Particle-in-cell simulations of plasma accelerators and electron-neutral collisions
Particle-in-cell simulations of plasma accelerators and electron-neutral collisions
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等离子体加速器和电子中性碰撞的粒子在细胞模拟
DOI：
10.1103/physrevstab.4.101302
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发表时间：
2001
影响因子：
--
通讯作者：
B. Shadwick
中科院分区：
文献类型：
--
作者：
D. Bruhwiler;R. Giacone;J. Cary;J. Verboncoeur;P. Mardahl;E. Esarey;W. Leemans;B. Shadwick
我们使用面向对象的粒子单元程序XOOPIC对束流驱动和激光驱动的等离子体尾迹场加速器进行了二维模拟。XOOPIC是时间明确的、完全电磁的、能够在大规模并行超级计算机上运行的。对低(约)10(Sup 16)W/cm(Sup 2)和高(约)10(Sup 18)W/cm(Sup 2)峰值激光脉冲的激光尾迹场进行了模拟，结果与理论和流体模拟基本一致。在斯坦福直线加速器中心的E-157束流尾场实验中，30GeV的电子束穿过1m的预电离锂等离子体，在柱状几何结构下进行了模拟，得到了与前人工作很好的一致。我们简要描述了这项工作需要对XOOPIC进行的一些更重要的修改，并总结了在粒子-单元代码中模拟相对论电子-中性碰撞的相关问题。
We present 2-D simulations of both beam-driven and laser-driven plasma wakefield accelerators, using the object-oriented particle-in-cell code XOOPIC, which is time explicit, fully electromagnetic, and capable of running on massively parallel supercomputers. Simulations of laser-driven wakefields with low ({approx}10{sup 16} W/cm{sup 2}) and high ({approx}10{sup 18} W/cm{sup 2}) peak intensity laser pulses are conducted in slab geometry, showing agreement with theory and fluid simulations. Simulations of the E-157 beam wakefield experiment at the Stanford Linear Accelerator Center, in which a 30 GeV electron beam passes through 1 m of preionized lithium plasma, are conducted in cylindrical geometry, obtaining good agreement with previous work. We briefly describe some of the more significant modifications of XOOPIC required by this work, and summarize the issues relevant to modeling relativistic electron-neutral collisions in a particle-in-cell code.