A compact gamma camera with scintillation array and parallel-hole collimator  

作　　者：ZHU Jie MA Hongguang MA Wenyan ZENG Hui WANG Zhaomin XU Zizhong 

机构地区：[1]The Second Artillery Engineering Institute, Xi＇an 710025, China [2]Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

出　　处：《Nuclear Science and Techniques》2008年第5期297-301,共5页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China (No.10275063)

摘　　要：A new compact gamma camera for small object imaging has been developed.It consists of a pixelized Nal(T1) scintillator array coupled to a position sensitive photomultiplier tube (Hamamatsu R2486) with a parallel-hole lead collimator.The compact camera has better spatial resolution than Anger camera.The average value of intrinsic spatial resolutions is 2.3 mm (FWHM).The overall spatial resolution (FWHM) is 3,5 and 6 mm at 0,2.5 and 3 mm SCD (source-to-collimator distance),respectively.The phantom studies with the compact camera have demonstrated that parallel-hole collimator gamma camera is a practical technique for nuclear medicine application.A new compact gamma camera for small object imaging has been developed. It consists of a pixelized Nal（T1） scintillator array coupled to a position sensitive photomultiplier tube （Hamamatsu R2486） with a parallel-hole lead collimator. The compact camera has better spatial resolution than Anger camera. The average value of intrinsic spatial resolutions is 2.3 mm （FWHM）. The overall spatial resolution （FWHM） is 3, 5 and 6 mm at 0, 2.5 and 3 mm SCD （source-to-collimator distance）, respectively. The phantom studies with the compact camera have demonstrated that parallel-hole collimator gamma camera is a practical technique for nuclear medicine application.

关 键 词：核医学 肿瘤诊断 γ照相机 并行孔准直仪 

分 类 号：TL812[核科学技术—核技术及应用] R730.44[医药卫生—肿瘤]