中高Z元素高离化态离子的光电离过程研究在很多领域都有重要应用。在强激光场和稠密等离子体环境中，高离化态离子的光电离过程是主要的原子动力学过程之一，影响稠密等离子体的离化平衡。基于此，本项目拟以相对论量子力学为基础，系统研究在强激光场和等离子体环境下中高Z元素高离化态离子的光电离过程。通过比较在不同激光场和等离子体环境中，光电离过程的规律性特征，研究强激光场和等离子体环境对光电离过程的影响。对于无外场无等离子体环境情况，采用相对论多组态Dirac-Fock理论结合R矩阵理论方法研究；对于强激光场作用下，采用LOPT理论和R矩阵弗洛凯理论（或IMST理论）进行研究；在此基础上，基于自洽离子球模型考虑等离子体环境效应对光电离过程的影响。通过系统地探讨了强激光场和等离子体环境对中高Z元素高离化态光电离过程的影响，深化对相应过程的认识，为实验提供指导，具有很大的理论研究意义。

The study of photoionization processes for high-Z high charged ions has important applications in many research fields. In intense laser field and dense plasma environment, the photoionization processes for high charged ions are one of the major atomic dynamics processes, the influence of the dense plasma ionization balance. Therefore, our project plan systematically to study the influences of intense laser field and plasma environment effect for photon-ionization processes of high charged ions based on relativistic quantum mechanics. With comparisons of the features of photoionization processes under different laser field and plasma environment effect, the influences of these effects are discussed. For the situation without laser field and plasma effect, photoionization processes are studied by combining the multi- configuration Dirac-Fock model with R-matrix theory. For the interaction of intense laser field, theoretical studies are performed by using LOPT and R-matrix Floquet Theory (or IMST). For plasma environment effect, self-consistent ion-sphere model is used to describe it. With the explorations of the influences of intense laser field and plasma environment effect for the processes of photoionization, a deep realization of these effects is made, a guide for experiments is provided, and an important academic significance exists.