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

Abstract
HTML
Reference
Related

PDF

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)

[1]	XU Wen-Can , QUAN Sheng-Wen , ZHAO Kui , ZHU Feng . Lorentz detuning and tuning system study of 3+1/2cell DC-SC photo-injector for PKU-FEL. Chinese Physics C, 2008, 32(3): 215-217. doi: 10.1088/1674-1137/32/3/011
[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]	He Xiao-Zhong , TANG Chuan-Xiang , HUANG Wen-Hui , ZHENG Shu-Xin , SHI Jia-Ru , CHEN Huai-Bi , DU Tai-Bin , CHENG Cheng , TONG De-Chun , LIN Yu-Zheng . RF Measurement and High Power Test of a BNL/KEK/SHI Photocathode RF Gun. Chinese Physics C, 2006, 30(S1): 81-83.
[4]	DU Qiang , He Xiao-Zhong , HUANG Wen-Hui , LI Jian-Min , TANG Chuan-Xiang , SUN Da-Rui , DAI Jian-Ping . Timing Jitter Sensitivity on Beam Dynamics in Photocathode RF Gun. Chinese Physics C, 2006, 30(S1): 34-36.
[5]	LIU Bo , GU Meng-Ping , CHi-Yun-Long , YANG Xing-Wang , TIAN Shuang-Min . Study on BEPC Experimental Electron Gun System. Chinese Physics C, 2005, 29(5): 507-511.
[6]	HU Yuan , TANG Chuan-Xiang , CHEN Huai-Bi , TONG De-Chun , LIN Yu-Zheng . The Research of Multi-cell Thermionic RF Gun Injector Based on X-band DAW Accelerating Structure. Chinese Physics C, 2005, 29(7): 700-704.
[7]	LU Xiang-Yang , LIN Lin , ZHAO Kui , ZHANG Shi-Wen . Drive Laser System of a High Average Current Photocathode Electron Gun in PKU. Chinese Physics C, 2004, 28(8): 881-884.
[8]	LIU Sheng-Guang , WANG Ming-Kai , SUN Da-Rui , GU Xiao-Feng . Research on the Synchronization System of Ultrafast Laser and the S-Band Microwave. Chinese Physics C, 2004, 28(12): 1278-1281.
[9]	HE Xiao-Zhong , TANG Chuan-Xiang , HUANG Wen-Hui , LIN Yu-Zheng . Researches on Thermal Emittance of Metal Cathode in Photoinjectors. Chinese Physics C, 2004, 28(9): 1007-1012.
[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.

Access

Get Citation

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.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3122)
PDF Downloads(583)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
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.

HTML

Reference (1)

Research and Fabrication of the Photocathodes for DC-SC Photoinjector

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article