The collimation of intense relativistic electron beams generated by ultra-intense femtosecond laser in nanometer-scale solid fiber array

被引：1
|
作者：
Liao, Leng [1 ,2 ]
Wu, Weidong [2 ]
Wang, Chaoyang [2 ]
Zhou, Minjie [2 ]
Fu, Zhibing [2 ]
Tang, Yongjian [2 ]
机构：
[1] Chongqing Jiaotong Univ, Sch Sci, Chongqing 400074, Peoples R China
[2] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 08期
基金：
中国国家自然科学基金;
关键词：
FUSION IGNITION; PLASMA; PETAWATT; TRANSPORT; DENSITY;
D O I：
10.1063/1.4865099
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A scheme to collimate the ultra-intense laser generated MeV electrons by nanometer-scale solid fiber array is proposed. Unlike previous resistivity-structured target schemes, not the magnetic field but the electric field due to the anisotropic resistivity acts to collimate the divergent fast electrons. This concept is well supported by analytical estimation and numerical calculation. The measurements of collimated MeV electron beams at rear of carbon nanotube arrays irradiated by intense femtosecond laser show the viability of this scheme. These results indicate that potential applications include radiography, fast electron beam focusing, and perhaps the electron collimation for fast ignition of inertial confined fusion. (C) 2014 AIP Publishing LLC.
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页数：5
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