Photo- and radiation-stimulated processes in CsI(Tl) crystals

L. Trefilova, B. Grinyov, V. Alekseev, A. Mitichkin, V. Yu Yakovlev, A. Meleshko

Результат исследований: Материалы для журналаСтатья

8 Цитирования (Scopus)

Аннотация

The process of radiation-chemical coloration of CsI(Tl) crystals with different carbonate ion contamination has been studied. The presence of carbonate in the CsI(Tl) crystals deteriorates their photo- and radiation stability. Possible reasons for the charge carrier derealization in CsI(Tl) crystals under exposure to daylight and a role of oxygen-containing impurities in the formation of stable radiation defects have been established. A model of the hole activator color center is suggested. According to the model, the Tl2+ vc - center is a Tl2+ hole activator center perturbed by a cation vacancy. The electron color centers Tl0va + are stabilized not only by the hole color centers of Tl2+ vc - and I 3 -, but also by the molecular anions of HCO 3 - and CO3 - formed as a result of the photo- and radio-chemical transformation of CO3 2- and OH- ions.

Язык оригиналаАнглийский
Номер статьи4545222
Страницы (с-по)1263-1269
Число страниц7
ЖурналIEEE Transactions on Nuclear Science
Том55
Номер выпуска3
DOI
СостояниеОпубликовано - июн 2008

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Nuclear Energy and Engineering

Fingerprint Подробные сведения о темах исследования «Photo- and radiation-stimulated processes in CsI(Tl) crystals». Вместе они формируют уникальный семантический отпечаток (fingerprint).

  • Цитировать