Time-resolved spectroscopy of CsI(CO3) scintillator

Time-resolved spectroscopy of CsI(CO3) scintillator

Bibliografiset tiedot
Parent link:Journal of Luminescence: Scientific Journal
Vol. 173.— 2016.— [P. 34-37]
Yhteisötekijä: Национальный исследовательский Томский политехнический университет Институт физики высоких технологий Лаборатория № 1
Muut tekijät: Yakovlev V. Yu. Viktor Yurjevich, Trefilova L. N. Larisa Nikolaevna, Lebedinsky A. M. Aleksey Mikhaylovich, Zeyin D. Daulet, Dubtsov I. N. Igor Nikolaevich
Yhteenveto:Title screen
The spectral-kinetics characteristics of short-living absorption and luminescence induced by an electron pulse irradiation (Ee=0.25 MeV, t1/2= 7ns,W=2×1010÷4×1012 electron/cm2) in CsI(CO3) crystal are studied. It is shown that the scintillation pulse of CsI(CO3) crystal is caused by the radiative annihilation of perturbed two-halogen excitons of two types, which are located in nearby impurity-vacancy dipole [CO32-−υa+] anion sites. The processes responsible for post-radiation rise and decay of both CO32--related luminescence bands with maxima at 2.8 and 3.2 eV are monomolecular with the thermal activation energy Erise=0.1 eV and Edecay=0.05 eV. The cathodoluminescence pulse kinetics is discussed in the terms of the thermally assistant release of holes captured by CO32--ions and the formation of CO32--perturbed two-halide excitons.
Режим доступа: по договору с организацией-держателем ресурса
Julkaistu: 2016
Aiheet:
электронный ресурс
труды учёных ТПУ
Linkit:http://dx.doi.org/10.1016/j.jlumin.2015.12.044
Aineistotyyppi: Elektroninen Kirjan osa
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=647392

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