Formation of Diffuse and Spark Discharges in Nonuniform Electric Field in Elevated Pressure Gases

作     者：V. F. Tarasenko E. Kh. Baksht A. G. Burachenko M. V. Erofeev 

作者机构：Institute of High Current Electronics Russian Academy of Sciences Siberian Branch 634055 Tomsk Russia 

出 版 物：《高电压技术》 (High Voltage Engineering)

年 卷 期：2013年第39卷第9期

页      面：2105-2111页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Project supported by Russian Foundation for Basic Research(under Grant12-08-00105_a) 

主　　题：火花放电 不均匀电场 高压气体 脉冲重复频率 上升时间 CCD照相机 电压脉冲 曲率半径 

摘      要：Diffuse and spark discharges are formed and studied during breakdowns with nonuniform electric field in nitrogen,air,and argon at elevated pressures and pulse repetition frequency of 400 ***-polarity voltage pulses of the amplitude 20 kV,width at the base of 15 ns and rise time of 2 ns are applied to the electrode with a small radius of *** the conditions of generation of runaway electron beams and X-rays,a CCD camera records the time of the diffuse discharge formation and its duration prior to its transition to a spark *** all three gases,the diffuse discharge is formed during the time not exceeding 1 ns,when the bright spots appear on cathode in argon and air resulting in the beginning of the spark channel propagation.