The Interaction of Radiation With Free and Confined Atoms and Ions

该项目将有助于格鲁吉亚州立大学关于辐射与自由和受限原子和离子相互作用的理论计划。PI将继续开发理论方法，并进行一系列计算，探索电磁辐射和带电粒子与物质的电离碰撞，并研究其能量沉积的细节。PI将开发/增强理论方法，并将其应用于对自由原子和离子撞击的电磁辐射的研究，重点是多体相互作用占主导地位的基本近似和过程的分解，例如，负离子光剥离此外，PI将研究原子和离子与原子的碰撞，特别强调射弹电子和高阶贡献的作用。所有这些调查应与实验小组密切合作进行，以确保所开发的理论方法的定量准确性。此外，PI将继续研究辐射与受限原子和离子的相互作用，例如，被困在富勒烯里非常重要的将是限制电位的实际处理，例如，处理C60的所有60个碳原子。这些结果将提供进一步深入了解这些基本原子过程的性质，这些过程在等离子体物理学和受控热核研究，大气，太阳和天体物理学，辐射和放射性物理学和治疗以及X射线激光力学研究中具有重要意义。此外，了解受限原子的性质将导致深入了解一个基本上未探索的领域的新物理学。该项目将使更多的少数民族进入科学领域。

This project will aid the theoretical program on the interaction of radiation with free and confined atoms and ions at Georgia State University. The PI will continue to develop theoretical methodologies and perform a series of calculations that explore ionizing collisions of electromagnetic radiation and charged particles with matter and investigate the details of their deposition of energy. The PI will develop/enhance theoretical methodologies and apply them to investigations of electromagnetic radiation impinging on free atoms and ions, with emphasis on breakdowns in fundamental approximations and processes for which many-body interactions dominate, e.g., negative ion photodetachment. In addition, the PI will study the collisions of atoms and ions with atoms with particular emphases on the role of projectile electrons and higher order contributions. All of these investigations shall be carried out in close collaboration with experimental groups in an effort to insure the quantitative accuracy of the theoretical methodologies developed. In addition, the PI will continue to study the interaction of radiation with confined atoms and ions, e.g., confined in fullerenes. Of great importance will be the realistic handling of the confining potential, e.g., treating all 60 carbon atoms of C60. The results will provide further insight into the nature of these fundamental atomic processes that are of importance in plasma physics and controlled thermonuclear research, atmospheric, solar, and astrophysics, radiation and radiological physics and therapy, and for studies of x-ray laser mechanics. In addition, understanding the properties of confined atoms will lead to insight into the qualitatively new physics of a largely unexplored area. The project will bring more minorities in the sciences.