Proton acceleration from microdroplet spray by weakly relativistic femtosecond laser pulses

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	Proton acceleration from microdroplet spray by weakly relativistic femtosecond laser pulses
	Peng, XY ; Zhang, J ; Zheng, J ; Sheng, ZM ; Xu, MH ; Zheng, ZY ; Liang, TJ ; Li, YT ; Dong, QL ; Yuan, XH ; Li, YJ ; Li, HM
刊名	PHYSICAL REVIEW E
	2006
卷号	74 期号:3
关键词	HIGH-INTENSITY LASER ION-ACCELERATION PLASMA INTERACTIONS SOLID TARGETS TRANSPORT CLUSTERS ELECTRON EMISSION TRACKS BEAMS
ISSN号	1539-3755
通讯作者	Zhang, J (reprint author), Chinese Acad Sci, Inst Phys, Key Lab Opt Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	Angular distribution of protons is measured from ethanol droplet spray irradiated by linearly polarized 150 fs laser pulses at an intensity of 1.1x10(16) W/cm(2). Fast protons (with energies > 16 keV) with an anisotropic distribution can be observed only in or near the polarization plane of the laser fields, while the slow protons (with energies <= 16 keV) emit with nearly an isotropic distribution. Two-dimensional particle-in-cell simulations suggest that three groups of protons originate from different acceleration regimes in the laser-droplet interaction. The first group with the highest energies is accelerated backwards by the anisotropic charge-separation field near the front surface (laser-droplet interaction side) due to the resonance absorption; the second group (forward emission) is generated by the target-normal sheath acceleration mechanism; and the third group, with the lowest energies, is accelerated by the hydrodynamic expansion of the droplet plasmas.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/51561]
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	Peng, XY,Zhang, J,Zheng, J,et al. Proton acceleration from microdroplet spray by weakly relativistic femtosecond laser pulses[J]. PHYSICAL REVIEW E,2006,74(3).
APA	Peng, XY.,Zhang, J.,Zheng, J.,Sheng, ZM.,Xu, MH.,...&Li, HM.(2006).Proton acceleration from microdroplet spray by weakly relativistic femtosecond laser pulses.PHYSICAL REVIEW E,74(3).
MLA	Peng, XY,et al."Proton acceleration from microdroplet spray by weakly relativistic femtosecond laser pulses".PHYSICAL REVIEW E 74.3(2006).