New channel for alpha-particles transformation in a low temperature Helium plasma

Yurii A. Tolmachev; Yurii A. Piotrovskii; O. V. Zhigalov

doi:10.1117/12.618405

22 April 2005 New channel for alpha-particles transformation in a low temperature Helium plasma

Yurii A. Tolmachev, Yurii A. Piotrovskii, O. V. Zhigalov

Proceedings Volume 5830, 13th International School on Quantum Electronics: Laser Physics and Applications; (2005) https://doi.org/10.1117/12.618405
Event: 13th International School on Quantum Electronics: Laser Physics and Applications, 2004, Bourgas, Bulgaria

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.

Citation Download Citation

Yurii A. Tolmachev, Yurii A. Piotrovskii, and O. V. Zhigalov "New channel for alpha-particles transformation in a low temperature Helium plasma", Proc. SPIE 5830, 13th International School on Quantum Electronics: Laser Physics and Applications, (22 April 2005); https://doi.org/10.1117/12.618405

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