超快高能电子射线照相在磁场精细结构测量中的应用

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED

Laser and Particle Beams Pub Date : 2021-01-19 DOI:10.1155/2021/6683245

J. H. Xiao, Y. C. Du, S. Zhang, Y. Zhao

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引用次数: 1

摘要

瞬变电磁场在高能量密度物质或激光等离子体的演化中起着非常重要的作用。本文提出了一种基于高能电子射线照相技术，利用相对论电子束作为探针来诊断瞬态磁场的新设计。基于该方案，可以对磁场的连续分布进行快照。对于用50 MeV探针电子束测量的1 mm厚四极磁体模型，仿真结果表明，在-510 T∗μm ~ 510 T∗μm范围内，无论磁相互作用是聚焦还是散焦，该诊断在强磁场强度和高磁场梯度下均具有优于4微米的空间分辨率和较高的测量精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ultrafast High-Energy Electron Radiography Application in Magnetic Field Delicate Structure Measurement

Transient electromagnetic field plays very important roles in the evolution of high-energy-density matter or laser plasma. Now, a new design is proposed in this paper to diagnose the transient magnetic field, using relativistic electron bunch as a probe based on high-energy electron radiography. And based on this scheme, the continuous distribution of magnetic strength field can be snapshotted. For 1 mm thick quadrupole magnet model measured by 50 MeV probe electron beams, the simulation result indicates that this diagnosis has spatial resolution better than 4 microns and high measurement accuracy for strong magnetic strength and high magnetic gradient field no matter whether the magnetic interaction is focusing or defocusing for the range from -510 T ∗ μm to 510 T ∗ μm.

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来源期刊

Laser and Particle Beams PHYSICS, APPLIED-

CiteScore

1.90

自引率

11.10%

发文量

审稿时长

1 months

期刊介绍： Laser and Particle Beams is an international journal which deals with basic physics issues of intense laser and particle beams, and the interaction of these beams with matter. Research on pulse power technology associated with beam generation is also of strong interest. Subjects covered include the physics of high energy densities; non-LTE phenomena; hot dense matter and related atomic, plasma and hydrodynamic physics and astrophysics; intense sources of coherent radiation; high current particle accelerators; beam-wave interaction; and pulsed power technology.