摘要
符合探测是正电子发射断层扫描仪(PET)的本质,其设计好坏直接影响整个系统的性能。小动物正电子发射断层扫描仪是由中国科学院高能物理所自主研发制造的我国首台动物PET。目前,初步实验结果表明其指标能够应用于核医学的一些基础研究中。本文主要介绍这台动物PET装置的符合系统设计。
Coincidence is one of the most important parts in positron emission tomography, which is crucial to overall performance of the system. A small animal PET has been developed at Institute of High Energy Physics, Chinese Academy of Science, China. In this paper, the coincidence system of the animal PET was introduced. The initial experiment results indicated that the coincidence rate of 40 MHz can be achieved and the system sensitivity can be up to 780 cps/μCi ·μl.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2008年第5期1012-1015,共4页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金(10475096)
中国科学院仪器研制项目(Y2003012)的支持
