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The Deformation Stimulated Luminescence in KCl, KBr and KI Crystals

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dc.contributor.author Shunkeyev, K.
dc.contributor.author Sergeyev, D.
dc.contributor.author Brylew, Kamil
dc.contributor.author Myasnikova, L.
dc.contributor.author Barmina, A.
dc.contributor.author Zhanturina, N.
dc.contributor.author Sagimbaeva, S.
dc.contributor.author Aimaganbetova, Z.
dc.contributor.author Drozdowski, Winicjusz
dc.date.accessioned 2017-05-10T06:38:25Z
dc.date.available 2017-05-10T06:38:25Z
dc.date.issued 2017
dc.identifier.citation Journal of Physics: Conference Series 830, 2017, 012139/1-4
dc.identifier.issn 1742-6596
dc.identifier.other doi:10.1088/1742-6596/830/1/012139
dc.identifier.uri http://repozytorium.umk.pl/handle/item/4326
dc.description.abstract Currently, strengthening of the intensity of luminescence in alkali halide crystals (AHC) at lattice symmetry lowering is discussed as a promising direction for the development of scintillation detectors. In this regard, for the study of anion excitons and radiation defects in the AHC anion sublattice at deformation, the crystals with the same sizes of cations and different sizes of anions were chosen. In the X-ray spectra of KCl at 10 K, the luminescence at 3.88 eV; 3.05 eV and 2.3 eV is clearly visible. The luminescence at 3.05 eV corresponds to the tunneling recharge [F*, H]. Luminescence at 3.88 eV is quenched in the region of thermal destruction of F'-centers and characterizes tunneling recharge of F', VK-centers. In KCl at 90 K, the luminescence of self-trapped excitons (STE) is completely absent. In KBr at deformation not only STE luminescence, but also deformation stimulated luminescence at 3.58 eV were recorded, the last one corresponds to tunneling recharge of F', VK-centers. In KI crystal at 10 K and 90 K at deformation, only STE luminescence is enhanced. There are no deformation luminescence bands in KI compares with KBr and KCl crystals.
dc.language.iso eng
dc.publisher IOP Science
dc.rights Attribution-NoDerivs 3.0 Poland
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri http://creativecommons.org/licenses/by-nd/3.0/pl/
dc.subject halogenki ziem alkalicznych
dc.subject radioluminescencja
dc.subject samospułapkowane ekscytony
dc.title The Deformation Stimulated Luminescence in KCl, KBr and KI Crystals
dc.type info:eu-repo/semantics/conferenceObject


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