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Proceedings Paper

New channel for alpha-particles transformation in a low temperature Helium plasma
Author(s): Yurii A. Tolmachev; Yurii A. Piotrovskii; O. V. Zhigalov
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Paper Abstract

For the first time, the process of charge exchange of Helium mucleus on the metastable Helium atom was observed. The process was detected by the analysis of HeII line afterglow excited in recombination of doubly ionized atoms with slow electrons in plasma formed by electron beam. The kinetic equations set for the most populated states of atom and ion was formulated. Solution of the set provides the satisfactory accuracy of the description of population dependence on time in the afterglow and permitted to determine the absolute value of the charge exchange rate constant. The measured value was compared with theoretical estimates and a good agreement between them was found.

Paper Details

Date Published: 22 April 2005
PDF: 5 pages
Proc. SPIE 5830, 13th International School on Quantum Electronics: Laser Physics and Applications, (22 April 2005); doi: 10.1117/12.618405
Show Author Affiliations
Yurii A. Tolmachev, Saint Petersburg State Univ. (Russia)
Yurii A. Piotrovskii, Saint Petersburg State Univ. (Russia)
O. V. Zhigalov, Saint Petersburg State Univ. (Russia)


Published in SPIE Proceedings Vol. 5830:
13th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Sanka V. Gateva; Lachezar A. Avramov; Alexander A. Serafetinides, Editor(s)

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