Journal Article

PUBDB-2015-01934

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Structure–Property Correlations in a Ce-Doped $(Lu,Gd)_2SiO_5 :Ce$ Scintillator

Sidletskiy, O. (Corresponding Author) ; Belsky, A.>Extern* ; Gektin, A. ; Neicheva, S.>Extern* ; Kurtsev, D. ; Kononets, V. ; Dujardin, C.>Extern* ; Lebbou, K. ; Zelenskaya, O. ; Tarasov, V. ; Belikov, K. ; Grinyov, B.

2012
ACS Publ. Washington, DC

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Please use a persistent id in citations: doi:10.1021/cg300608t

Abstract: A full concentration range of Lu2xGd2–2xSiO5 (LGSO:Ce) crystals was grown by the Czochralski method. Dependence of the scintillation properties on composition (x) in the range of solid solutions is established. It was determined that the LGSO:Ce scintillation yield increases in the range 0.3 < x < 0.8 and reaches 29000 phot/MeV at 60% of Lu in the host (x = 0.6), and energy resolution improves up to 6.7% at 662 KeV. The observed light yield increase, surprisingly high Ce3+ segregation coefficients, improvement of energy resolution, and suppression of afterglow can be attributed to modification of both hot and thermalized diffusion of secondary electrons and holes induced by short-range separation in solid solution. The proposed approach can be valid for a wide range of mixed scintillation crystals and provides room for further improvement of their characteristics by isovalent substitution of host atoms.

Note: (c) American Chemical Society

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Contributing Institute(s):

1. DOOR-User (DOOR)

Research Program(s):

1. DORIS Beamline I (POF2-54G13) (POF2-54G13)

Experiment(s):

1. DORIS Beamline I (DORIS III)

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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