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arXiv · 2502.12034

Size effect on polarization bremsstrahlung emission from xenon clusters

Yu. S. Doronin·A. A. Tkachenko·V. L. Vakula·G. V. Kamarchuk
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Abstract

We measured the spectral distribution of the absolute differential cross section of both ordinary and polarization ultra-soft X-ray bremsstrahlung for 0.7 keV electrons scattered on substrate-free nanoclusters of xenon. Clusters were produced in a supersonic gas jet expanding adiabatically into a vacuum. An original method based on absolute measurements of the intensity of the atom and cluster emission in the vacuum ultraviolet and ultra-soft X-ray spectral regions was used to determine the cluster density in the scattering area. The bremsstrahlung arising from scattering of electrons on clusters had a polarization component which dominated the differential cross section. For the first time, cluster size effect on the formation of the polarization bremsstrahlung was found for xenon.

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Yu. S. Doronin, A. A. Tkachenko, V. L. Vakula, G. V. Kamarchuk. 2025-02-03. Size effect on polarization bremsstrahlung emission from xenon clusters. https://arxiv.org/abs/2502.12034

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