The modeling of atom – neutral collisions for beam emission spectroscopy applications

O. Asztalos, B. Szondy, K. Tőkési, G. I. Pokol

Research output: Contribution to journalArticle

Abstract

Abstract: The collisional radiative models used in the modeling of beam emission spectroscopy diagnostics neglect atom–atom collisions because of a lack of sufficiently detailed atomic data. Filling this scantiness we performed a classical trajectory Monte Carlo simulations to calculate the cross sections for various channels in collisions between H + H2 and Li + H2 for a wide range of projectile energies. Based on the calculated cross sections, a simplified version of the collisional radiative model has been derived. We show that the model is suitable to obtain the beam attenuation in neutral gases outside of the confined plasma region. A strong density dependence has been found for each beam species.

Original languageEnglish
Article number116
JournalEuropean Physical Journal D
Volume73
Issue number6
DOIs
Publication statusPublished - Jun 1 2019

Fingerprint

neutral atoms
collisions
spectroscopy
cross sections
neutral gases
projectiles
attenuation
trajectories
simulation
energy

Keywords

  • Atomic and Molecular Collisions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

The modeling of atom – neutral collisions for beam emission spectroscopy applications. / Asztalos, O.; Szondy, B.; Tőkési, K.; Pokol, G. I.

In: European Physical Journal D, Vol. 73, No. 6, 116, 01.06.2019.

Research output: Contribution to journalArticle

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