# X-ray absorption via electron-ion bremsstrahlung in Maxwellian plasma at the exact consideration of Coulomb potential

## TL;DR

This paper investigates X-ray absorption in high-temperature plasma considering exact Coulomb interactions, revealing conditions for efficient absorption of hard X-ray photons beyond the Born approximation.

## Contribution

It provides a numerical analysis of electron-ion bremsstrahlung absorption accounting for Coulomb potential without relying on the Born approximation.

## Key findings

- Efficient absorption coefficients are achievable in high-temperature plasma.
- Exact Coulomb interaction significantly affects X-ray absorption calculations.
- Results are relevant for high nuclear charge plasmas.

## Abstract

Based on the results of exact consideration of electron-ion Coulomb interaction, by numerical simulations for ultimate absorption coefficient, we study the practically more interesting case of absorption of hard x-ray quanta of frequency when photon energy is of the order of plasma temperature, in high temperature plasma, within the high nuclear charges as well (at which the Born approximation is not applicable), constituting the temperature dependence of one-photon absorption coefficient. It is shown that one can achieve the efficient absorption coefficient in these cases.