Pseudospark experiments: Cherenkov interaction and electron beam post-acceleration
Pseudospark experiments: Cherenkov interaction and electron beam post-acceleration
复制标题
DOI：
10.1109/tps.2004.823986
复制
发表时间：
2004-05
影响因子：
1.5
通讯作者：
H. Yin;A. Cross;W. He;A. Phelps;K. Ronald
中科院分区：
文献类型：
--
作者：
H. Yin;A. Cross;W. He;A. Phelps;K. Ronald
在英国格拉斯哥的Strathclyde大学进行了产生高亮度电子束的赝火花（PS）放电实验。PS源电子束有两个相位，一个初始的22 kv， 50 a的空心阴极相（HCP）光束，亮度为10/sup 9-10/ Am/sup -2/ rad/sup -2/，然后是一个200 v， 200 a的导电相（CP）光束，亮度为10/sup 11-12/ Am/sup -2/ rad/sup -2/。首次在电子束与60厘米长铝衬里波导的TM/sub - 01/模式之间的切伦科夫相互作用中应用了8隙PS放电产生的初始HCP光束。在25.5-28.6 GHz频率范围内，测量到增益为29/spl plusmn/ 3db，输出功率为2/spl plusmn/0.2 kW。另一个实验重点研究了三间隙PS放电室中CP光束的传播和后加速。光束成功地从200伏加速到40千伏以上。
Pseudospark (PS) discharge experiments to generate high-brightness electron beams have been carried out at the Strathclyde University, Glasgow, U.K. The PS-sourced electron beam has two phases, an initial 22-kV, 50-A hollow-cathode phase (HCP) beam of brightness 10/sup 9-10/ Am/sup -2/ rad/sup -2/ followed by a 200-V, 200-A conductive phase (CP) beam of brightness 10/sup 11-12/ Am/sup -2/ rad/sup -2/. The initial HCP beam from an eight-gap PS discharge was applied for the first time in a Cherenkov interaction between the electron beam and the TM/sub 01/ mode of a 60-cm long alumina-lined waveguide. A gain of 29/spl plusmn/3 dB was measured and an output power of 2/spl plusmn/0.2 kW in the frequency range 25.5-28.6 GHz. Another experiment was focused on the study of the propagation and post-acceleration of the CP beam from a three-gap PS discharge chamber. The beam was successfully accelerated from about 200 V to more than 40 kV.