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	Time-dependent energetic proton acceleration and scaling laws in ultraintense laser-pulse interactions with thin foils
	Huang, Yongsheng ; Bi, Yuanjie ; Shi, Yijin ; Wang, Naiyan ; Tang, Xiuzhang ; Gao, Zhe
	2010-10-12 ; 2010-10-12
关键词	foils plasma density plasma light propagation proton beams PLASMA BUNCH EXPANSION VACUUM DRIVEN Physics, Fluids & Plasmas Physics, Mathematical
中文摘要	A two-phase model, where the plasma expansion is an isothermal one when laser irradiates and a following adiabatic one after laser ends, has been proposed to predict the maximum energy of the proton beams induced in the ultraintense laser-foil interactions. The hot-electron recirculation in the ultraintense laser-solid interactions has been accounted in and described by the time-dependent hot-electron density continuously in this model. The dilution effect of electron density as electrons recirculate and spread laterally has been considered. With our model, the scaling laws of maximum ion energy have been achieved and the dependence of the scaling coefficients on laser intensity, pulse duration, and target thickness have been obtained. Some interesting results have been predicted: the adiabatic expansion is an important process of the ion acceleration and cannot be neglected; the whole acceleration time is about 10-20 times of laser-pulse duration; the larger the laser intensity, the more sensitive the maximum ion energy to the change of focus radius, and so on.
语种	英语 ; 英语
出版者	AMER PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78804]
专题	清华大学
推荐引用方式 GB/T 7714	Huang, Yongsheng,Bi, Yuanjie,Shi, Yijin,et al. Time-dependent energetic proton acceleration and scaling laws in ultraintense laser-pulse interactions with thin foils[J],2010, 2010.
APA	Huang, Yongsheng,Bi, Yuanjie,Shi, Yijin,Wang, Naiyan,Tang, Xiuzhang,&Gao, Zhe.(2010).Time-dependent energetic proton acceleration and scaling laws in ultraintense laser-pulse interactions with thin foils..
MLA	Huang, Yongsheng,et al."Time-dependent energetic proton acceleration and scaling laws in ultraintense laser-pulse interactions with thin foils".(2010).

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