Effects of shock waves on spatial distribution of proton beams in ultrashort laser-foil interactions

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	Effects of shock waves on spatial distribution of proton beams in ultrashort laser-foil interactions
	Xu, MH ; Li, YT ; Yuan, XH ; Yu, QZ ; Wang, SJ ; Zhao, W ; Wen, XL ; Wang, GC ; Jiao, CY ; He, YL ; Zhang, SG ; Wang, XX ; Huang, WZ ; Gu, YQ ; Zhang, J
刊名	PHYSICS OF PLASMAS
	2006
卷号	13 期号:10
关键词	HIGH-INTENSITY LASER ION-ACCELERATION PLASMA GENERATION TARGETS PULSES SOLIDS
ISSN号	1070-664X
通讯作者	Zhang, J: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China.
中文摘要	The characteristics of proton beam generated in the interaction of an ultrashort laser pulse with a large prepulse with solid foils are experimentally investigated. It is found that the proton beam emitted from the rear surface is not well collimated, and a "ring-like" structure with some "burst-like" angular modulation is presented in the spatial distribution. The divergence of the proton beam reduces significantly when the laser intensity is decreased. The "burst-like" modulation gradually fades out for the thicker target. It is believed that the large divergence angle and the modulated ring structure are caused by the shock wave induced by the large laser prepulse. A one-dimensional hydrodynamic code, MED103, is used to simulate the behavior of the shock wave produced by the prepulse. The simulation indicates that the rear surface of the foil target is significantly modified by the shock wave, consequently resulting in the experimental observations. (c) 2006 American Institute of Physics.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/36802]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Xu, MH,Li, YT,Yuan, XH,et al. Effects of shock waves on spatial distribution of proton beams in ultrashort laser-foil interactions[J]. PHYSICS OF PLASMAS,2006,13(10).
APA	Xu, MH.,Li, YT.,Yuan, XH.,Yu, QZ.,Wang, SJ.,...&Zhang, J.(2006).Effects of shock waves on spatial distribution of proton beams in ultrashort laser-foil interactions.PHYSICS OF PLASMAS,13(10).
MLA	Xu, MH,et al."Effects of shock waves on spatial distribution of proton beams in ultrashort laser-foil interactions".PHYSICS OF PLASMAS 13.10(2006).