摘要
详细介绍了用于北京自由电子激光器（ＢＦＥＬ）多腔热阴极微波电子枪的实验研究情况。
A novel multi -cavity RF thermionic gun with much less back bombardment ef fect has beea designed, built , tested and experiraeated. ln this paper we mainly dis cuss the expermental results of this RF gun From the pulse shapea of BCT at the gun exit and energy spectra at different . positions of the pulse, we have seen that the back bombardment power is much less than the single cavity RF gun. The current af- ter the a-magnet is 200mA, and electron energy is about 1.8MeV. The geometric RMS emitttance is less than 28π nm . mradia x-direction, and lessthan 22π·mm · mrad in y-direction at the linac entrance
出处
《高能物理与核物理》
CSCD
北大核心
1997年第5期470-474,共5页
High Energy Physics and Nuclear Physics
关键词
热阴极
微波电子枪
电子反轰
自由电子激光器
RF thermionic gun, back bombardrnent, current pulse, emmitance, en- ergy spectrum.
