Continuation of Petascale Simulation of HED Plasmas

这个项目将利用蓝水独特的能力来研究等离子体物理学中具有国家重要性的几个问题。具体来说，该项目将使用加州大学洛杉矶分校的细胞内粒子软件来解决三个科学领域的基础研究问题。这项研究将有助于确定基于等离子体的加速是否可以作为新型紧凑型加速器的基础，用于能源前沿，作为下一代相干x射线源，应用于医学，材料科学和国土安全。它还将有助于确定激光等离子体的不稳定性是否可以被控制或利用来成功地演示惯性聚变。最后，它将被用来理解结构、形成和粒子加速度在碰撞少激波中，这可能有助于开发高能离子源，并了解如果相对论碰撞少激波是宇宙中最有能量的粒子的原因。加州大学洛杉矶分校等离子体模拟小组花了几十年的时间对等离子体物理关键领域的现象进行了深入的物理理解。它还有助于在这些领域中形成关键的引人注目的问题，如果得到回答，可能会带来变革。该团队已经建立了一套全面的全动力学等离子体模拟软件工具，基于粒子细胞方法，包括各种物理，在单个计算核心上进行了高度优化，并且可以扩展到像Blue Waters这样的领导级计算机的全尺寸。其中一些软件是开源的。该项目开发的代码用于科学发现，这些发现会影响具有重大社会影响的不同领域，如高能物理、聚变能、天文和空间物理。

This project will use Blue Waters unique capabilities to research several problems in plasma physics that are of national importance. Specifically, this project will use UCLA particle-in-cell software to address fundamental research questions in three science areas. This research will help determine if plasma-based acceleration can be the basis of new compact accelerators for use at the energy frontier, as a next generation coherent x-ray sources with applications in medicine, material science, and in homeland security. It will also help to determine if laser plasma instabilities can be controlled or harnessed to successfully demonstrate inertial fusion. Finally, it will be used to understand the structure, formation, and particle acceleration in collision less shocks that may help to develop energetic ion sources and to understand if relativistic collision less shocks that are responsible for the most energetic particles in the universe.The UCLA Simulation of Plasmas Group has spent several decades developing deep physics understanding of phenomenon in key areas of plasma physics. It has also helped to formulate key compelling questions in each of these areas, that if answered could be transformative. The team has built up a comprehensive suite of fully kinetic plasma simulation software tools based on the particle-in-cell method that include a variety of physics, that are highly optimized on a single compute core, and that scale to the full size of leadership class computers such as Blue Waters. Some of this software is available as open source. Codes developed by the project are used to make scientific discoveries that impact diverse fields with significant societal impact such as high-energy physics, fusion energy, and astro and space physics.