Optical Radiation from the Sputtered Species under Excitation of Ternary Mixtures of Noble Gases by the 6Li(n,α)3H Nuclear Reaction Products
| Autor: | Inesh Kenzhina, Yu.Yu. Baklanova, K. Samarkhanov, Yu.N. Gordienko, M. U. Khasenov, Ye. Yu. Tulubayev, I. Karambayeva, E. G. Batyrbekov |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Nuclear reaction
Materials science alkali metals General Chemical Engineering Analytical chemistry Ionic bonding chemistry.chemical_element nuclear reaction Physics::Atomic and Molecular Clusters Molecule General Materials Science Physics::Atomic Physics QD1-999 Condensed Matter::Quantum Gases Noble gas General Chemistry Alpha particle Condensed Matter Physics Alkali metal Chemistry chemistry Excited state noble gases Lithium level population sputtering |
| Zdroj: | Eurasian Chemico-Technological Journal , Vol 23, Iss 2 (2021) |
| ISSN: | 2522-4867 1562-3920 |
| Popis: | The present paper examines the luminescence of ternary Ar-Kr-Xe and Ne-Ar-Kr mixtures of noble gases in the spectral range from 300 to 970 nm, excited by the 6Li(n,α)3H nuclear reaction products in the core of a nuclear reactor. A thin layer of lithium applied on the walls of the experimental device, stabilized in the matrix of the capillary-porous structure, serves as a source of gas excitation. During in-pile tests, conducted at the IVG.1M research reactor, thermal neutrons interact via the 6Li(n,α)3H reaction, and the emergent alpha particles with a kinetic energy of 2.05 MeV and tritium ions with a kinetic energy of 2.73 MeV excite gaseous medium. The study was carried out in a wide temperature range. The temperature dependence of the intensity of the emission of the atoms of noble gases and alkali metals, heteronuclear ionic molecules of noble gases were studied. The obtained values of the activation energy of the emission process 1.58 eV for lithium and 0.72 eV for potassium agree well with the known values of evaporation energy. Excitation of alkali metals atoms occurs consequently of the Penning process of alkali metals atoms on noble gas atoms in the 1s-states and further ion-molecular reactions. |
| Databáze: | OpenAIRE |
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