Development of a New γ-Ray Detector for PEM Applications

ZHAO Qiang; TIAN Yi; LIU Hua-Feng

Chinese Physics C> 2007, Vol. 31> Issue(5) : 506-508

Development of a New γ-Ray Detector for PEM Applications

State Key Lab of Modern Optical Instrumentation of Zhejiang University, Hangzhou 310027, China

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Abstract：
We are developing a high specificity detector for detecting the increased metabolic rate of breast tumors. Positron emission mammography (PEM) provides a highly efficient, high spatial resolution positron imaging system. PMT plays a very important role in PEM detectors, because most of the systems consist of scintillator arrays coupled with PMT. Our detector is composed of 20×20 arrays of 2mm×2mm×20mm of Bi₄Ge₃O₁₂ (BGO) scintillators and a novel flat panel position-sensitive PMT (FP-PS-PMT) -Hamamatsu R8400-00-M256. Spatial resolutions of 2.0mm FWHM and energy resolutions of 23% FWHM are achieved.

References

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ZHAO Qiang, TIAN Yi and LIU Hua-Feng. Development of a New γ-Ray Detector for PEM Applications[J]. Chinese Physics C, 2007, 31(5): 506-508.

ZHAO Qiang, TIAN Yi and LIU Hua-Feng. Development of a New γ-Ray Detector for PEM Applications[J]. Chinese Physics C, 2007, 31(5): 506-508. shu

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Received: 2006-10-11
Revised: 2006-11-15

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