Radiation stability of M1−xPrxF2+x (M=Ca, Sr, Ba) crystals

Autor:	Y. Boyarintseva, Encarnación G. Víllora, N.V. Shiran, V. Nesterkina, Kiyoshi Shimamura, A.V. Gektin
Rok vydání:	2010
Předmět:	Radiation Chemistry Praseodymium Analytical chemistry chemistry.chemical_element Crystallographic defect Ion Radiation damage Irradiation Absorption (chemistry) Instrumentation Radiation resistance Solid solution Nuclear chemistry
Zdroj:	Radiation Measurements. 45:340-342
ISSN:	1350-4487
Popis:	The radiation stability of the mixed crystals M1 − xRxF2 + x (M = Ca, Sr, Ba) depends on types of the alkaline-earth and rare-earth ions. Different to Eu- and Ce-containing systems, M1 − xPrxF2 + x solid solutions have a low radiation resistance, which may be associated with hole trapping on praseodymium ion according to the reaction Pr3+ → Pr4+ which is typical for praseodymium. The coloration efficiency of M1 − xPrxF2 + x crystals grows in the row Ca → Sr → Ba, which is explained satisfactorily within the model of rare-earth clusters, the structure of which is determined by the ratio of the base alkaline-earth cation to the praseodymium ion radii.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d80e089459e1691b509f9c2f863599e4 https://doi.org/10.1016/j.radmeas.2009.12.013 Zobrazit plný text záznamu Full Text from ScienceDirect