RESEARCH ON LARGE EMISSION AREA THERMIONIC CATHODE

摘要：

Because it can provide greater reproducibility and lower emittance beams than does a field emission cathode, the thermionic cathodes have now been used in linear induction accelerators to improve the performance of the injectors. The thermionic dispenser cathodes have been developed in our laboratory and a test stand had also been established to test the performance of the cathodes. The dispenser cathodes with emission diameter of 55m and 100mm were respectively tested on the test stand. The results indicate that the source limiting flow is 12A/cm2 which is a little lower than that expected. At the same time, another kind of thermionic cathode LaB6 is now under construction too. The diameter of this LaB6 cathode is 70mm.

作者: Liansheng Xia Anming Yang Huang Zhang Kaizhi Zhang Jinshui Shi Linwen Zhang Jianjun Deng

作者单位: Institute of Fluid Physics,Chinese Academy of Engineering Physics,Mianyang 671900,China

会议类型: 国际会议

会议名称: 17th International Conference on High-Power Particle Beams(第17届高功率离子束国际会议)

会议地点: 西安

会议语种:英文

页码: 201-203

在线出版日期: 2008-07-06（万方平台首次上网日期，不代表论文的发表时间）