Silicon photomultiplier performance tests in magnetic resonance pulsed fields

被引：15

作者：

Hawkes, Rob ^{[1
]}

Lucas, Alun ^{[1
]}

Stevick, Joseph ^{[1
]}

Llosa, Gabriela ^{[2
]}

Marcatili, Sara ^{[2
]}

Piemonte, Claudio ^{[3
]}

Del Guerra, Alberto ^{[2
]}

Carpenter, T. Adrian ^{[1
]}

机构：

[1] Univ Cambridge, Addenbrookes Hosp, Wolfson Brain Imaging Ctr, Cambridge CB2 EQQ, England

[2] Univ Pisa, Dept Phys, Ist Nazl Fis Nucl, I-56127 Pisa, Italy

[3] Fondaz Bruno, I-38050 Trento, Italy

来源：

2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11 | 2007年

基金：

英国工程与自然科学研究理事会;

关键词：

SiPM; silicon; photomultiplier; MRI; PET;

D O I：

10.1109/NSSMIC.2007.4436860

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We are investigating the performance of silicon photomultipliers (SiPM) in a magnetic resonance imaging (MRI) environment with a view to exploiting the potential advantages in a combined positron emission tomography / magnetic resonance imaging (PET/MR) system. SiPMs are attractive for PET because they are compact, provide high gain at low bias voltage, and fast response times. Importantly for combined PET/MR applications, they offer performance comparable to that of the photomultiplier tube (PMT) and are insensitive to magnetic fields. To study the effect of MR static magnetic, pulsed gradient and radio-frequency fields on SiPM performance, we have acquired data whilst switching magnetic fields with the SiPM positioned in the MR system. The wide 'dynamic range' of SiPMs facilitates their use in both low light level and PET applications; we have acquired 'single photoelectron' and Na-22 energy spectra to demonstrate SiPM performance for this application. As expected, no degradation in inherent SiPM performance in an MR environment is observed.

引用

页码：3400 / +

页数：2

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