壁材料的寿命和性能,观察研究等离子体破裂下电流的熄灭特征以及逃逸电流的特征,探寻降低等离子体破裂危害的方法至关重要。Plasma disruption has a negative influence on the realization of the commercial power generation in TOKAMAK. Disruption will lead the plasma to extinguish, and in the meanwhile, it may damage the first wall of the setups. Plasma disruption can produce a mass of high energy runaway electrons, which make a part of the plasma currents transform to runaway currents. In certain situations runaway current will be deposited to the first wall of the setups, which may affect the lifetime and properties of the materials. In the paper, the characteristics of the quenched current under disruption and the runaway current are demonstrated.

关 键 词：破裂 逃逸电子 逃逸电流 

分 类 号：O53[理学—等离子体物理]