Formation mechanism of non-uniform structure in the gain distribution and its effect to the plasma x-ray lasers

摘要

To understand the origin of the non-uniform spatial structure of the soft x-ray emission in the laser produced plasmas, a possibility for plasmas to have phase transition processes is investigated. Phase diagram of the plasma is investigated through an analysis of the radiation pressure and its dependence on temperature and density. A computational method based on a particle model to reproduce the structure formation is also presented.