Comparison of Lu0.7Y0.3AP:Ce and Bi 4Ge3O12 scintillators in gamma ray spectrometry
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Publication Details
Author list: Phunpueok A., Chewpraditkul W., Limsuwan P., Yu B., Wanarak C.
Publisher: Trans Tech Publications
Publication year: 2011
Volume number: 284-286
Start page: 2008
End page: 2013
Number of pages: 6
ISBN: 9783037851913
ISSN: 1022-6680
eISSN: 1662-8985
Languages: English-Great Britain (EN-GB)
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Abstract
The scintillation response of Lu0.7Y0.3AP:Ce and Bi4Ge3O12 scintillation crystals have been compared using photomultiplier tube readout for photon energies ranging from 22.1 to 1274.5 keV. Lu0.7Y0.3AP:Ce showed a light yield non-proportionality of about 20% upon lowering energy from 1,274.5 to 22.1 keV, which is better than that of about 39% obtained for Bi4Ge 3O12. Lu0.7Y0.3AP:Ce showed the light yield of 13,400 ph/MeV and energy resolution of about 8 % for 662 keV gamma rays from a 137Cs source. The photofraction of Bi 4Ge3O12 is better than that of Lu 0.7Y0.3AP:Ce. The intrinsic resolution of the crystals versus energy of gamma rays has been determined after correcting the measured energy resolution for photomultiplier tube statistics. ฉ (2011) Trans Tech Publications, Switzerland.
Keywords
Lu0.7Y0.3AP:Ce
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