Decay kinetics of Ce3+ions under gamma and KrF excimer laser excitation in CeF3single crystals

Autor:	P. Fabeni, Martin Nikl, P. Lecoq, G.P. Pazzi, J. Jindra, J A Mares, Ioan Dafinei, E. Auffray, Michal Dušek, Z Skoda
Rok vydání:	1995
Předmět:	Scintillation Decay scheme Photoluminescence Excimer laser Chemistry medicine.medical_treatment Analytical chemistry Condensed Matter Physics Ion Particle decay Excited state medicine General Materials Science Atomic physics Excitation
Zdroj:	Journal of Physics: Condensed Matter. 7:6355-6364
ISSN:	1361-648X 0953-8984
DOI:	10.1088/0953-8984/7/31/018
Popis:	Measurements of the decay kinetics of regular Ce3+ emissions in CeF3 single crystals have been performed under photo-excitation and gamma (22Na radioisotope) excitation. While flashlamp-excited photoluminescence decay is distorted mainly by the influence of the 'near-surface' traps, the multiexponential nature of the scintillation decay is explained using pair interaction of close-lying Ce3+ excited ions, which account for the discrete character of their distances. Measurements of the same photoluminescence decay under high-intensity laser excitation show a similar departure from exponentiality as in the case of scintillation decay and support the proposed model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b26f80f44ac18359fb56ee8cf88a54df https://doi.org/10.1088/0953-8984/7/31/018 Zobrazit plný text záznamu