摘要
高电荷态离子及其在等离子体演化中涉及的能量交换和粒子交换过程,在核爆、可控核聚变、超新星爆炸和恒星吸积盘等极端环境中扮演着重要的角色。近年来,重离子加速器、冷却储存环和储存环精密谱学技术的新发展,推动了高电荷态离子物理的实验和理论研究,为研究极端条件下高电荷态离子结构和动力学,获得高精度原子物理参数、探索高电荷态离子在等离子体环境下的非早衡演化理论模型提供了前所未有的条件。依托兰州重离子加速器装置,通过研究高电荷态离子精密谱和碰撞反应过程,在原子层面理解高电荷态离子结构和动力学中的量子多体问题,阐明等离子体中的原子物理基元过程;基于获得的高精度原子谱和动力学参数,研究高电荷态离子与不同状态等离子体的相互作用,探索其非平衡演化的微观机制;为聚变能源等国家重大需求提供关键原子物理参数,深化对非平衡等离子体演化的物理认识。
The energy and charge exchange are important processes in the evolution of highly charged ion interacting with plasma, and play crucial roles in various extreme environments such as nuclear explosion,controlled nuclear fusions, supernova explosion, and stellar accretion disk etc. In last decades, with the new developments of heavy ion accelerator, cooler storage rings, and precision spectroscopy with storage rings,both experimental investigation and theoretical studies on highly charged ions are developing very fast. This provides unprecedental conditions for acquiring high precision atomic data and studying evolution model of nonequilibrium plasmas. Based on the Heavy Ion Research Facility in Lanzhou( HIRFL), we will study the precision spectroscopy and collision dynamics of highly charged ions to manifest the fundamental atomic processes in plasma. We will also study the basic interaction between ions and plasma to understand the evolution mechanism of plsama. This invesitigation will not only provide important atomic data for nuclear fusion, but also deepen the understanding of the evolution of nonequilibrium plasma.
引文
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