Luminescence response of CsI:Na to electron pulse irradiation

Luminescence response of CsI:Na to electron pulse irradiation

Bibliographic Details
Parent link:Radiation Measurements
Vol. 51-52.— 2013.— [P. 13-17]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт неразрушающего контроля (ИНК) Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников (ПНИЛ ЭДиП)
Other Authors: Yakovlev V. Yu. Viktor Yurjevich, Trefilova L. N. Larisa Nikolaevna, Karnaukhova A. A. Anna Alekseevna, Ganzha Yu. S. Yury Sergeevich
Summary:Title screen
This paper investigates the influence of activator concentration and temperature on the scintillation process in CsI:Na crystal which was excited by a pulsed electron beam (Eex = 0.25 MeV, t1/2 = 15 ns, W = 0.003…0.16 J/cm2) at temperature within 77-300 K. It has been established that the transition of Na-bound two halide exciton from singlet state causes 3 eV emission of CsI:Na. The capturing of Vk by Na+ ion determines the scintillation pulse shape. Thermal liberation of Vk from VkA centers results in an inertial rise of the emission pulse in lightly activated CsI:Na and in a mono-exponential decay of the emission pulse in heavily activated CsI:Na. The value of thermal dissociation energy of VkA centers is 0.24 ± 0.01 eV, which was obtained from the temperature dependences of the emission decay time constant for CsI:2.8∙10−3%Na and of the rise time constant for CsI:2.0∙10−4%Na.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2013
Subjects:
электронный ресурс
труды учёных ТПУ
сцинтилляционные кристаллы
Online Access:http://dx.doi.org/10.1016/j.radmeas.2013.01.003
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652820

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