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A high-energy resolution observed from a YAP:Ce scintillator

被引：88
作者：
Kapusta, M
Balcerzyk, M
Moszynski, M [1 ]
Pawelke, J
机构：
[1] Soltan Inst Nucl Studies, Dept Nucl Elect, PL-05400 Otwock, Poland
[2] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland
[3] Forschungszentrum Rossendorf EV, Inst Kern Hadronenphys, D-01314 Dresden, Germany
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 421卷 / 03期
关键词：
D O I：
10.1016/S0168-9002(98)01232-7
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
An energy resolution of 4.38 +/- 0.11% was obtained for 662 keV gamma-rays with a 3 x 3 x 20 mm(3) YAP : Ce crystal with its long face coupled to an XP2020Q photomultiplier. The measured number of photoelectrons of 5290 +/- 80 phe/MeV implies a photoelectron statistical contribution of 4.18 +/- 0.04% and hence a YAP intrinsic energy resolution of 1.3 +/- 0.5%, the lowest value ever observed for scintillators. The relative light output of the YAP crystal measured for energies between 14.4 keV and 1.275 MeV was constant within +/-2%. These observations are consistent with the assumption that there is a direct correlation between the energy resolution of scintillators and nonproportionality of their light output versus energy. (C) 1999 Elsevier Science B.V. All rights reserved.
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页码：610 / 613
页数：4
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