Destruction of Doped Lithium Tetraborate under Exposure to Ionizing and Laser Radiation.

Autor:	Vainer, Yu. G., Vereshchagina, N. Yu., Danilkin, M. I., Korshunov, V. M., Repeev, Yu. A., Selyukov, A. S.
Předmět:	LASER beams IONIZING radiation RADIATION exposure LITHIUM EXPOSURE dose OPTICAL properties ELECTRON beams
Zdroj:	Optics & Spectroscopy; Jul2019, Vol. 127 Issue 1, p113-120, 8p
Abstrakt:	The results of the study of the degradation of thermoluminescent materials Li2B4O7:Be + Mn and Li2B4O7:Zn + Mn under the effect of radiation (pulsed electron beam) and laser radiation are presented. As a result of exposure to high doses of radiation, the structure of the samples under study partially acquires an amorphous character, while the effect of radiation exposure is manifested in the optical properties in the appearance of green luminescence due to manganese centers in the tetrahedral environment. With subsequent irradiation with a laser at a wavelength of 350 nm, luminescence centers decay due to photochemical oxidation of manganese by the reaction of Mn2+ → Mn3+. It is shown that Li2B4O7:Be + Mn has a lower radiation resistance than Li2B4O7:Zn + Mn. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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