用于HIRFL重离子治癌的PET成像实验研究与蒙特卡罗模拟  

Investigation of PET Imaging Experiment and Monte Carlo Simulation for Cancer Therapy Using Heavy-Ion Beams at HIRFL

作　　者：陈志强[1] 叶沿林[1] 李琛[2] 杨永锋[2] 詹文龙[2] 肖国青[2] 徐瑚珊[2] 郭忠言[2] 李文飞[2] 江栋兴[1] 王全进[1] 郑涛[1] 张高龙[1] 李智焕[1] 李湘庆[1] 胡青元[1] 庞丹阳[1] 王佳[1] 

机构地区：[1]北京大学技术物理系和教育部重离子物理重点实验室,北京100871 [2]中国科学院近代物理研究所,兰州730000

出　　处：《高能物理与核物理》2004年第7期792-796,共5页High Energy Physics and Nuclear Physics

基　　金：国家重点基础研究发展规划项目 (G2 0 0 0 0 7740 1;G2 0 0 0 0 7740 3 )资助~~

摘　　要：为了HIRFL重离子治癌的需要 ,使用两个位置灵敏闪烁体探测器组成了一个简单的PET成像系统 .对PET成像进行了实验研究 ,实验测量得到了物体成像以及γ射线能谱 ,对于 5 11keV全能峰处的能量分辨率为 18 6 % ,峰总比为 5 2 4 % .采用GEANT3程序对该系统进行了模拟计算 ,并与实验进行比较 。For cancer therapy using heavy-ion beams at HIRFL, a simple Positron Emission Tomography(PET) imaging system was made using two position sensitive BGO scintillator detectors. The object images and γ ray energy spectra were measured for the PET. The energy resolution for the 511keV full energy peak is 18 6% and its countiong fraction is 52 4%. Monte Carlo calculations were performed for the PET imaging system by using GEANT3 code. The object images and γ ray energy spectra are in good agreement with the experimental data. In order to develop a PET imaging system with high efficiency, good resolution and low cost, the PET imaging system was optimized.

关 键 词：重离子治癌 PET成像系统 成像实验 蒙特卡罗模拟 γ射线能谱 

分 类 号：R73-36[医药卫生—肿瘤]