论文标题
通过磁化无碰撞冲击在扩展实验室等离子体中，电子对电子的动力学模拟
Kinetic simulations of electron pre-energization by magnetized collisionless shocks in expanding laboratory plasmas
论文作者
论文摘要
无碰撞冲击是超音速等离子体流相互作用的空间和天体物理系统中的常见特征，例如在太阳风，螺旋桨和超新星残留物中。最新的实验能力和诊断允许对高弹药冲击的详细实验室研究，因此，这可以成为理解各种天体物理环境中休克动态的宝贵方法。使用库仑二进制碰撞算子使用2D粒子中的模拟，我们演示了产生能量电子的机制以及在实验室高机数无碰撞的无碰撞冲击中检测此过程的实验要求。我们通过一项参数研究表明，在激光驱动的扩展等离子体的实验室实验中，通过磁化无碰撞冲击的电子加速度是可行的。
Collisionless shocks are common features in space and astrophysical systems where supersonic plasma flows interact, such as in the solar wind, the heliopause, and supernova remnants. Recent experimental capabilities and diagnostics allow detailed laboratory investigations of high-Mach-number shocks, which therefore can become a valuable way to understand shock dynamics in various astrophysical environments. Using 2D particle-in-cell simulations with a Coulomb binary collision operator, we demonstrate the mechanism for generation of energetic electrons and experimental requirements for detecting this process in the laboratory high-Mach-number collisionless shocks. We show through a parameter study that electron acceleration by magnetized collisionless shocks is feasible in laboratory experiments with laser-driven expanding plasmas.
