在laser计划框架下的相对论电子等离子体加速模型
Modelling of laser-plasma acceleration of relativistic electrons in the frame of ESCULAP project
摘要：
我们提出了数值模拟结果的注入和加速的10 MeV，10 pC的电子束在气体电池中产生的等离子体波由2J，45 fs的激光束。这个模型是有关ESCUESCUETM项目中的电子加速的PHIL光注入器被注入到一个气室照射的激光束的LASERIX系统。为了确定激光等离子体结构的最佳参数，对实验进行了广泛的建模。这是用新开发的数字代码WakeTraj完成的。我们提出了一种配置，高度压缩的电子束团的好处，注入的电子束可以有效地耦合到等离子体波和加速到140 MeV，与低于5%的能量扩散。
英文摘要：
We present numerical simulations results on the injection and acceleration of a 10 MeV, 10 pC electrons beam in a plasma wave generated in a gas cell by a 2J, 45 fs laser beam. This modeling is related to the ESCULAP project in which the electrons accelerated by the PHIL photo-injector is injected in a gas cell irradiated by the laser beam of the LASERIX system. Extensive modeling of the experiment was performed in order to determine optimal parameters of the laser plasma configurations. This was done with the newly developed numerical code WakeTraj . We propose a configuration that benefits of a highly compressed electron bunch and for which the injected electron beam can be efficiently coupled to the plasma wave and accelerated up to 140 MeV, with an energy spread lower than 5%.
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