Comparative study of avalanche photodiodes with different structures in scintillation detection

被引:44
作者
Moszynski, M [1 ]
Kapusta, M
Balcerzyk, M
Szawlowski, M
Wolski, D
Wegrzecka, I
Wegrzecki, M
机构
[1] Soltan Inst Nucl Studies, PL-05400 Otwock, Poland
[2] Adv Photonix Inc, Camarillo, CA 93012 USA
[3] Inst Electr Mat Technol, PL-02668 Warsaw, Poland
关键词
avalanche photodiodes; energy resolution; scintillation detection;
D O I
10.1109/23.958751
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
The performance of beveled-edge large-area avalanche photodiodes (LAAPDs) produced by Advanced Photonix, Inc. (API), Hamamatsu SPL 2560 APDs, and APDs from the Institute of Electron Technology (ITE) was studied in scintillation detection using CsI(TI), BGO, LSO, and YAP scintillators. Measurements covered do gain characteristics, relative response to X-rays and light, and energy resolution for 5.9-keV X-rays from a Fe-55 source. We also determined the electron-hole (e-h) pair numbers for the studied scintillators and the detector energy resolution for 662-keV gamma -rays from a Cs-137 source. The highest numbers of e-h pairs were measured with the LAAPD equaling 33800 e-h/MeV for CSI(TI) and 10200 e-h/MeV for the YAP crystal. In the case of the Hamamatsu APD, the respective numbers were 30900 e-h/MeV and 4700 e-h/MeV Finally, the APD from ITE measured 16500 e-h/MeV with CSI(TI). The best energy resolution of 4.9% for 662 keV was observed with CsI(TI) coupled to the LAAPD. The second best resolution was with the Hamamatsu APD showing a result of 5.8%.
引用
收藏
页码:1205 / 1210
页数:6
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