Large Area Avalanche Photodiodes in X-rays and scintillation detection

被引：45

作者：

Moszynski, M ^{[1
]}

Kapusta, M

Balcerzyk, M

Szawlowski, M

Wolski, D

机构：

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

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

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 442卷 / 1-3期

关键词：

X-ray detectors; scintillating detectors; Avalanche Photodiodes;

D O I：

10.1016/S0168-9002(99)01226-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The performance of 10 and 16 mm diameter beveled edge Large Area Avalanche Photodiodes (LAAPD) was studied in X-rays and scintillation detection. A good linearity of the LAAPD response to X-rays was observed up to energies of about 20 keV. The ratio of the APD gain for X-rays and light pulses remained constant (within 1%) for both the 5.9 and 16.6 keV photopeaks in the APD gain range up to 100. This allowed for use of soft X-rays as an accurate reference in APD scintillation detection study. The study covered measurements of the number of generated e-h pairs and energy resolution for several scintillators. Particularly, the energy resolution of 4.8 +/- 0.2% was measured with a small CsI(TI) crystal for 662 keV gamma-rays from a Cs-137 source and 4.3 +/- 0.2% with YAP:Ce. The measured energy resolutions were comparable or better than those measured with a photomultiplier. (C) 2000 Elsevier Science B.V. All rights reserved.

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页码：230 / 237

页数：8

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