Optical Radiation during Sputtering of Lithium into a Noble Gas Using a Nanosecond Electron Beam
Khasenov M. Samarkhanov K. Batyrbekov E. Gordienko Y. Kenzhina I.E. Tulubayev Y.
March 2023MDPI
Applied Sciences (Switzerland)
2023#13Issue 6
The optical radiation in a gaseous medium upon the irradiation of a lithium layer with a fast electron beam of a 5 ns duration has been studied. The irradiation chamber was filled with argon, krypton, or xenon at a pressure of 10 kPa up to 60 kPa. The lines of lithium atoms appear in the emission spectrum at a lithium layer temperature of 650–680 K, and the intensity of these lines sharply increases with the increasing temperature of the lithium layer. The optical radiation arises from both the transitions of noble gas atoms and the transition of the lithium atom in a time of about 20–30 ns. The duration of the radiation pulses at half maximum at temperatures above 800 K was 60–100 ns at a wavelength of 610.4 nm and 140–220 ns at 670.8 nm in krypton and argon. The various mechanisms for the population of lithium levels during the radiation pulse are discussed.
electron accelerator , lithium , luminescence , noble gases , sputtering
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Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov, 071100, Kazakhstan
Department of Physics and Technology, Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, 070000, Kazakhstan
National Nuclear Center of the Republic of Kazakhstan, Kurchatov, 071100, Kazakhstan
Advanced Electronics Development Laboratory, Kazakh-British Technical University, 59 Tole bi St, Almaty, 050000, Kazakhstan
Department of General Physics, Satbayev University, Almaty, 050013, Kazakhstan
Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan
Department of Physics and Technology
National Nuclear Center of the Republic of Kazakhstan
Advanced Electronics Development Laboratory
Department of General Physics
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