Generation and measurement of sub-picosecond electron bunch in photocathode rf gun

LI Wei-Wei; HE Zhi-Gang; JIA Qi-Ka

doi:10.1088/1674-1137/37/12/127002

Chinese Physics C> 2013, Vol. 37> Issue(12) : 127002 DOI: 10.1088/1674-1137/37/12/127002

Generation and measurement of sub-picosecond electron bunch in photocathode rf gun

Abstract
HTML
Reference
Related

PDF

Abstract：
We consider a scheme to generate a sub-picosecond electron bunch in the photocathode rf gun by improving the acceleration gradient in the gun, suitably tuning the bunch charge, the laser spot size and the acceleration phase, and reducing the growth of transverse emittance by laser shaping. A nondestructive technique is also reported to measure the electron bunch length, by measuring the high-frequency spectrum of wakefield radiation which is caused by the passage of a relativistic electron bunch through a channel surrounded by a dielectric.

[1]	LI Ji , PEI Yuan-Ji , HU Tong-Ning , CHEN Qu-Shan , FENG Guang-Yao , SHANG Lei , LI Cheng-Long . Design of an electron gun for terahertz radiation source. Chinese Physics C, 2014, 38(4): 047004. doi: 10.1088/1674-1137/38/4/047004
[2]	ZHOU Zu-Sheng , HE Da-Yong , CHI Yun-Long . Electron gun system for NSC KIPT linac. Chinese Physics C, 2014, 38(6): 067006. doi: 10.1088/1674-1137/38/6/067006
[3]	LI Wei-Wei , HE Zhi-Gang , JIA Qi-Ka . Compact narrow-band THz radiation source based on photocathode rf gun. Chinese Physics C, 2014, 38(4): 047003. doi: 10.1088/1674-1137/38/4/047003
[4]	WANG Er-Dong , rg Kewisch , Ilan Ben-Zvi , Andrew Burrill , Trivini Rao , WU Qiong , Animesh Jain , Ramesh Gupta , Doug Holmes , ZHAO Kui . Heat load of a GaAs photocathode in an SRF electron gun. Chinese Physics C, 2011, 35(4): 387-391. doi: 10.1088/1674-1137/35/4/012
[5]	ZHU Xiong-Wei . Study on the W-band photocathode RF gun. Chinese Physics C, 2011, 35(12): 1159-1161. doi: 10.1088/1674-1137/35/12/015
[6]	YIN Da-Yu , LIU Yong , XIA Jia-Wen , LI Peng , ZHAO Yong-Tao , YANG Lei , QI Xin . Study of a magnetic alloy-loaded RF cavity for bunch compression at the CSR. Chinese Physics C, 2010, 34(12): 1879-1882.
[7]	ZHU Xiong-Wei , WANG Shu-Hong , CHEN Sen-Yu . Design study of a L-band photocathode RF injector. Chinese Physics C, 2010, 34(2): 210-213. doi: 10.1088/1674-1137/34/2/010
[8]	ZHANG Jing-Ru , DAI Jian-Ping , GU Qiang , PEI Guo-Xi , ZHAO Ming-Hua , ZHONG Shao-Peng , WANG Xing-Tao , CHEN Yong-Zhong , HOU Mi . Bunch length measurement using a traveling wave RF deflector. Chinese Physics C, 2010, 34(1): 138-142. doi: 10.1088/1674-1137/34/1/026
[9]	LIU Sheng-Guang , Masafumi Fukuda , Sakae Araki , Nobuhiro Terunuma , Junji Urakawa . Emittance measurement & optimization for the photocathode RF gun with laser profile shaping. Chinese Physics C, 2010, 34(5): 584-588. doi: 10.1088/1674-1137/34/5/014
[10]	GAO Jie . Bunch transverse emittance increase in electron storage rings. Chinese Physics C, 2009, 33(7): 572-576. doi: 10.1088/1674-1137/33/7/013
[11]	ZHU Xiong-Wei , WANG Shu-Hong , CHEN Sen-Yu . Design study of a L-band DC photocathode gun. Chinese Physics C, 2009, 33(4): 311-314. doi: 10.1088/1674-1137/33/4/015
[12]	GAO Jie . On the theory of photocathode rf guns. Chinese Physics C, 2009, 33(4): 306-310. doi: 10.1088/1674-1137/33/4/014
[13]	SHI Jia-Ru , CHEN Huai-Bi , TANG Chuan-Xiang , HUANG Wen-Hui , DU Ying-Chao , ZHENG Shu-Xin , REN Li . RF deflecting cavity for bunch length measurement in Tsinghua Thomson scattering X-ray source. Chinese Physics C, 2009, 33(S2): 161-164. doi: 10.1088/1674-1137/33/S2/042
[14]	TANG Chuan-Xiang , LIU Xiao-Han . Ultra-low emittance X-band photocathode RF gun. Chinese Physics C, 2009, 33(S2): 102-104. doi: 10.1088/1674-1137/33/S2/026
[15]	DENG Hai-Xiao , DAI Zhi-Min . Harmonic operation of high gain harmonic generation free electron laser. Chinese Physics C, 2008, 32(7): 593-598. doi: 10.1088/1674-1137/32/7/017
[16]	DENG Hai-Xiao , DAI Zhi-Min . Gain of harmonic generation in high gain free electron laser. Chinese Physics C, 2008, 32(4): 297-302. doi: 10.1088/1674-1137/32/4/012
[17]	GU Qiang , ZHAO Zhen-Tang , TONG De-Chun , CHEN Li-Fang , XU Xiu-Min . RF gun for an intense THz radiation source. Chinese Physics C, 2008, 32(8): 657-660. doi: 10.1088/1674-1137/32/8/014
[18]	SHI Jia-Ru , CHEN Huai-Bi , TANG Chuan-Xiang , HUANG Wen-Hui , DU Ying-Chao , ZHENG Shu-Xin , REN Li . RF deflecting cavity design for bunch length measurement of photoinjector at Tsinghua University. Chinese Physics C, 2008, 32(10): 837-841. doi: 10.1088/1674-1137/32/10/014
[19]	Li Jin , Mao Zepu . Measurement of the Bunch Length of Beijing Electron Positron Collider. Chinese Physics C, 1991, 15(S3): 219-225.
[20]	Xie Jialin , Gao Jie , Huang Yonzhang , Zhang Renshan , Wang Youzhi . Thermionic Cathode Microwave Electron Gun. Chinese Physics C, 1990, 14(S4): 339-348.

Access

Get Citation

LI Wei-Wei, HE Zhi-Gang and JIA Qi-Ka. Generation and measurement of sub-picosecond electron bunch in photocathode rf gun[J]. Chinese Physics C, 2013, 37(12): 127002. doi: 10.1088/1674-1137/37/12/127002

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2013-02-27
Revised: 1900-01-01

Article Metric

Article Views(1879)
PDF Downloads(247)
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

Generation and measurement of sub-picosecond electron bunch in photocathode rf gun

Corresponding author: HE Zhi-Gang,

Received Date: 2013-02-27
Accepted Date: 1900-01-01
Available Online: 2013-12-05

Abstract: We consider a scheme to generate a sub-picosecond electron bunch in the photocathode rf gun by improving the acceleration gradient in the gun, suitably tuning the bunch charge, the laser spot size and the acceleration phase, and reducing the growth of transverse emittance by laser shaping. A nondestructive technique is also reported to measure the electron bunch length, by measuring the high-frequency spectrum of wakefield radiation which is caused by the passage of a relativistic electron bunch through a channel surrounded by a dielectric.