Multi Pixel Photon Counters (MPPC) as an Alternative to APD in PET Applications

被引：35

作者：

Nassalski, A. ^{[1
]}

Moszynski, M. ^{[1
]}

Syntfeld-Kazuch, A. ^{[1
]}

Szczesniak, T. ^{[1
]}

Swiderski, L. ^{[1
]}

Wolski, D. ^{[1
]}

Batsch, T. ^{[1
]}

Baszak, J. ^{[2
]}

机构：

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

[2] Hamamatsu Photon Deutschland GmbH, Polish Off, PL-02525 Warsaw, Poland

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2010年 / 57卷 / 03期

关键词：

Detector linearity; multi pixel photon counters (MPPC); scintillation detection; SILICON PHOTOMULTIPLIERS;

D O I：

10.1109/TNS.2010.2044586

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 multi pixel photon counters (MPPC) of 3 mm x 3 mm size, with 14400 and 3600 pixels, were studied by means of the signal from a laser light pulser and using the 3 mm x 3 mm x 20 mm LSO pixel scintillator. Special attention was paid to measure number of fired pixels, generated by the light of pulser and that of the LSO crystal, using a direct method of a comparison of the light peak position in the pulse height spectrum with that of the single photoelectron. The tests of the LSO crystal showed 1550 +/- 80 fired pixels per MeV in the MPPC with 14400 pixels assuring a good linearity of the response up to about 1 MeV energy of gamma rays absorbed in the LSO crystal. Energy resolution of 14.8% for 662 keV gamma rays from Cs-137 source and a time resolution of about 850 ps for 511 keV annihilation quanta were limited by a rather low number of the fired pixels compared to the number of photoelectrons in photomultipliers.

引用

页码：1008 / 1014

页数：7

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