Influence of the ion core on relaxation processes in dense plasmas
Ramazanov T.S. Kodanova S.K. Issanova M.K. Kenzhegulov B.Z.
June 2024John Wiley and Sons Inc
Contributions to Plasma Physics
2024#64Issue 5
The effect of an ionic core on the temperature relaxation in dense hot plasma of beryllium is studied using the pseudpotential model by Gericke et al [Phys. Rev. E 2010, 81, 065401(R)]. Employing the screened version of the ion pseudpotential [by Ramazanov et al, Phys. Plasmas 2021, 28 (9), 092702], we computed the quantum transport cross section for the electron-ion collisions in dense beryllium plasma, where screening is taking into account using the density response function in the long-wavelength regime. The results for the transport cross section are used to compute a generalised Coulomb logarithm and electron-ion collision frequency. Utilizing the latter, we show the effect of the ionic core on the temperature relaxation. To understand the role of the ionic core, we compare the results with the data computed considering ions as point-like charges.
collision frequency , dense plasma , effective potentials , relaxation properties , relaxation rate
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Institute of Applied Sciences and IT, Almaty, Kazakhstan
Institute for Experimental and Theoretical Physics, Al-Farabi Kazakh National University, Almaty, Kazakhstan
Kazakh Physical Society, Almaty, Kazakhstan
Atyrau University named after K.Dosmukhamedov, Atyrau, Kazakhstan
Institute of Applied Sciences and IT
Institute for Experimental and Theoretical Physics
Kazakh Physical Society
Atyrau University named after K.Dosmukhamedov
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