Scintillation Properties of Praseodymium Activated Single Crystals

Scintillation Properties of Praseodymium Activated Single Crystals

Scintillation properties of LuAG:Pr grown by Furukawa Co. Ltd., Japan, have been studied. The best crystals display light outputs up to 19000 ph/MeV and an energy resolution of 4.6% at 662 keV. The scintillation yield is found to be a function of size and temperature of the sample; it can be enhance...

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Veröffentlicht in:IEEE transactions on nuclear science 2008-08, Vol.55 (4), p.2420-2424
Hauptverfasser: Drozdowski, W., Dorenbos, P., de Haas, J.T.M., Drozdowska, R., Owens, A., Kamada, K., Tsutsumi, K., Usuki, Y., Yanagida, T., Yoshikawa, A.
Format: Artikel
Sprache:eng
Schlagworte:
Crystalline materials
Crystals
Displays
Energy resolution
Garnets
LuAG
Physics
praseodymium
Pulse measurements
scintillation yield
scintillator
Silicon
Space technology
Temperature
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Zusammenfassung:Scintillation properties of LuAG:Pr grown by Furukawa Co. Ltd., Japan, have been studied. The best crystals display light outputs up to 19000 ph/MeV and an energy resolution of 4.6% at 662 keV. The scintillation yield is found to be a function of size and temperature of the sample; it can be enhanced by 40% upon heating to 450 K. Radioluminescence spectra show both d - f and f - f transitions of Pr 3+ ions; the contribution of the latter increases with temperature. The scintillation decays are complex, with a fast decay constant of 20 ns. The presence of 176 Lu induces high background activity.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2008.2000845