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Chinese Physics C> 1997, Vol. 21> Issue(5) : 470-474 

Experimeotal Study of a Multi - Cavity BF Gun With Thermionic Cathode

  •  Department of Engineering Physics, Tsinghua University, Beijing 1000842 Application Division, Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100080

  • A novel multi-cavity RF thermionic gun with much less back bombardment effect has beea designed, built, tested and experiraeated. ln this paper we mainly discuss 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 after 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.
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    [1] 谢家麟，庄杰桂等，倚能物理与核物理，18(1994)765.[2]唐传祥，用于北京自由电子激光器的多腔热阴极微波电子枪的研究，清华大学博土学位论文，1996.[3]X.J.Wang et al.,Nucl.Instr.and Meth.,A356（1995）159.[4]唐传祥，杨越，林郁正，高能物理与核物理，20（1996）376.[5]唐传祥，林郁正，强激光与粒子束，8（1996）61.[6]唐传祥，林郁正等，高能物理与核物理，21（1997）378.

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Tang Chuanxiang, Wu Yuanming, Wang Youzhi, Zhao Xinqiao, Lin Yuzheng and Xie Jialin. Experimeotal Study of a Multi - Cavity BF Gun With Thermionic Cathode[J]. Chinese Physics C, 1997, 21(5): 470-474.
Tang Chuanxiang, Wu Yuanming, Wang Youzhi, Zhao Xinqiao, Lin Yuzheng and Xie Jialin. Experimeotal Study of a Multi - Cavity BF Gun With Thermionic Cathode[J]. Chinese Physics C, 1997, 21(5): 470-474. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Experimeotal Study of a Multi - Cavity BF Gun With Thermionic Cathode

    Corresponding author: Tang Chuanxiang,
  • Department of Engineering Physics, Tsinghua University, Beijing 1000842 Application Division, Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100080
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1997-05-05

Abstract: A novel multi-cavity RF thermionic gun with much less back bombardment effect has beea designed, built, tested and experiraeated. ln this paper we mainly discuss 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 after 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.

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