Выдержка
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 оригинала | Английский |
|---|---|
| Номер статьи | 4545222 |
| Страницы (с-по) | 1263-1269 |
| Число страниц | 7 |
| Журнал | IEEE Transactions on Nuclear Science |
| Том | 55 |
| Номер выпуска | 3 |
| DOI | |
| Состояние | Опубликовано - июн 2008 |
Отпечаток
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Nuclear Energy and Engineering
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Photo- and radiation-stimulated processes in CsI(Tl) crystals. / Trefilova, L.; Grinyov, B.; Alekseev, V.; Mitichkin, A.; Yakovlev, V. Yu; Meleshko, A.
В: IEEE Transactions on Nuclear Science, Том 55, № 3, 4545222, 06.2008, стр. 1263-1269.Результат исследований: Материалы для журнала › Статья
}
TY - JOUR
T1 - Photo- and radiation-stimulated processes in CsI(Tl) crystals
AU - Trefilova, L.
AU - Grinyov, B.
AU - Alekseev, V.
AU - Mitichkin, A.
AU - Yakovlev, V. Yu
AU - Meleshko, A.
PY - 2008/6
Y1 - 2008/6
N2 - 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.
AB - 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.
KW - Cesium compounds
KW - Infrared spectroscopy
KW - Photochromism
KW - Radiation effects
UR - http://www.scopus.com/inward/record.url?scp=45849114434&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=45849114434&partnerID=8YFLogxK
U2 - 10.1109/TNS.2008.924055
DO - 10.1109/TNS.2008.924055
M3 - Article
AN - SCOPUS:45849114434
VL - 55
SP - 1263
EP - 1269
JO - IEEE Transactions on Nuclear Science
JF - IEEE Transactions on Nuclear Science
SN - 0018-9499
IS - 3
M1 - 4545222
ER -