Experimental determination of emission cross sections for electron induced processes in a supersonic argon jet

Fuente: arXiv
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Bibliographic Details
Main Authors: Doronin, Yu. S., Tkachenko, A. A., Vakula, V. L., Kamarchuk, G. V.
Format: Preprint
Published: 2026
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author Doronin, Yu. S.
Tkachenko, A. A.
Vakula, V. L.
Kamarchuk, G. V.
author_facet Doronin, Yu. S.
Tkachenko, A. A.
Vakula, V. L.
Kamarchuk, G. V.
contents The article discusses an original spectroscopic method for the study of supersonic argon jets in atomic and cluster flow regimes. The method is based on absolute measurements of the VUV radiation flux from a supersonic argon jet induced by a 1 keV electron beam. The integral radiation flux and spectral distribution of the radiation flux density of a supersonic argon jet in the range of 50-150 nanometers were measured, which made it possible to determine the density of the non-condensed atomic component, the fraction of condensate, and the density of clusters in a supersonic argon jet at given parameters of its flow into vacuum. The obtained parameters also allowed us to estimate the emission cross sections for the argon resonance lines ArI (λ=104.8 nm, λ=106.7 nm) and the cluster continuum λ=127 nm.
format Preprint
id arxiv_https___arxiv_org_abs_2601_02042
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Experimental determination of emission cross sections for electron induced processes in a supersonic argon jet
Doronin, Yu. S.
Tkachenko, A. A.
Vakula, V. L.
Kamarchuk, G. V.
Atomic and Molecular Clusters
The article discusses an original spectroscopic method for the study of supersonic argon jets in atomic and cluster flow regimes. The method is based on absolute measurements of the VUV radiation flux from a supersonic argon jet induced by a 1 keV electron beam. The integral radiation flux and spectral distribution of the radiation flux density of a supersonic argon jet in the range of 50-150 nanometers were measured, which made it possible to determine the density of the non-condensed atomic component, the fraction of condensate, and the density of clusters in a supersonic argon jet at given parameters of its flow into vacuum. The obtained parameters also allowed us to estimate the emission cross sections for the argon resonance lines ArI (λ=104.8 nm, λ=106.7 nm) and the cluster continuum λ=127 nm.
title Experimental determination of emission cross sections for electron induced processes in a supersonic argon jet
topic Atomic and Molecular Clusters
url https://arxiv.org/abs/2601.02042