Enhancement of injection and acceleration of electrons in a laser wakefield accelerator by using an argon-doped hydrogen gas jet and optically preformed plasma waveguide

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题名:	Enhancement of injection and acceleration of electrons in a laser wakefield accelerator by using an argon-doped hydrogen gas jet and optically preformed plasma waveguide
作者:	Ho,YC;Hung,TS;Yen,CP;Chen,SY;Chu,HH;Lin,JY;Wang,J;Chou,MC
贡献者:	物理學系
关键词:	DENSITY TRANSITION;WAKE FIELDS;PULSES;BEAMS;GENERATION;REGIME
日期:	2011
上传时间:	2012-06-11 10:48:50 (UTC+8)
出版者:	國立中央大學
摘要:	A systematic experimental study on injection of electrons in a gas-jet-based laser wakefield accelerator via ionization of dopant was conducted. The pump-pulse threshold energy for producing a quasi-monoenergetic electron beam was significantly reduced by doping the hydrogen gas jet with argon atoms, resulting in a much better spatial contrast of the electron beam. Furthermore, laser wakefield electron acceleration in an optically preformed plasma waveguide based on the axicon-ignitor-heater scheme was achieved. It was found that doping with argon atoms can also lower the pump-pulse threshold energy in this experimental configuration. (C) 2011 American Institute of Physics. [doi:10.1063/1.3596438]
關聯:	PHYSICS OF PLASMAS
显示于类别:	[物理學系] 期刊論文

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