Proton radiography is a useful diagnostic of high energy density (HED) plasmas under active theoretical and experimental development. In this paper we describe a new simulation tool that interacts realistic laser-driven point-like proton sources with three dimensional electromagnetic fields of arbitrary strength and structure and synthesizes the associated high resolution proton radiograph. The present tool's numerical approach captures all relevant physics effects, including effects related to the formation of caustics. Electromagnetic fields can be imported from PIC or hydrodynamic codes in a streamlined fashion, and a library of electromagnetic field `primitives' is also provided. This latter capability allows users to add a primitive, modify the field strength, rotate a primitive, and so on, while quickly generating a high resolution radiograph at each step. In this way, our tool enables the user to deconstruct features in a radiograph and interpret them in connection to specific underlying electromagnetic field elements. We show an example application of the tool in connection to experimental observations of the Weibel instability in counterstreaming plasmas, using $\sim 10^8$ particles generated from a realistic laser-driven point-like proton source, imaging fields which cover volumes of $\sim10 $ mm$^3$. Insights derived from this application show that the tool can support understanding of HED plasmas.
Ultrafast proton radiography of the magnetic fields generated by a laser-driven coil current
Princeton Plasma Physics Laboratory, Princeton University（普林斯顿等离子体物理实验室，普林斯顿大学）；Department of Astrophysical Sciences, Princeton University（普林斯顿大学天体科学系）；Nuclear Engineering and Radiological Sciences (NERS), University of Michigan（密歇根大学核工程与放射科学系）；Laboratory for Laser Energetics, University of Rochester（罗切斯特大学激光能量学实验室）；General Atomics（通用原子能公司）
Structure of self-generated magnetic fields in laser-solid interaction from proton tomography
Princeton University（普林斯顿大学）；Princeton Plasma Physics Laboratory（普林斯顿等离子体物理实验室）；Lawrence Livermore National Laboratory（劳伦斯利弗莫尔国家实验室）；Massachusetts Institute of Technology（麻省理工学院）；University of Michigan（密歇根大学）
Methods for Extremely Sparse-Angle Proton Tomography
质子射线照相术是一种用于测量等离子体中磁结构的广泛领域的诊断方法。具有多MeV动能的质子被磁场偏转，用于推断它们的路径积分场强。在这里，使用层析成像的方法提出了第一次解除这些路径集成的测量固有的简并，允许空间分辨磁场结构的三维完全重建。提出了两种技术，提高了性能的层析重建算法的情况下，与严重有限的数目的可用的探测光束，是在激光等离子体相互作用实验中的情况下，探针是由短，高功率激光脉冲照射的二次箔目标。这些方法同样适用于阴影法和干涉法等光学探头[M. Kasim et al.Phys.Rev.E95，023306（2017）]，从而为跨物理科学和工程学科的三维成像提供了一种颠覆性的新方法。
Evolution of laser-driven magnetic fields from proton tomography
Princeton University（普林斯顿大学）；Princeton Plasma Physics Laboratory（普林斯顿等离子体物理实验室）；Lawrence Livermore National Laboratory（劳伦斯利弗莫尔国家实验室）；Massachusetts Institute of Technology（麻省理工学院）；University of Michigan（密歇根大学）；University of Rochester（罗切斯特大学）
