Emittance measurement & optimization for the photocathode RF gun with laser profile shaping
Liu SG(刘圣广); Liu, SG; Fukuda, M; Araki, S; Terunuma, N; Urakawa, J
刊名CHINESE PHYSICS C
2010
卷号34期号:5页码:584-588
关键词laser shaping space charge effect emittance photocathode RF gun
学科分类Physics
通讯作者[Liu Sheng-Guang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Fukuda, Masafumi ; Araki, Sakae ; Terunuma, Nobuhiro ; Urakawa, Junji] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
文章类型Article
英文摘要The Laser Undulator Compact X-ray source (LUCX) is a test bench for a compact high brightness X-ray generator, based on inverse Compton Scattering at KEK, which requires high intensity multi-bunch trains with low transverse emittance. A photocathode RF gun with emittance compensation solenoid is used as an electron source. Much endeavor has been made to increase the beam intensity in the multi-bunch trains. The cavity of the RF gun is tuned into an unbalanced field in order to reduce space charge effects, so that the field gradient on the cathode surface is relatively higher when the forward RF power into gun cavity is not high enough. A laser profile shaper is employed to convert the driving laser profile from Gaussian into uniform. In this research we seek to find the optimized operational conditions for the decrease of the transverse emittance. With the uniform driving laser and the unbalanced RF gun, the RMS transverse emittance of a 1 nC bunch has been improved effectively from 5.46 pi mm.mrad to 3.66 pi mm.mrad.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000277294100014
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238030
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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GB/T 7714
Liu SG,Liu, SG,Fukuda, M,et al. Emittance measurement & optimization for the photocathode RF gun with laser profile shaping[J]. CHINESE PHYSICS C,2010,34(5):584-588.
APA 刘圣广,Liu, SG,Fukuda, M,Araki, S,Terunuma, N,&Urakawa, J.(2010).Emittance measurement & optimization for the photocathode RF gun with laser profile shaping.CHINESE PHYSICS C,34(5),584-588.
MLA 刘圣广,et al."Emittance measurement & optimization for the photocathode RF gun with laser profile shaping".CHINESE PHYSICS C 34.5(2010):584-588.
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