Mechanisms of level population in gas lasers pumped by ionizing radiation

Abstract

The mechanisms of level population in high pressure gas lasers pumped by ionizing radiation at the 3p-3s transitions of neon, the d-p transitions of argon, krypton, xenon, and triplet lines of mercury are analyzed. It is shown that dissociative recombination of molecular ions with electrons is not the basic process responsible for populating the p levels of inert gas atoms. It is assumed that the most likely channel for d-level population is direct excitation of atoms by secondary electrons and excitation transfer from buffer gas atoms, with p levels being populated by transitions from upper levels. Dissociative recombination of mercury molecular ions with electrons is the basic process responsible for populating the 7 3 S 1 level of mercury atoms.

Study of Luminescence in Noble Gases and Binary Kr-Xe Mixture Excited by the Products of 6Li(n,α)T Nuclear Reaction

“…The luminescent radiation gets into input of the collimator and focuses on input of the optical fiber cable. Transmitted luminescent radiation through the cable goes to input of a QE65 Pro-abs optical spectrometer (2) and is recorded as a luminescence spectrum on the hard disk of PC (3).…”

“…The efficiency of converting nuclear energy into light energy depends largely on the choice of the active gaseous media excited by nuclear reaction products [1]. If a suitable composition of the gaseous media is found, then it is possible to ensure selective level filling of impurity gas in these collisions where laser generation can be obtained [2]. Efficient excitation of the gaseous media needs isotopes interacting with neutrons in direct contact with this gaseous media.…”