Collisional effects on the generation of fast electrons in fast ignition   scheme

doi:10.1063/1.4775779

CORC > 北京大学 > 工学院

	Collisional effects on the generation of fast electrons in fast ignition scheme
	Wang, Wei-wu ; Cai, Hong-bo ; Jia, Qing ; Zhu, Shao-ping
刊名	等离子体物理学
	2013
关键词	LASER-SOLID INTERACTIONS PARTICLE SIMULATIONS FUSION IGNITION PLASMA TRANSPORT DENSITY DRIVEN PULSES LIGHT
DOI	10.1063/1.4775779
英文摘要	The effects of collision on the generation and transportation of fast electrons produced by ultra-intense laser pulse in overdense plasma for densities ranging from below to 400 times critical density are investigated by collisional particle-in-cell code. It is found that a relatively stable state of fast electron energy flux exists in the simulations, where collision contributes to increasing the production of fast electrons. The unexpected increase of production is attributed to the efficient local heating of the thermal electrons, which results in higher thermal pressure and less steepened interface. Therefore, fast electrons can be effectively accelerated through 2 omega oscillation from J x B force in the collisional case, while it is suppressed in the collisionless case because of the highly steepened plasma density. The collisional effects on the transportation of fast electrons in the solid target are also discussed. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4775779]; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000317286200054&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Physics, Fluids & Plasmas; SCI(E); EI; 2; ARTICLE; 1; 20
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/290685]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Wei-wu,Cai, Hong-bo,Jia, Qing,et al. Collisional effects on the generation of fast electrons in fast ignition scheme[J]. 等离子体物理学,2013.
APA	Wang, Wei-wu,Cai, Hong-bo,Jia, Qing,&Zhu, Shao-ping.(2013).Collisional effects on the generation of fast electrons in fast ignition scheme.等离子体物理学.
MLA	Wang, Wei-wu,et al."Collisional effects on the generation of fast electrons in fast ignition scheme".等离子体物理学 (2013).