Enhancement of proton acceleration by a right-handed circularly   polarized laser interaction with a cone target exposed to a longitudinal   magnetic field

doi:10.1063/1.4984246

CORC > 北京大学 > 工学院

	Enhancement of proton acceleration by a right-handed circularly polarized laser interaction with a cone target exposed to a longitudinal magnetic field
	Gong, J. X. ; Cao, L. H. ; Pan, K. Q. ; Xiao, K. D. ; Wu, D. ; Zheng, C. Y. ; Liu, Z. J. ; He, X. T.
刊名	PHYSICS OF PLASMAS
	2017
关键词	FAST IGNITION DRIVEN FUSION BEAMS
DOI	10.1063/1.4984246
英文摘要	Our previous research [J. X. Gong et al. Phys. Plasmas 24, 033103 (2017)] shows that in the presence of an external longitudinal magnetic field, there is no cut-off density when a right-handed (RH-) circularly polarized (CP) laser propagates in the plasmas. In this work, the proton acceleration driven by an RH-CP laser interaction with a pre-magnetized cone target filled with a preformed plasma is investigated under the mechanism of target normal sheath acceleration. The strength of the external magnetic field considered in this paper is comparable to that of the incident laser. The two-dimensional particle-in-cell simulation results show that with an external longitudinal magnetic field, both the energy and yield of protons accelerated by the sheath electric field at the rear of the target are remarkably increased because of the higher coupling efficiency from RH-CP laser energy to electrons and the more efficient electron acceleration. Electrons can be converged remarkably by the external magnetic field and the divergence of protons can be controlled evidently by the collimated electrons. The maximum cut-off energy of protons with an imposed longitudinal magnetic field can be promoted to be as high as 82MeV. Detailed simulation results show that the maximum energy of protons increases with the increasing initial external magnetic field. Published by AIP Publishing.; National Key Research and Development Program of China [2016YFA0401101]; National Natural Science Foundation of China [11475030, 11375032, 11575035, 11435011]; SCI(E); ARTICLE; 5; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473607]
专题	工学院
推荐引用方式 GB/T 7714	Gong, J. X.,Cao, L. H.,Pan, K. Q.,et al. Enhancement of proton acceleration by a right-handed circularly polarized laser interaction with a cone target exposed to a longitudinal magnetic field[J]. PHYSICS OF PLASMAS,2017.
APA	Gong, J. X..,Cao, L. H..,Pan, K. Q..,Xiao, K. D..,Wu, D..,...&He, X. T..(2017).Enhancement of proton acceleration by a right-handed circularly polarized laser interaction with a cone target exposed to a longitudinal magnetic field.PHYSICS OF PLASMAS.
MLA	Gong, J. X.,et al."Enhancement of proton acceleration by a right-handed circularly polarized laser interaction with a cone target exposed to a longitudinal magnetic field".PHYSICS OF PLASMAS (2017).