R&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(S2) : 85-90

R&D of a Multi-Cavity RF Gun with Thermionic Cathode for BFEL

1. Department of engineering Physics, Tsinghua University, Beijing, China;
2. Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, China

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Abstract：
In this paper, the design, simulation, and experimentation of a multi-cavity RF gun with a thermionic cathode for BFEL is described. This RF gun consists of 1/2+3 cavities with an on-axis coupling structure operated in the π/2 mode at 2856 MHz. We shorten the first cavity and add a short drift section between the second and third accelerating cavities, so that the power of back bombardment is decreased significantly and the longitudinal properties are adjusted properly.
- RF gun with thermionic cathode ,
- back bombardment ,
- longitudinal property ,
- current pulse shape

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Tang Chuanxiang, Lin Yuzheng, Tong Dechun, Wu Yuanming, Wang Youzhi, Zhao Xinqiao and Xie Jialin. R&D of a Multi-Cavity RF Gun with Thermionic Cathode for BFEL[J]. Chinese Physics C, 1997, 21(S2): 85-90.

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Received: 1996-04-08

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沈阳化工大学材料科学与工程学院沈阳 110142

R&D of a Multi-Cavity RF Gun with Thermionic Cathode for BFEL

1. Department of engineering Physics, Tsinghua University, Beijing, China;
2. Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, China

Received Date: 1996-04-08

Abstract: In this paper, the design, simulation, and experimentation of a multi-cavity RF gun with a thermionic cathode for BFEL is described. This RF gun consists of 1/2+3 cavities with an on-axis coupling structure operated in the π/2 mode at 2856 MHz. We shorten the first cavity and add a short drift section between the second and third accelerating cavities, so that the power of back bombardment is decreased significantly and the longitudinal properties are adjusted properly.