RUI: Photoionization of Excited States of Atoms and Ions

利用Hartree Slate波函数，计算了原子和离子激发态在Hv、n、1、核电荷和电离阶段的大范围内的光电离截面和光电角分布不对称参数。振子强度和离散到离散的跃迁也将被研究。这项研究将集中于了解周期系统中截面和角分布变化的系统学。哈特里·福克计算将对其中任何一笔交易进行，可能会得到保证，以提高准确性。将研究等电子序列，以研究向生氢行为的逐渐变化。还将研究等核和等离子序列上的光致电离模式的变化。为了充分了解光子与物质的相互作用，辐射复合截面。因此，每个被研究为光电离的系统也将被研究辐射复合。目前采用的方法有一些限制，因为由于收敛的数值问题，不可能研究非常高的激发态。为了克服这种计算限制，将尝试建立一种基于量子亏损理论的新方法。

Photoionization cross sections and photoelectric angular distribution asymmetry parameters will be calculated for excited states of atoms and ions over a broad range of hv, n, 1, nuclear charge and stage of ionization, employing Hartree Slater wave functions. Oscillator strengths and discrete to discrete transitions will also be studied. The investigation will focus on understanding the systematics of variation of the Cross sections and angular distributions over the periodic system. Hartree Fock calculations will be done for any of these transactions, as may be warranted, for greater accuracy. Isoelectronic sequences will be investigated to study the gradual change in behavior towards hydrogenic. Changes in photoionization pattern over isonuclear and iso-ionic sequences will also be looked into. To fully understand the interaction of photons with matter, radiative recombination cross sections. Consequently every system investigated for photoionization will also be investigated for radiative recombination. The method at present employed is a little restrictive in the sense that a study of the very highly excited states becomes impossible due to a numerical problem of convergence, To overcome this computational limitation, an attempt will be made at formulating a new methodology based on the quantum defect theory.