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Emission spectra of noble gases and their mixtures under ion beam excitation

Published online by Cambridge University Press:  17 October 2016

M.U. Khasenov
M.U. Khasenov*
Affiliation:
National Laboratory Astana, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
*
Address correspondence and reprint requests to: M.U. Khasenov, National Laboratory Astana, Nazarbayev University, 53, Kabanbay Batyr Avenue, NLA, Astana 010000, Kazakhstan. E-mail: [email protected]
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Abstract

The luminescence spectra of noble gases and their binary mixtures were measured using heavy ion beam excitation from a DC-60 accelerator. Spectra were measured in the range of 200–975 nm; the gas spectra were dominated by lines of p–s and d–p atomic transitions; in neon and argon, lines from atomic oxygen, N2, N2 +, and OH radical bands were also observed. The ultraviolet region of the spectra was represented by a “third continuum” of noble gases. In krypton, the band of the KrO excimer molecule with a maximum at 557 nm was also observed. The maxima of the heteronuclear ionic molecules bands were located at wavelengths of 329 and 506 nm (Ar–Xe), 491 nm (Kr–Xe), and 642 nm (Ar–Kr). The relative intensities of the 2p–1s transitions of the noble gases atoms were measured and are discussed.

Keywords

Noble gasAcceleratorLuminescenceAtomic transitionsMolecular bands
Type
Research Article
Information
Laser and Particle Beams , Volume 34 , Issue 4 , December 2016 , pp. 655 - 662
Copyright
Copyright © Cambridge University Press 2016 

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