B&amp;D of a Multi-cavity RF Gun With Thermionic Cathode for BFEL

Tang Chuanxiang; Lin Yuzheng; Tong Dechun; Wu Yuanming; Wang Youzhi; Zhao Xinqiao; Xie Jialin

Chinese Physics C> 1997, Vol. 21> Issue(4) : 378-383

B&D of a Multi-cavity RF Gun With Thermionic Cathode for BFEL

Departmetn of Engineering Physics,Tsinghua University,Beijing 1000841 Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 100080

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Abstract：
Thi spaper describes thedesign,simulation and experiment of a multi-cavity RF gun with thermionic cathode for BFEL.This RF gun consists of 1/2+3 cavities (its first half cavity is about 1/3 of a full cavity) with a axis coupling bi-period standing-wave accelerating structure,and works at π/2 mode,2856MHz.We shortened the length of the lst cavity and added a short drift between the 2nd and 3rd cavities,so that the power of back bombardment electrons was greatly decreased and the logitudinal properties were adjusted properly.

References

[1]	谢家麟等，高能物理与核物理，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，清华大学博士学位论文，1996.[3]唐传祥、林郁正，强激光与粒子束，8（1996）61.[4]唐传祥、杨越、林郁正，高能物理与核物理，20（1996）376.

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Tang Chuanxiang, Lin Yuzheng, Tong Dechun, Wu Yuanming, Wang Youzhi, Zhao Xinqiao and Xie Jialin. B&D of a Multi-cavity RF Gun With Thermionic Cathode for BFEL[J]. Chinese Physics C, 1997, 21(4): 378-383.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

B&D of a Multi-cavity RF Gun With Thermionic Cathode for BFEL

Corresponding author: Tang Chuanxiang,

Departmetn of Engineering Physics,Tsinghua University,Beijing 1000841 Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 100080

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-04-05

Abstract: Thi spaper describes thedesign,simulation and experiment of a multi-cavity RF gun with thermionic cathode for BFEL.This RF gun consists of 1/2+3 cavities (its first half cavity is about 1/3 of a full cavity) with a axis coupling bi-period standing-wave accelerating structure,and works at π/2 mode,2856MHz.We shortened the length of the lst cavity and added a short drift between the 2nd and 3rd cavities,so that the power of back bombardment electrons was greatly decreased and the logitudinal properties were adjusted properly.