Absorption by XeCl* excimer molecules of their own emission of the В–Х transition (λ = 308 nm) in a dense Ar–Xe–CCl4 medium upon pumping by fast electrons and uranium-235 fission fragments
- Authors: Mis’kevich A.I.1, Dyuzhov Y.A.2, Suvorov A.A.2
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Affiliations:
- National Research Nuclear University
- Leipunsky Institute of Physics and Power Engineering
- Issue: Vol 121, No 2 (2016)
- Pages: 165-173
- Section: Spectroscopy of Atoms and Molecules
- URL: https://journal-vniispk.ru/0030-400X/article/view/164935
- DOI: https://doi.org/10.1134/S0030400X16080166
- ID: 164935
Cite item
Abstract
Luminescence of dense Ar–Xe–CCl4 gas mixtures with a low CCl4 content upon pumping by fast electrons and uranium-235 fission fragments is studied by spectroscopic methods. It is found that, in a cell with a resonator tuned to the В–Х transition of the XeCl* molecule (λ = 308 nm), the D-state population of the XeCl* excimer molecule (the D–X transition, λ = 235 nm) depends on the B-state population and increases by many times with increasing B-state population of the XeCl* molecule. The stimulated absorption coefficient k = 1.2 × 10–16 of В–Х transition emission of the XeCl* molecule (λmax = 308 nm), which leads to population of the D-state of this molecule, and the coefficient of amplification μ = 2.5 × 10–4 cm–1 of В–Х transition emission of the ХеCl* molecule (λ = 308 nm) are measured upon pumping by uranium- 235 fission fragments with the specific energy input into the gas medium of ~60 mJ/cm3 and a specific power of energy input of about 240 W/cm3.
About the authors
A. I. Mis’kevich
National Research Nuclear University
Author for correspondence.
Email: miskev@mail.ru
Russian Federation, Moscow
Yu. A. Dyuzhov
Leipunsky Institute of Physics and Power Engineering
Email: miskev@mail.ru
Russian Federation, Kaluga oblast, Obninsk, 242033
A. A. Suvorov
Leipunsky Institute of Physics and Power Engineering
Email: miskev@mail.ru
Russian Federation, Kaluga oblast, Obninsk, 242033
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