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). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论