BXERL photo-injector based on a 217 MHz normal conducting RF gun
The Beijing X-ray Energy Recovery Linac (BXERL) test facility is proposed in Institute of High Physics (IHEP). In this proposal, the main linac requires the injector to provide an electron beam with 5 MeV energy and 10 mA average current. An injector based on DC gun technology is the first candidate...
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Published in | Chinese physics C Vol. 35; no. 9; pp. 865 - 869 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
01.09.2011
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Abstract | The Beijing X-ray Energy Recovery Linac (BXERL) test facility is proposed in Institute of High Physics (IHEP). In this proposal, the main linac requires the injector to provide an electron beam with 5 MeV energy and 10 mA average current. An injector based on DC gun technology is the first candidate electron source for BXERL. However, the field emission in the DC gun cavity makes it much more difficult to increase the high voltage to more than 500 kV. Another technology based on a 217 MHz normal conducting RF gun is proposed as the backup injector for this test facility. We have designed this RF gun with 2D SUPERFISH code and 3D MICROWAVE STUDIO code. In this paper, we present the optimized design of the gun cavity, the gun RF parameters and the set-up of the whole injector system. The detailed beam dynamics have been done and the simulation results show that the injector can generate electron bunches with RMS normalized emittance 1.0 7πmm-mrad, bunch length 0.77 mm, beam energy 5.0 MeV and energy spread 0.60%. |
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AbstractList | The Beijing X-ray Energy Recovery Linac (BXERL) test facility is proposed in Institute of High Physics (IHEP). In this proposal, the main linac requires the injector to provide an electron beam with 5 MeV energy and 10 mA average current. An injector based on DC gun technology is the first candidate electron source for BXERL. However, the field emission in the DC gun cavity makes it much more difficult to increase the high voltage to more than 500 kV. Another technology based on a 217 MHz normal conducting RF gun is proposed as the backup injector for this test facility. We have designed this RF gun with 2D SUPERFISH code and 3D MICROWAVE STUDIO code. In this paper, we present the optimized design of the gun cavity, the gun RF parameters and the set-up of the whole injector system. The detailed beam dynamics have been done and the simulation results show that the injector can generate electron bunches with RMS normalized emittance 1.0 7πmm-mrad, bunch length 0.77 mm, beam energy 5.0 MeV and energy spread 0.60%. The Beijing X-ray Energy Recovery Linac (BXERL) test facility is proposed in Institute of High Physics (IHEP). In this proposal, the main linac requires the injector to provide an electron beam with 5 MeV energy and 10 mA average current. An injector based on DC gun technology is the first candidate electron source for BXERL. However, the field emission in the DC gun cavity makes it much more difficult to increase the high voltage to more than 500 kV. Another technology based on a 217 MHz normal conducting RF gun is proposed as the backup injector for this test facility. We have designed this RF gun with 2D SUPERFISH code and 3D MICROWAVE STUDIO code. In this paper, we present the optimized design of the gun cavity, the gun RF parameters and the set-up of the whole injector system. The detailed beam dynamics have been done and the simulation results show that the injector can generate electron bunches with RMS normalized emittance 1.0 mu mm times mrad, bunch length 0.77 mm, beam energy 5.0 MeV and energy spread 0.60%. |
Author | LIU Sheng-Guang HUANG Tong-Ming XU Jin-Qiang |
AuthorAffiliation | Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
Author_xml | – sequence: 1 fullname: Liu, Sheng-Guang (圣广 刘) – sequence: 2 fullname: Huang, Tong-Ming (彤明 黄) – sequence: 3 fullname: Xu, Jin-Qiang (金强 徐) |
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Notes | The Beijing X-ray Energy Recovery Linac (BXERL) test facility is proposed in Institute of High Physics (IHEP). In this proposal, the main linac requires the injector to provide an electron beam with 5 MeV energy and 10 mA average current. An injector based on DC gun technology is the first candidate electron source for BXERL. However, the field emission in the DC gun cavity makes it much more difficult to increase the high voltage to more than 500 kV. Another technology based on a 217 MHz normal conducting RF gun is proposed as the backup injector for this test facility. We have designed this RF gun with 2D SUPERFISH code and 3D MICROWAVE STUDIO code. In this paper, we present the optimized design of the gun cavity, the gun RF parameters and the set-up of the whole injector system. The detailed beam dynamics have been done and the simulation results show that the injector can generate electron bunches with RMS normalized emittance 1.0 7πmm-mrad, bunch length 0.77 mm, beam energy 5.0 MeV and energy spread 0.60%. 11-5641/O4 ERL, normal conducting RF gun, photo-injector, CW mode ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
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References | 11 12 Teichert (10) 13 1 Wang Shu-Hong (7) 3 Ben-Zvi I (4) 6 9 Derbenev Y S (5) Chen Sen-Yu (8) 2010; 34 Hajima R (2) |
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Snippet | The Beijing X-ray Energy Recovery Linac (BXERL) test facility is proposed in Institute of High Physics (IHEP). In this proposal, the main linac requires the... The Beijing X-ray Energy Recovery Linac (BXERL) test facility is proposed in Institute of High Physics (IHEP). In this proposal, the main linac requires the... |
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SubjectTerms | Beams (radiation) Conduction Direct current Dynamics Holes Injectors Radio frequencies Test facilities 优化设计 喷油器 微波电子枪 测试设备 照片 电子束能量 直线加速器 能量回收 |
Title | BXERL photo-injector based on a 217 MHz normal conducting RF gun |
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