强激光驱动线圈靶磁场产生及应用研究进展

原晓霞; 周沧涛; 张华; 吴思忠; 陈鹏; 滕建; 张博; 仲佳勇

doi:10.11884/HPLPB202335.220188

强激光驱动线圈靶磁场产生及应用研究进展

doi: 10.11884/HPLPB202335.220188

原晓霞^1,,
周沧涛^1, ,,
张华^1, ,,
吴思忠¹,
陈鹏¹,
滕建²,
张博²,
仲佳勇³

1.
深圳技术大学深圳市超强激光与先进材料技术重点实验室先进材料诊断技术中心工程物理学院，深圳 518118
2.
中国工程物理研究院激光聚变研究中心等离子体物理重点实验室，四川绵阳 621900
3.
北京师范大学天文系，北京 100875

详细信息

作者简介:
原晓霞，yuanxiaoxia@sztu.edu.cn

通讯作者:
周沧涛，zhoucangtao@sztu.edu.cn

张　华，zhanghua@sztu.edu.cn

中图分类号: O539
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- 文章访问数: 926
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- 被引次数: 0
出版历程
- 收稿日期: 2022-06-06
- 修回日期: 2022-10-08
- 录用日期: 2022-10-28
- 网络出版日期: 2022-12-29
- 刊出日期: 2023-01-14

Research progress on generation and application of the magnetic field of intense laser-driven coil target

1.
Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Center for Advanced Material Diagnostic Technology, and College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
2.
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, CAEP, P. O. Box 919-986-6, Mianyang 621900, China
3.
Department of Astronomy, Beijing Normal University, Beijing 100875, China

摘要

摘要:
介绍了以强激光驱动电容线圈靶的实验方法产生磁场的基本模型及其发展过程。对比了实验室中常用的三种磁场诊断方法，包含：B-dot、法拉第旋转以及质子背光，发现前两种方法在实验中仅可以获得距离靶较远处的有限个磁场值，通过结合模拟工具获得靶处的磁场值与测量点的值跨越几个数量级，容易产生误差；质子背光诊断可以在实验中获得全局磁场信息，能够较好地满足线圈靶磁场诊断的需求。由于线圈靶磁场强且可持续时间长，在时空分布上具有一定可控性，因此我们将其应用到了磁重联的研究中，并成功获得了重联出流等特征。另外线圈靶在带电粒子的约束和磁流体动力学研究等多方面也得到了应用。
- 强激光 /
- 强磁场 /
- 高能量密度物理
Abstract:
It has been experimentally proved that the intense laser-driven capacitor-coil target can generate a strong magnetic field of several hundred Tesla. The basic model of the magnetic field generated by this experimental method and its development process are introduced. Comparisons are made between three magnetic field diagnostic methods commonly used in laboratory, including: B-dot, Faraday rotation and proton backlight, it is found that the first two methods can only obtain a limited number of magnetic field values far away from the target in the experiment. The values of the magnetic field at the target obtained by the simulation tool and the value of the measurement point cover a span of several orders of magnitude, which is prone to errors; the proton backlight diagnosis can obtain the global magnetic field information in the experiment, which can better meet the needs of the magnetic field diagnosis of the coil target. Because the magnetic field of the coil target is strong and sustainable for a long time, and has a certain controllability in space-time distribution, we applied it to the study of magnetic reconnection, and have successfully obtained the reconnection characteristics, such as outflow. In addition, the coil target has also been applied in many aspects, such as the confinement of charged particles and the study of magnetohydrodynamics, which will provide new ideas for the research of related problems in laboratory.
- intense laser /
- strong magnetic field /
- high-energy-density physics

HTML全文

图 1 激光驱动电容线圈靶示意图

Figure 1. Schematic diagram of laser-driven capacitor coil target

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图 2 麦克斯韦分布的电子温度（红线）和双温分布的电子温度（蓝线）下随时间变化的线圈电流^[20]

Figure 2. Coil current as a function of time for Maxwell-distributed electron temperature (red line) and bi-temperature distribution electron temperature (blue line) ^[20]

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图 3 激光驱动电容线圈靶实验磁场诊断排布示意图^[11]

Figure 3. Schematic diagram of the magnetic field diagnosis arrangement of the laser-driven capacitor coil target experiment^[11]

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图 4 B-dot测量磁场原理示意图

Figure 4. Schematic diagram of the principle of B-dot magnetic probe measuring magnetic field

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图 5 无磁场和有磁场情况下探针光的水平和垂直偏振分量的条纹图像^[29]

Figure 5. Fringe images of the horizontal and vertical polarization components of the probe light without magnetic field and with magnetic field^[29]

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图 6 实验和模拟给出的质子背光结果^[11]

Figure 6. Experimental and simulation results of proton backlighting^[11]

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图 7 激光设备上激光驱动线圈靶磁重联实验设置^[19]

Figure 7. Experiment setup of the laser-driven capacitor-coil target on laser facilities^[19]

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图 8 外加磁场下相对论电子束的传输实验设置示意图^[16]

Figure 8. Experimental configuration for relativistic electron beam transport with imposed B-field^[16]

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图 9 研究 HEDP 在外部磁场中的流体动力学的实验示意图^[18]

Figure 9. Schematic diagram of the experiment to study the hydrodynamics of HEDP in an external magnetic field

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