Bremsstrahlung on noble gases at low energies

A detailed analysis of the bremsstrahlung spectrum at nonrelativistic electron scattering on argon and xenon is carried out. It is shown that the approximate formulas widely used for the description of bremsstrahlung spectra lead to predictions that significantly differ from the exact results. In th...

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Bibliographic Details
Published in:arXiv.org 2022-07
Main Authors: Milstein, A I, Salnikov, S G, Kozlov, M G
Format: Article
Language:English
Subjects:
Argon
Bremsstrahlung
Electrons
Photons
Rare gases
Scattering
Xenon
Online Access:Get full text
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Summary:A detailed analysis of the bremsstrahlung spectrum at nonrelativistic electron scattering on argon and xenon is carried out. It is shown that the approximate formulas widely used for the description of bremsstrahlung spectra lead to predictions that significantly differ from the exact results. In the limit when the photon frequency tends to zero, a rigorous proof of the relationship between the spectrum of the bremsstrahlung with a transport cross section of electron scattering on an atom is given. This proof does not require any assumptions about the dependence of the scattering phases on energy. For electron energies lower than the luminescence threshold, it is shown that the predictions for a number of radiated photons obtained by the exact formula are in good agreement with the available experimental data.
ISSN:2331-8422
DOI:10.48550/arxiv.2206.01388