空间等离子体磁场重联过程地面实验装置及实验研究概述

Ground-based experimental study of magnetic reconnection in space plasma environment

磁场重联是空间等离子体环境中的重要物理过程。对磁场重联进行深入研究,于空间灾害预报以及各种空间探测活动而言都有重要意义。文章首先回顾磁场重联研究史中的几个重要模型;然后介绍国际上进行磁场重联地面实验的主要等离子体装置及有关实验研究;最后介绍国内磁场重联实验研究的现状,重点介绍中国科学技术大学的KLMP装置和最新实验结果,以及在建中的KRX等离子体装置。地面实验作为磁场重联的重要研究手段,还需要拓展装置尺寸及对不同条件下重联特征的研究。

The study of the magnetic reconnection as an important physical process in the space plasma environment is of vital importance to forecasting the space disaster and ensuring the safety of the space exploration activities.This paper firstly reviews some important models of magnetic reconnection,then introduces several important plasma devices for the ground-based experimental study of magnetic reconnection.Next the current situation of magnetic reconnection experimental facilities in China is discussed,focusing on the KLMP device developed in the University of Science and Technology of China with its latest experimental results,and the KRX device,which is still under construction.For ground-based experiment as an important way to study the magnetic reconnection process,efforts should be put in expanding the size of the facilities as well as in exploring the features of reconnection under added different conditions.