Optical radiation from the sputtered species under excitation of ternary mixtures of noble gases by the6 li(N,α)3 h nuclear reaction products
Samarkhanov K. Khasenov M. Batyrbekov E. Gordienko Y. Baklanova Y. Kenzhina I. Tulubayev Y. Karambayeva I.
2021al-Farabi Kazakh State National University
Eurasian Chemico-Technological Journal
2021#23Issue 295 - 102 pp.
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 6 Li(n,α)3 H 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 the6 Li(n,α)3 H 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.
Alkali metals , Level population , Noble gases , Nuclear reaction , Sputtering
Text of the article Перейти на текст статьи
Institute of Atomic Energy Branch of the National Nuclear Center of the Republic of Kazakhstan, 10 Beybit Atom str., Kurchatov, Kazakhstan
School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave., Nur-Sultan, Kazakhstan
National Nuclear Center of the Republic of Kazakhstan, 2 Beybit Atom str., Kurchatov, Kazakhstan
al-Farabi Kazakh National University, 71 al-Farabi Ave., Almaty, Kazakhstan
Institute of Atomic Energy Branch of the National Nuclear Center of the Republic of Kazakhstan
School of Sciences and Humanities
National Nuclear Center of the Republic of Kazakhstan
al-Farabi Kazakh National University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026