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K-shell photoionizations in classical nonideal plasmas

Title
K-shell photoionizations in classical nonideal plasmas
Author
정영대
Issue Date
2001-06
Publisher
AMER INST PHYSICS
Citation
Physics of Plasmas, v. 8, issue. 6, page. 3111-3114
Abstract
Collective and plasma screening effects on photoionization cross sections from the 1s state of hydrogenic ions in classical nonideal plasmas are investigated. An effective pseudopotential model taking into account the collective and plasma screening effects is applied to describe the interaction potential in nonideal plasmas. The screened atomic wave function and energy eigenvalue for the ground state of the hydrogenic ion in classical nonideal plasmas are obtained by the Ritz variational method. The photoionization cross section is obtained by the acceleration form of the transition matrix element in order to investigate the collective and plasma screening effects on the interaction potential. The retardation and Coulomb correction effects are also considered in nonideal plasmas. The total correlation effect is obtained as a function of the nonideality plasma parameter, Debye length, and incident photon energy. The result shows that the collective effect significantly reduces the photoionization cross section. It is also found that the collective effect on the photoionization cross section is increased with increasing the incident photon energy.
URI
https://aip.scitation.org/doi/10.1063/1.1371238https://repository.hanyang.ac.kr/handle/20.500.11754/158382
ISSN
1070-664X; 1089-7674
DOI
10.1063/1.1371238
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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