Quasistatic capillary discharge plasma model
Quasistatic capillary discharge plasma model
复制标题
准静态毛细管放电等离子体模型
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
W. Kimura
中科院分区：
文献类型：
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作者：
L. Steinhauer;W. Kimura
建立了毛细管放电等离子体的一维准静态模型。这种等离子体可用作产生等离子体波的介质，用于通过诸如激光韦克菲尔德加速或等离子体韦克菲尔德加速的过程来加速电子。等离子体的另一个重要特征是其在毛细管中心附近的固有抛物线密度分布，其可以沿着毛细管沿着引导激光束。该模型旨在作为一种设计工具，以帮助选择毛细管参数，从而获得所需的等离子体特性，例如，等离子体密度和用于引导的匹配激光束半径。外加轴向磁场可以改善激光沟道效应。该模型还能够测量毛细管壁的激光损伤的可能性。结果提出了一个充气毛细管的设计，将在分阶段的电子激光加速激光韦克菲尔德（STELLA-LW）实验进行测试。
A one-dimensional, quasistatic model of a capillary discharge plasma has been developed. Such a plasma is useful as a medium to generate plasma waves for acceleration of electrons via processes such as laser wakefield acceleration or plasma wakefield acceleration. Another important characteristic of the plasma is its intrinsic parabolic density distribution near the center of the capillary, which can channel a laser beam along the capillary. The model is intended to be a design tool to aid in the selection of the capillary parameters in order to obtain desired plasma characteristics, e.g., plasma density and matched laser beam radius for guiding. An optional external axial magnetic field can be included, which improves the laser-channeling effect in some cases. The model also enables a measure of the potential for laser damage of the capillary wall. Results are presented for the design of a gas-filled capillary that will be tested during the staged electron laser acceleration ‐laser wakefield (STELLA-LW) experiment.