Autor:	A. I. Mitichkin, N. N. Kosinov, L. V. Udovichenko, S. K. Bondarenko, I. V. Khromaya
Rok vydání:	2002
Předmět:	Crystal Scintillation Crystallography Absorption spectroscopy Chemistry Annealing (metallurgy) Analytical chemistry Condensed Matter Physics Luminescence Spectroscopy
Zdroj:	Journal of Applied Spectroscopy. 69:901-906
ISSN:	0021-9037
DOI:	10.1023/a:1022422823022
Popis:	Using absorption spectroscopy and luminescent methods, we have investigated qualitatively dissimilar NaI and NaI(Tl) crystals. It is established that in NaI(Tl) crystals grown under conditions of melt hydrolysis and interaction with the air components, centers of additional luminescence of nonactivation nature are formed that decrease the transparency in the activator-radiation region. Data on the hole nature of these centers are obtained. It is shown that high-temperature annealing can alter the number of centers responsible for the decrease in the transparency of the NaI(Tl) crystals.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::29ee82a1d7c268496716f39ddf5b0ad7 https://doi.org/10.1023/a:1022422823022 Zobrazit plný text záznamu Full text from SpringerLink