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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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