Light yield non-proportionality and energy resolution of Lu 1.8Y0.2SiO5:Ce and LaCl3:Ce scintillation crystals

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Publication Details

Author list: Wanarak C., Chewpraditkul W., Phunpueok A.

Publisher: Trans Tech Publications

Publication year: 2011

Volume number: 284-286

Start page: 2002

End page: 2007

Number of pages: 6

ISBN: 9783037851913

ISSN: 1022-6680

eISSN: 1662-8985

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79960769326&doi=10.4028%2fwww.scientific.net%2fAMR.284-286.2002&partnerID=40&md5=e26f27ecca4c73c7b5511e01b22f5fc5

Languages: English-Great Britain (EN-GB)

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Abstract

The scintillation response of Lu1.8Y0.2SiO 5:Ce (LYSO:Ce) and LaCl3:Ce scintillators were compared under γ-ray excitation using photomultiplier tube (PMT) readout. For 662 keV γ-rays (137Cs source), energy resolution of 4.5±0.2% obtained for LaCl3:Ce coupled to XP5200B PMT is much better than that of 8.2±0.4% for LYSO:Ce. The non-proportionality of the light yield and energy resolution versus γ-ray energy were measured and the intrinsic resolution of the crystals was calculated. Special attention was devoted to the correlation between intrinsic resolution and non-proportional response of scintillators. © (2011) Trans Tech Publications, Switzerland.

Keywords

Intrinsic resolution, LaCl3:Ce