Single shot cathode transverse momentum imaging in high brightness photoinjectors

doi:10.1103/PhysRevAccelBeams.23.043401

	Single shot cathode transverse momentum imaging in high brightness photoinjectors
	Huang, Peng-Wei 1,2; Qian, Houjun 1; Chen, Ye 1; Filippetto, Daniele 3; Gross, Matthias 1; Isaev, Igor 1; Koschitzki, Christian 1; Krasilnikov, Mikhail 1; Lal, Shankar 1; Li, Xiangkun 1; Lishilin, Osip 1; Melkumyan, David 1; Niemczyk, Raffael 1; Oppelt, Anne 1; Sannibale, Fernando 3; Shaker, Hamed 1; Shu, Guan 1; Stephan, Frank 1; Tang, Chuanxiang 2; Vashchenko, Grygorii 1; Wan, Weishi4
	2020-04-22
发表期刊	PHYSICAL REVIEW ACCELERATORS AND BEAMS
ISSN	2469-9888
卷号	23 期号:4
发表状态	已发表
DOI	10.1103/PhysRevAccelBeams.23.043401
摘要	In state of the art photoinjector electron sources, thermal emittance from photoemission dominates the final injector emittance. Therefore, low thermal emittance cathode developments and diagnostics are very important. Conventional thermal emittance measurements for the high gradient gun are time-consuming and thus thermal emittance is not measured as frequently as quantum efficiency during the lifetime of photocathodes, although both are important properties for the photoinjector optimizations. In this paper, a single shot measurement of photoemission transverse momentum, i.e., thermal emittance per rms laser spot size, is proposed for photocathode rf guns. By tuning the gun solenoid focusing, the electrons' transverse momenta at the cathode are imaged to a downstream screen, which enables a single shot measurement of both the rms value and the detailed spectra of the photoelectrons' transverse momenta. Both simulations and proof of principle experiments are reported.
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收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Nuclear ; Physics, Particles & Fields
WOS记录号	WOS:000527532300002
出版者	AMER PHYSICAL SOC
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/119465
专题	大科学中心_PI研究组_万唯实组物质科学与技术学院大科学中心
通讯作者	Huang, Peng-Wei
作者单位	1.DESY, Platanenallee 6, D-15738 Zeuthen, Germany 2.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China 3.Lawrence Berkeley Natl Lab, Berkeley, CA 94704 USA 4.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Huang, Peng-Wei,Qian, Houjun,Chen, Ye,et al. Single shot cathode transverse momentum imaging in high brightness photoinjectors[J]. PHYSICAL REVIEW ACCELERATORS AND BEAMS,2020,23(4).
APA	Huang, Peng-Wei.,Qian, Houjun.,Chen, Ye.,Filippetto, Daniele.,Gross, Matthias.,...&Wan, Weishi.(2020).Single shot cathode transverse momentum imaging in high brightness photoinjectors.PHYSICAL REVIEW ACCELERATORS AND BEAMS,23(4).
MLA	Huang, Peng-Wei,et al."Single shot cathode transverse momentum imaging in high brightness photoinjectors".PHYSICAL REVIEW ACCELERATORS AND BEAMS 23.4(2020).