%0 Journal Article
%T X-ray generation in repetitive pulsed discharge in atmospheric air with a point-to-plane gap<br>大气压尖板电极结构重复频率纳秒脉冲放电中X射线辐射特性研究
%A Zhang Cheng
%A Shao Tao
%A Niu Zheng
%A Zhang Dong-Dong
%A Wang Jue
%A Yan Ping
%A <br>章程
%A 邵涛
%A 牛铮
%A 张东东
%A 王珏
%A 严萍
%J 物理学报
%D 2012
%I 
%X Research on the characteristics of X-ray emission in repetitive pulsed discharge is associated with the behavior of runaway electrons and the mechanism of nanosecond pulsed discharge.In the experiments,X-ray emission in the repetitive pulsed discharge with a rise time of～15 ns and an FWHM of 30-40 ns in atmospheric air is directly measured by a detection system consisting of NaI scintillator and a photomultiplier tube,and the energy range of the X-ray detector is demonstrated to be between 10 and 130 keV. Results show that main part of the energy of X-ray is from 20 keV to 90 keV,and a little X-ray with an energy of less than 20 keV or more than 90 keV is detected.X-ray emission increases with the increase of pulse repetition frequency,and it has a peak value with the variation of air gap spacing.There is a maximum value of X-ray emission when the nanosecond discharge appears in a diffuse mode.
%K Gas discharge
%K point-to-plane gap
%K nanosecond pulse
%K X-ray<br>气体放电
%K 尖板电极
%K 纳秒脉冲
%K X射线
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=EA4AE3EE8E5D685E966C5CAB3365DEE3&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=38B194292C032A66&sid=9CF2ECAA4E910762&eid=9CF2ECAA4E910762&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=30