Relativistic calculation of spectral line broadening by electron collisions in plasmas: Case of hydrogenic ions

In the present work, we compute the amplitude of the real part of the impact collision operator for the electron broadening of hydrogenic ion lines in plasmas, taking into account relativistic effects in the dynamics of the perturbing electron. Specifically, two relativistic effects are included: th...

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Bibliographic Details
Published in:Advances in space research 2022-05, Vol.69 (9), p.3553-3557
Main Authors: Zenkhri, D.E., Meftah, M.T., Khelfaoui, F.
Format: Article
Language:English
Subjects:
Collision operator
Cross section
High temperature
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Summary:In the present work, we compute the amplitude of the real part of the impact collision operator for the electron broadening of hydrogenic ion lines in plasmas, taking into account relativistic effects in the dynamics of the perturbing electron. Specifically, two relativistic effects are included: the modification of the cross section Mott instead of the Rutherford cross section and the modification of the velocity distribution (Maxwell–Juttner). The results are compared to the non-relativistic case.
ISSN:0273-1177
1879-1948
DOI:10.1016/j.asr.2022.02.007