High-energy-density electron beam generation in ultra intense laser-plasma interaction

By using a two-dimensional particle-in-cell simulation,we demonstrate a scheme for highenergy-density electron beam generation by irradiating an ultra intense laser pulse onto an aluminum（Al） target.With the laser having a peak intensity of 4×10^23W cm^-2,a high quality electron beam with a maximum...

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Published inPlasma science & technology Vol. 19; no. 1; pp. 1 - 6
Main Author 刘建勋 马燕云 杨晓虎 赵军 余同普 邵福球 卓红斌 甘龙飞 张国博 赵媛 杨靖康
Format Journal Article
LanguageEnglish
Published 2017
Subjects
光束发散角
实验室天体物理学
最大密度
激光等离子体相互作用
电子束
超强激光脉冲
超高强度
高能量密度
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Summary:By using a two-dimensional particle-in-cell simulation,we demonstrate a scheme for highenergy-density electron beam generation by irradiating an ultra intense laser pulse onto an aluminum（Al） target.With the laser having a peak intensity of 4×10^23W cm^-2,a high quality electron beam with a maximum density of 117 nc and a kinetic energy density up to8.79×10^18J m^-3 is generated.The temperature of the electron beam can be 416 Me V,and the beam divergence is only 7.25°.As the laser peak intensity increases（e.g.,1024 W cm^-2）,both the beam energy density（3.56×10^19J m^-3） and the temperature（545 Me V） are increased,and the beam collimation is well controlled.The maximum density of the electron beam can even reach 180 nc.Such beams should have potential applications in the areas of antiparticle generation,laboratory astrophysics,etc.
Bibliography:By using a two-dimensional particle-in-cell simulation,we demonstrate a scheme for highenergy-density electron beam generation by irradiating an ultra intense laser pulse onto an aluminum（Al） target.With the laser having a peak intensity of 4×10^23W cm^-2,a high quality electron beam with a maximum density of 117 nc and a kinetic energy density up to8.79×10^18J m^-3 is generated.The temperature of the electron beam can be 416 Me V,and the beam divergence is only 7.25°.As the laser peak intensity increases（e.g.,1024 W cm^-2）,both the beam energy density（3.56×10^19J m^-3） and the temperature（545 Me V） are increased,and the beam collimation is well controlled.The maximum density of the electron beam can even reach 180 nc.Such beams should have potential applications in the areas of antiparticle generation,laboratory astrophysics,etc.
34-1187/TL
ultra intense laser, plasma, high-energy-density, electron beam
Jianxun LIU1,2, Yanyun MA1,3,4, Xiaohu YANG1, Jun ZHAO1, Tongpu YU1, Fuqiu SHAO1, Hongbin ZHUO1, Longfei GAN1, Guobo ZHANG1, Yuan ZHAO1 and Jingkang YANG1（1 College of Science, National University of Defense Technology, Changsha 410073, People＇s Republic of China; 2 College of Electronic Engineering, Wuhan 430019, People＇s Republic of China; 3 IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, People＇s Republic of China; 4 Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621000, People＇s Republic of China）
ISSN:1009-0630
DOI:10.1088/1009-0630/19/1/015001