Generation of high-quality electron beams from a laser-based advanced accelerator  

作　　者：Ahmed M.M.Elsied Nasr A.M.Hafz 李松 Mohammad Mirzaie Thomas Sokollik 张杰 

机构地区：[1]Key Laboratory for Laser Plasmas (MOE) and Department of Physics & Astronomy,Shanghai Jiao Tong University

出　　处：《Chinese Physics C》2015年第6期98-103,共6页中国物理C（英文版）

基　　金：Supported by 973 National Basic Research Program of China(2013CBA01504);Natural Science Foundation of China NSFC(11121504,11334013,11175119,11374209)

摘　　要：At Shanghai Jiao Tong University（SJTU） we have established a research laboratory for advanced acceleration research based on high-power lasers and plasma technologies. In a primary experiment based on the laser wakefield acceleration（LWFA） scheme, multi-hundred Me V electron beams of reasonable quality are generated using 20–40 TW, 30 femtosecond laser pulses interacting independently with helium, neon, nitrogen and argon gas jet targets. The laser-plasma interaction conditions are optimized for stabilizing the electron beam generation from each type of gas. The electron beam pointing angle stability and divergence angle as well as the energy spectra from each gas jet are measured and compared.At Shanghai Jiao Tong University（SJTU） we have established a research laboratory for advanced acceleration research based on high-power lasers and plasma technologies. In a primary experiment based on the laser wakefield acceleration（LWFA） scheme, multi-hundred Me V electron beams of reasonable quality are generated using 20–40 TW, 30 femtosecond laser pulses interacting independently with helium, neon, nitrogen and argon gas jet targets. The laser-plasma interaction conditions are optimized for stabilizing the electron beam generation from each type of gas. The electron beam pointing angle stability and divergence angle as well as the energy spectra from each gas jet are measured and compared.

关 键 词：accelerator pointing helium acceleration divergence interacting hundred independently Electron stabilizing 

分 类 号：O531[理学—等离子体物理]