Investigation on plasma structure evolution and discharge characteristics of a single-stage planar-pulsed-inductive accelerator under ambient fill condition  

作　　者：Xiao-Kang Li Bi-Xuan Che Mou-Sen Cheng Da-Wei Guo Mo-Ge Wang Yun-Tian Yang 李小康;车碧轩;程谋森;郭大伟;王墨戈;杨云天(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China

出　　处：《Chinese Physics B》2020年第11期398-405,共8页中国物理B（英文版）

基　　金：Project supported by the Hunan Provincial Natural Science Foundation of China(Grant No.2018JJ3592).

摘　　要：The physical process of a single-stage planar-pulsed-inductive accelerator is investigated.Measurements include the waveforms of circuit current,capacitor voltage,plasma radiation intensity,and temporal plasma structure photos captured by a high-speed camera.Experiments are conducted under static ambient fill condition using argon as propellant.Varied values of capacitor voltage and gas pressure are compared.Further discussions quantify the EM interaction between circuit and plasma,as well as their energy deposition and current sheet acceleration.Based on the results of experiments,physical mechanisms of the initial ionization phase and the following acceleration phase are analyzed theoretically.

关 键 词：electric propulsion pulsed-inductive thruster discharge characteristics plasma structure 

分 类 号：TL50[核科学技术—核技术及应用] O53[理学—等离子体物理]