First Beam Measurements of the S-Band photocathode Radio-Frequency Gun at Tsinghua University
DU Ying-Chao1, YAN Li-Xin1, DU Qiang2, HE Xiao-Zhong3, XIANG Dao1, TANG Chuan-Xiang1, HUANG Wen-Hui1, LIN Yu-Zheng1
1Accelerator Laboratory, Department of Engineering Physics, Tsinghua University, Beijing 100084 2Institute of Physics, Chinese Academy of Sciences, Beijing 1000803Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900
First Beam Measurements of the S-Band photocathode Radio-Frequency Gun at Tsinghua University
DU Ying-Chao1;YAN Li-Xin1;DU Qiang2;HE Xiao-Zhong3;XIANG Dao1;TANG Chuan-Xiang1;HUANG Wen-Hui1;LIN Yu-Zheng1
1Accelerator Laboratory, Department of Engineering Physics, Tsinghua University, Beijing 100084 2Institute of Physics, Chinese Academy of Sciences, Beijing 1000803Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900
摘要During the last decades, photocathode rf gun has been proven to be successful in generating the high brightness electron beam (～1nC,1～πmmmrad,～1ps) which is required by the ILC, XFEL, Thomson scattering x-ray source, etc. A photocathode rf gun system is built to develop electron source for the Thomson scattering x-ray source at Accelerator Laboratory of Tsinghua University. The system consists of a BNL/ATF-type 1.6 cell S-band rf cavity, a solenoid for emittance compensation, a laser system and some simple equipments for beam diagnosis. The first beam measurements of the photocathode rf gun, including the dark current, transverse beam profile, charge and quantum efficiency, are reported.
Abstract：During the last decades, photocathode rf gun has been proven to be successful in generating the high brightness electron beam (～1nC,1～πmmmrad,～1ps) which is required by the ILC, XFEL, Thomson scattering x-ray source, etc. A photocathode rf gun system is built to develop electron source for the Thomson scattering x-ray source at Accelerator Laboratory of Tsinghua University. The system consists of a BNL/ATF-type 1.6 cell S-band rf cavity, a solenoid for emittance compensation, a laser system and some simple equipments for beam diagnosis. The first beam measurements of the photocathode rf gun, including the dark current, transverse beam profile, charge and quantum efficiency, are reported.
DU Ying-Chao;YAN Li-Xin;DU Qiang;HE Xiao-Zhong;XIANG Dao;TANG Chuan-Xiang;HUANG Wen-Hui;LIN Yu-Zheng. First Beam Measurements of the S-Band photocathode Radio-Frequency Gun at Tsinghua University[J]. 中国物理快报, 2007, 24(7): 1876-1879.
DU Ying-Chao, YAN Li-Xin, DU Qiang, HE Xiao-Zhong, XIANG Dao, TANG Chuan-Xiang, HUANG Wen-Hui, LIN Yu-Zheng. First Beam Measurements of the S-Band photocathode Radio-Frequency Gun at Tsinghua University. Chin. Phys. Lett., 2007, 24(7): 1876-1879.
[1] 2002 LCLS Conceptual Design Report SLAC-R-593 [2] 1997 TESLA Conceptual Design Report DESY 1997-048 [3] PAL-XFEL Conceptual Design Report, Pohang, Korea, 2004 [4] Wang X J, Xiang D, Kim T K and Jhee H 2006 J. KoreanPhys. Soc. 48 390 [5] Hastings J B, Rudakov F M, Dowell D H et al 2006 Appl.Phys. Lett. 89 184109 [6] Loewl G et al 1995 International Linear Collider TechnicalReview Committee Report SLAC-R-95-471 [7] Schoenlein R W, Leemans W P, Chin A H et al 1996 Science 274 236 [8] Tang C X, Huang W H, Chen H B et al 2004 Research ofThomson Scattering S-Ray Source at Tsinghua University FEL2004 [9] Du Y C, Huang W H, Hua J F et al 2007 High Energy Phys.Nucl. Phys. (in press) [10] Wang X J et al 1993 Design and Construction of a Full CopperPhotocathode Gun Proc. PAC p 3000 [11] Dao X, Park S J, Park J H, Parc Y W and Wang X J 2006 Nucl. Instrum. Methods A 562 48 [12] Wang J W 1989 SLAC-R-339
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