摘要
大型高功率脉冲装置广泛应用于高能量密度物理的实验室中,随着诊断技术和流体力学模拟技术水平的提高,基于此类装置,实验室天体物理方向取得一些新的重要进展,文章主要介绍帝国理工大学Z箍缩结构的MAGPIE脉冲功率装置上开展的关于磁重联和喷流的实验进展,在磁重联实验中,发现重联电流片中电子温度和离子温度远高于入流等离子体的温度,必然有其他效应导致电子和离子的异常高温;喷流实验中观察到弓形激波和锥形激波的产生。最后对Z箍缩装置实验室天体物理学的未来发展做一些展望。
High pulsed power facilities have been widely used in laboratory astrophysics,and with the development of diagnostics and fluid mechanics simulation technology, important advances have been made in this field. We describe here the magnetic reconnection and jet flow on the MAGPIE pulse power facility of Imperial College. In the magnetic reconnection experiment, it is found that the temperature of the electrons and ions in the reconnection layer is much higher than what would be expected from the temperature of the incoming plasma, so there must be other effects that lead to this abnormally high temperature; in jet experiments it is observed that bow shocks and cone shocks are generated. This article presents an overview of the above topics, as well as some perspective on future laboratory astrophysics research.
作者
仝博伟
仲佳勇
TONG Bo-Wei;ZHONG Jia-Yong(Department of Astronomy,Beijing Normal University,Beijing 100875,China)
出处
《物理》
CAS
北大核心
2018年第10期642-647,共6页
Physics
基金
国家自然科学基金(批准号:11622323)
科学挑战专题(批准号:JCKY2016212A505)
中央高校基本科研业务费专项资金资助项目
关键词
实验室天体物理
高功率脉冲装置
等离子体
磁重联
喷流
laboratory astrophysics
high pulsed power facility
plasma
magnetic reconnection
jet
