Research and Fabrication of the Photocathodes for DC-SC Photoinjector

XIANG Rong; QUAN Sheng-Wen; LIN Lin; DING Yuan-Tao; LU Xiang-Yang; JIAO Fei; WANG Gui-Mei; ZHAO Kui

Chinese Physics C> 2004, Vol. 28> Issue(7) : 771-774

Research and Fabrication of the Photocathodes for DC-SC Photoinjector

RF Superconducting Accelerator Laboratory,Institute of Heavy lon Physics,Peking University,Beijing 100871,China

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Abstract：
DC-SC photoinjector is a new injector based on the laser-driven photocathode. It is designed to produce the electron beam with high average current required by high average power FEL experiments. For this projector, Cs₂Te and Cs₃Sb photocathodes are fabricated in a self-designed preparation chamber, which is bakable and the vacuum can reach values of 10^－6Pa. Cs₂Te is excited by 266nm UV laser, and its quantum efficiency(QE) is above 2.5% for more than 50 hours, and the QE of Cs₃Sb at 532nm is about 2% and stable for only several hours in vacuum. They can provide enough electrons for our electron gun. Because of its stability, Cs₂Te is adopted in the test facility of the DC-SC photoinjector.

References

[1]

. ZHAO Kui, QUAN Sheng-Wen, HAO Jian-Kui et al. Nucl. Instrum.Methods, 2002, A 483: 1252. ZHAO Kui, DING Yuan-Tao, HUANG Sen-Lin et al. FEL Project andOpt imized Design of IR SASE FEL at Peking University. Proc. FEL2003. Tsukuba, Ibaraki, Japan, 20033. HU Yan-Le et al. HEPNP, 2001, 25(8) : 787(in Chinese)(胡岩乐等，高能物理与核物理，2001,25(8):787)4. ZHAO Kui, HAO Jian-Kui , HU Yan-Le et al. Nuclear Instruments andMethods in Physics Research 2001, A474: 564-5685. Boscolo I, Michelato P. Nucl. Instrum. Methods, 2000, A445: 389-3936. Aulenbachert K. RF Guns and the Production of Polarized Electrons.CLIC Note 303 01. 05. 1996, NLC-Not e 20 Distribution: sources/injectors SLAC, 1May 19967. Kong S H, Kinross-Wright J, Nguyen D C et al. Nucl . Instrum Methods, 1995 A358: 272 - 2758. XIANG Rong, LIN Lin, ZHANG Bao-Cheng et al. Atomic Energy Science and Technology, China, 2004, 38( 2) : 185-188 (in Chinese)(向蓉，林林，张保澄等.原子能科学技术，2004 , 38 (2) : 185-188)

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[2]	V.V.Bekhterev¹ , S.L.Bogomolov¹ , V.I.Datskov² , V.M.Drobin² , S.N.Dmitriev¹ , A.A.Efremov¹ , V.N.Loginov¹ , A.N.Lebedev¹ , H.Malinowski³ , V.V.Seleznev² , A.Shishov² , G.P.Tsvineva² . The Project of the Superconducting ECR Ion Source DECRIS-SC2. Chinese Physics C, 2007, 31(S1): 23-26.
[3]	LIU Bo , GU Meng-Ping , WANG Shu-Hong , CHI Yun-Long , YANG Xing-Wang , TIAN Shuang-Min , LIU Wei-Bin , YE Qiang . Experiment and Operation of BEPCⅡ Electron Gun System. Chinese Physics C, 2006, 30(5): 466-469.
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[10]	GUO Zhi-Yuan , QIN Qing , ZHANG Chuang , MA Li . Study on Beam Photoelectron Instability in BEPC. Chinese Physics C, 2001, 25(3): 251-257.
[11]	HU Yan-Le , ZHAO Kui , CHEN Jia-Er , ZHANG Bao-Cheng , HAO Jian-Kui , WANG Li-Fang . Design of a New DC-RF Injector Used in High Average Power FEL. Chinese Physics C, 2001, 25(8): 787-792.
[12]	ZHAO Qiang , LI Yong-Gui . Design Studies of a Photocathode RF Gun for Short-Wavelength FELs. Chinese Physics C, 2001, 25(7): 696-700.
[13]	Chen Pengfei , Zhang Mingchao , Li Xinmin , Wang Yuhong . Research and Design of Electron Gun of Electrocurtain. Chinese Physics C, 1998, 22(6): 564-569.
[14]	Geng Rongli , Song Jinhu , Yu Jin . Studies on a Laser Driven Photoemissive High-Brightness Electron Source and Novel Photocathodes. Chinese Physics C, 1997, 21(1): 67-74.
[15]	Tang Chuanxiang , Wu Yuanming , Wang Youzhi , Zhao Xinqiao , Lin Yuzheng , Xie Jialin . Experimeotal Study of a Multi - Cavity BF Gun With Thermionic Cathode. Chinese Physics C, 1997, 21(5): 470-474.
[16]	Tang Chuanxiang , Lin Yuzheng , Tong Dechun , Wu Yuanming , Wang Youzhi , Zhao Xinqiao , Xie Jialin . B&D of a Multi-cavity RF Gun With Thermionic Cathode for BFEL. Chinese Physics C, 1997, 21(4): 378-383.
[17]	Tang Chuanxiang , Yang Yue , Lin Yuzheng . Simulation of RF Thermionic Gun. Chinese Physics C, 1996, 20(4): 376-384.
[18]	Huang Yongzhang , Wu Gang . An Re-entrant Cavity and Its Cathode Structure for the Thermionic Microwave Gun. Chinese Physics C, 1994, 18(7): 658-663.
[19]	HUANG Yong-Zhang , TENG Ke-Jian , XIE Jia-Lin . Design and Fabrication of Alpha Magnet for an Microwave Electron Gun. Chinese Physics C, 1993, 17(9): 790-795.
[20]	XIE Jia-Lin , GAO Jie , HUANG Yong-Zhang , ZHANG Ren-Shan , WANG You-Zhi . THERMIONIC CATHODE MICROWAVE ELECTRON GUN. Chinese Physics C, 1990, 14(7): 577-584.

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XIANG Rong, QUAN Sheng-Wen, LIN Lin, DING Yuan-Tao, LU Xiang-Yang, JIAO Fei, WANG Gui-Mei and ZHAO Kui. Research and Fabrication of the Photocathodes for DC-SC Photoinjector[J]. Chinese Physics C, 2004, 28(7): 771-774.

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Received: 2003-10-21
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Research and Fabrication of the Photocathodes for DC-SC Photoinjector

Corresponding author: XIANG Rong,

RF Superconducting Accelerator Laboratory,Institute of Heavy lon Physics,Peking University,Beijing 100871,China

Received Date: 2003-10-21

Accepted Date: 1900-01-01

Available Online: 2004-07-05

Abstract: DC-SC photoinjector is a new injector based on the laser-driven photocathode. It is designed to produce the electron beam with high average current required by high average power FEL experiments. For this projector, Cs₂Te and Cs₃Sb photocathodes are fabricated in a self-designed preparation chamber, which is bakable and the vacuum can reach values of 10^－6Pa. Cs₂Te is excited by 266nm UV laser, and its quantum efficiency(QE) is above 2.5% for more than 50 hours, and the QE of Cs₃Sb at 532nm is about 2% and stable for only several hours in vacuum. They can provide enough electrons for our electron gun. Because of its stability, Cs₂Te is adopted in the test facility of the DC-SC photoinjector.

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Research and Fabrication of the Photocathodes for DC-SC Photoinjector

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