Analysis and Calculation on Electron Bunch Length Measurementby Using CDR

LIU Ai-Qin; LOU Zheng-Ping; CHEN You-Zhong; ZHOU Wei-Min; Dai Zhi-Min

Chinese Physics C> 2005, Vol. 29> Issue(5) : 517-523

Analysis and Calculation on Electron Bunch Length Measurementby Using CDR

Shanghai Institute of Applied Physics,Shanghai 201800,China

Abstract
HTML
Reference
Related

PDF

Abstract：
Measurement of electron bunch length through its generated coherent diffraction radiation (CDR) via optical autocorrelation is a new non-intercepting frequency domain diagnostics technique developed in accelerator fields recently. In this paper, the CDR emitted by femto-second electron bunches provided by the SINAP linac are analyzed and numerically calculated, experimental designs on CDR generation and bunch length measurement are presented, and the beam splitter affected interferogram is simulated. As a result, broad band continuous and high intensity CDR covering a range from far-infrared to mm-wave region can be obtained by directly using these bunches. CDR energy is mainly concentrated near the beam axis and can be up to several millijoules for Gaussian bunches. We use a far-infrared Michelson interferometer and a Golay detector to measure the autocorrelation interferogram of CDR, considering the interference effects caused by the beam splitter, the electron bunch length can be easily obtained, from which one can derive its electron density distribution.

References

[1]

.LCLS Technical Design Report,SLAC-R2593 LC2414.April,20022.LI Zhi-Hui et al.HEP NP,2003,27(9):831)835 (in Chinese)(李智慧等,高能物理与核物理,2003,27(9):831)835)3.Uesaka U,Ueda T et al.Nucl.Instrum.Methods,1998,A 406:371)3794.Barry W.Proc.of the Workshop on Advanced Beam Instrument ation,KEK,Tsukuba,Japan,April,19915.Kung P,Lihn H,Bocck D et al.Phys.,Rev.,Lett.,1994,73:967)9706.ZHU Jun-Biao et al.HEP NP,2000,24 (2):172)180 (in Chinese)(朱俊彪等.高能物理与核物理,2000,24(2):172)180)7.Shibata Y,Hasebe S,Ishi K et al.Phys.Rev.,1995,E52:6787)67948.Lumpkin A H,Sereno N S,Rule DW.Nucl.Instrum.Methods,2001,A475:470)4759.Settakorn C.Proceedings of the Second Asian Particle Accelerator Conference.Beijing,China,2001.514)51610.Cast ellaoM,VerzilovY,Catani L et al.DIPAC 2001 Proceedings)ES-RF,Grenoble11.Ter Mikaelian M L.High Energy Electromagnet ic Processes in Condensed Media.In:Wiley Intersciencr.New York:Academic Press,1972.377)38912.Feng B,Oyamada M,Hinode F et al.Nucl.Instrum.and Methods,2001,A475:492)49713.Kinura WD,Fiorito R B,Rule D W.Proceeding of the 1999 Part icleAccelerat ion Conference.New York,1999.487)48914.Nodvick J S,Saxon D S.Phys.Rev.,1954,96:180)18415.Lihn H C,Kung P,Set takorn C et al.Phys.Rev.,1996,A53:6413)641816.Settakon C.Generation and Use of Coherent Transit ion Radiat ion fromShort Electron Bunches.PhD Thesis,St anford University,California,1996.113)116

[1]	MIAO Xi-Xi , LIU Lie . Preliminary Research of the Propagation of Annular IREBS in Coaxial Permanent Magnet Halbach Circuit. Chinese Physics C, 2008, 32(S1): 313-316.
[2]	SUN Da-Rui , XU Jin-Qiang , TANG Kun . Simulation and Error Analysis of Electro-optic Sampling Measurement of Ultrashort Electron Beam Bunch Length. Chinese Physics C, 2008, 32(S1): 121-123.
[3]	DAI Jian-Ping . Adjustment of Energy of BFEL Linac. Chinese Physics C, 2006, 30(S1): 93-95.
[4]	JIANG Xiao-Guo , LI Cheng-Gang , WANG Yuan , DAI Wen-Hua , XIA Lian-Sheng , CHEN Nan , YANG Guo-Jun . Accurate Burst Trigger Mode for Dragon-Ⅰ Electron Beam Measurement System. Chinese Physics C, 2006, 30(8): 784-787.
[5]	DU Ying-Chao , HUANG Wen-Hui , TANG Chuan-Xiang , HUA Jian-Fei , CHENG Cheng , DU Tai-Bin , XIA Bing , He Xiao-Zhong , DU Qiang , ZHENG Shu-Xin , CHEN Huai-Bi , LIN Yu-Zheng . Preliminary Experiments of Thomson Scattering X-ray Source: Measurements of Electron beam's Parameters and Their Influence on the X-ray Performance. Chinese Physics C, 2006, 30(S1): 84-86.
[6]	ZHU Jun-Biao , LI Zhi-Hui , BAI Sha , XIE Jia-Lin . Off-line Experiment on the Bunchlength Diagnostic Device at BFEL. Chinese Physics C, 2006, 30(S1): 78-80.
[7]	XIANA Dao , HUANG Wen-Hui . Diffraction Radiation and Its Applications in Electron Beam Diagnostics. Chinese Physics C, 2006, 30(S1): 75-77.
[8]	JIANG Xiao-Guo , YANG Guo-Jun , ZHANG Kai-Zhi , SHI Jin-Shui , DENG Jian-Jun , WANG Yuan , LI Cheng-Gang . Time-Resolved Measurement System Using Optical Transition Radiation for Electron Beam of High Energy and High Current. Chinese Physics C, 2005, 29(11): 1095-1099.
[9]	YANG Guo-Jun , ZHANG Zhuo , CHEN Si-Fu , LIU Cheng-Jun , LIN Yu-Zheng . Research of Transition Radiation on Intense Electron Beam Diagnostics. Chinese Physics C, 2005, 29(3): 305-311.
[10]	XIANG Dao , HUANG Wen-Hui , HE Xiao-Zhong . Impact of Coherent Synchrotron Radiation on Beam Qualities in a Chicane. Chinese Physics C, 2004, 28(5): 555-559.
[11]	GU An-Jia , DING Yuan-Tao , ZHAO Kui , ZHANG Bao-Cheng , QUAN Sheng-Wen , LU Xiang-Yang , CHEN Jia-Er . A New Measurement of Electron Beam Emittance with Cerenkov Radiation “Double Imaging” Method. Chinese Physics C, 2003, 27(2): 163-168.
[12]	ZHAO Zheng , GUO Zhi-Yuan , LIU De-Kang , MA Li , QIN Qing , WANG Jiu-Qing , XU Gang . Bunch Length Measurement of BEPC with a Streak Camera. Chinese Physics C, 2003, 27(4): 359-362.
[13]	LI Zhi-Hui , DAI Jian-Ping , YANG Xue-Ping , FAN Yao-Hui , XIE Jia-Lin , ZHU Jun-Biao . Analysis and Calculation on Electron Bunch Length Measurement by Using CTR. Chinese Physics C, 2003, 27(9): 831-835.
[14]	ZHANG Yong-Hui , CHEN Hong-Bin , KANG Qiang , CAO Shao-Yun , CHANG An-Bi . Development of Repetition Frequency Electron-Beam Generator Technology. Chinese Physics C, 2002, 26(8): 876-881.
[15]	SUN Ke-Xu , YI Rong-Qing , HUANG Tian-Xuan , CUI Yan-Li , YANG Jia-Min , JIANG Shao-En , DING Yong-Kun , ZHANG Bao-Han , WANG Hong-Bin , WEN Shu-Huai , ZHENG Zhi-Jian , CUI Ming-Qi , ZHU Pei-Ping , ZHAO Yi-Dong , LI Gang , TANG E-Sheng . Applications for Synchrotron Radiation in Inertial Confinement Fusion Research. Chinese Physics C, 2001, 25(S1): 121-127.
[16]	YANG XiaoDong , SONG MingTao , XIA JiaWen , WEI BaoWen , WU JunLi . Adiabatic Expansion of Electron Beam. Chinese Physics C, 2000, 24(12): 1179-1184.
[17]	ZHU JunBiao , LI YongGui , XIE JiaLin . Theoretical Estimation and Experimental Design of High lntensity Coherent Synchrotron Radiation Generated by Short Electron Bunches at BFEL. Chinese Physics C, 2000, 24(2): 172-180.
[18]	Li Yun , Wang Guangwei . Research of Bunch Lengthening of BEPC Ring by Many-Particle Simulation. Chinese Physics C, 1996, 20(10): 950-956.
[19]	LI Jin , MAO Ze-Pu . The Measurement of Bunch Length of Beijing Electron Positron Collider. Chinese Physics C, 1991, 15(5): 385-390.
[20]	Tan Lun-chang . THE USE OF HIGH-ENERGY ELECTRON BEAMS IN A MAGNETIC FIELD FOR RADIATION THERAPY. Chinese Physics C, 1980, 4(1): 128-132.

Access

Get Citation

LIU Ai-Qin, LOU Zheng-Ping, CHEN You-Zhong, ZHOU Wei-Min and Dai Zhi-Min. Analysis and Calculation on Electron Bunch Length Measurementby Using CDR[J]. Chinese Physics C, 2005, 29(5): 517-523.

LIU Ai-Qin, LOU Zheng-Ping, CHEN You-Zhong, ZHOU Wei-Min and Dai Zhi-Min. Analysis and Calculation on Electron Bunch Length Measurementby Using CDR[J]. Chinese Physics C, 2005, 29(5): 517-523. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-09-29
Revised: 2004-11-27

Article Metric

Article Views(4034)
PDF Downloads(559)
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

Analysis and Calculation on Electron Bunch Length Measurementby Using CDR

Corresponding author: LIU Ai-Qin,

Shanghai Institute of Applied Physics,Shanghai 201800,China

Received Date: 2004-09-29

Accepted Date: 2004-11-27

Available Online: 2005-05-05

Abstract: Measurement of electron bunch length through its generated coherent diffraction radiation (CDR) via optical autocorrelation is a new non-intercepting frequency domain diagnostics technique developed in accelerator fields recently. In this paper, the CDR emitted by femto-second electron bunches provided by the SINAP linac are analyzed and numerically calculated, experimental designs on CDR generation and bunch length measurement are presented, and the beam splitter affected interferogram is simulated. As a result, broad band continuous and high intensity CDR covering a range from far-infrared to mm-wave region can be obtained by directly using these bunches. CDR energy is mainly concentrated near the beam axis and can be up to several millijoules for Gaussian bunches. We use a far-infrared Michelson interferometer and a Golay detector to measure the autocorrelation interferogram of CDR, considering the interference effects caused by the beam splitter, the electron bunch length can be easily obtained, from which one can derive its electron density distribution.

HTML

Reference (1)

Analysis and Calculation on Electron Bunch Length Measurementby Using CDR

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article