Ionization Potential Depression in Partially Ionized Hydrogen

The problem of determining the ionization potential depression in the medium or the so-called continuum lowering has a long history and dates back to the 1960s of the past century, when two competing approaches were proposed. The first method of Stewart and Pyatt [1] was based on the approximation o...

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Bibliographic Details
Published inIEEE conference record-abstracts - IEEE International Conference on Plasma Science p. 606
Main Authors Kurbanov, F., Mukhametkarimov, Ye.S., Davletov, A.E.
Format Conference Proceeding
LanguageEnglish
Published IEEE 06.12.2020
Subjects
Conferences
Depression
Electric potential
History
Ionization
Plasma temperature
Plasmas
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Summary:The problem of determining the ionization potential depression in the medium or the so-called continuum lowering has a long history and dates back to the 1960s of the past century, when two competing approaches were proposed. The first method of Stewart and Pyatt [1] was based on the approximation of an electron-nucleus electrostatic interaction by the Thomas-Fermi potential at a finite temperature. The other approach was formulated by Ecker and Kröll [2] and stemmed from the generalized Saha equation incorporating the chemical potential of the surrounding plasma. The experimental capabilities of that time refrained from making a univocal choice in favor of one of the two concepts, but the situation has recently changed dramatically. Rather fresh experiments with matter at high-energy densities [3]-[5] have revived the subject by demonstrating that the problem of the ionization potential depression still requires further elaboration
ISSN:2576-7208
DOI:10.1109/ICOPS37625.2020.9717909