Timing properties of LuAP:Ce studied with large-area avalanche photodiodes

被引：4

作者：

Balcerzyk, M ^{[1
]}

Moszynski, M

Kapusta, M

Szawlowski, M

机构：

[1] Soltan Inst Nucl Studies, PL-05400 Otwock, Poland

[2] Adv Photon Inc, Camarillo, CA 93012 USA

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2001年 / 48卷 / 06期

关键词：

avalanche photodiodes (APDs); lutetiium compounds; scintillation detector; timing;

D O I：

10.1109/23.983265

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Prompted by recent interest in positron emission tomography scanners equipped with LuAP:Ce (LuAlO3:Ce) scintillators read by avalanche photodiodes, we have measured timing properties of this scintillating material with large-area avalanche photodiodes (LAAPDs) from Advanced Photonix, Inc. (API). We have obtained a time resolution of 1.16 +/- 0.06 us for 511-keV peak from a Na-22 source with energy threshold set at 400 keV and 680 +/- 35 ps for Co-60 source with energy threshold set at I MeV. The dependence of time resolution on LAAPD gain was measured showing improved timing at gains over 200, but at the cost of higher excess noise. Comparing the time resolution of LuAP:Ce and LSO:Ce measured with LAAPD and photomultipliers. we discuss the dependence of timing properties on the light output and decay time of these scintillators.

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收藏

页码：2344 / 2347

页数：4

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