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Proceedings Paper

Cross sections for the collisions of metastable Mg*(3P) and Ca*(3P,1D) atoms with HX molecules (X = F, Cl, Br, I)
Author(s): B. Pranszke; P. Kierzkowski; A. Kowalski; M. Menzinger
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Paper Abstract

Collisions of the metastable Mg*(3P) and Ca*(3P, 1D) atoms with HF, HCl, HBr, and HI molecules have been studied in a beam-gas arrangement. The total collision cross section were determined from the attenuation of spectral lines emitted by the metastables and when possible from the dependence of chemiluminescence intensity on target gas pressure. The total cross sections for Mg*, Ca* + HC1, HBr, and HI are rather large and indicate harpooning mechanism. The Mg* reactions with HX give no electronic chemiluminescence while the Ca* +HX reactions produce electronically excited CaX* radicals for all HX targets studied. For the latter reactions electronic chemiluminescence cross sections and photon yields were determined.

Paper Details

Date Published: 1 June 2005
PDF: 6 pages
Proc. SPIE 5849, Fifth Workshop on Atomic and Molecular Physics, (1 June 2005); doi: 10.1117/12.629492
Show Author Affiliations
B. Pranszke, Univ. of Gdansk (Poland)
P. Kierzkowski, Univ. of Gdansk (Poland)
A. Kowalski, Univ. of Gdansk (Poland)
M. Menzinger, Univ. of Toronto (Canada)


Published in SPIE Proceedings Vol. 5849:
Fifth Workshop on Atomic and Molecular Physics
Jerzy Kwela; Ryszard Drozdowski; Tomasz J. Wasowicz, Editor(s)

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