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	Analysis and elimination of the distortion in electro-optic measurement of low-energy subpicosecond electron bunches
	Zhu, Li-Guo ; Pu, Yi-Kang ; Li, Ze-Ren
	2010-10-12 ; 2010-10-12
关键词	Electro-optic Electron bunch THz pulse Tikhonov regularization DIFFRACTION RADIATION CIRCULAR APERTURE SUBMILLIMETER PULSES BEAM Instruments & Instrumentation Nuclear Science & Technology Physics, Particles & Fields Spectroscopy
中文摘要	Electro-optic (EO) technique is widely used to characterize longitudinal profile of electron bunches. However, electron bunches with a low energy (similar to MeV) and a short time duration (similar to subpicosecond) cannot be well resolved by EO measurement, which leads to distortion. The convolution theorem is proposed to analyze this distortion in EO measurement. And the factors leading to the distortion are discussed, among which the divergent Coulomb field of electrons is the main one. Distortion elimination and reconstruction of electron bunch profiles from detected EO signals is an ill-posed inverse problem. This paper proposes an iterative Tikhonov regularization method to solve this inverse problem and to reconstruct electron bunch profiles from the EO signals detected by the EO measurement. The feasibility of our proposal is tested and numerically verified based on subpicosecond electron bunches with several MeV energy. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78844]
专题	清华大学
推荐引用方式 GB/T 7714	Zhu, Li-Guo,Pu, Yi-Kang,Li, Ze-Ren. Analysis and elimination of the distortion in electro-optic measurement of low-energy subpicosecond electron bunches[J],2010, 2010.
APA	Zhu, Li-Guo,Pu, Yi-Kang,&Li, Ze-Ren.(2010).Analysis and elimination of the distortion in electro-optic measurement of low-energy subpicosecond electron bunches..
MLA	Zhu, Li-Guo,et al."Analysis and elimination of the distortion in electro-optic measurement of low-energy subpicosecond electron bunches".(2010).

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