【摘要】 在一个简单实用的数学模型基础上 ,利用现代计算机技术对正电子放射层析成象系统 (PET)进行了模拟 ,并详细讨论了闪烁晶体材料的物理、几何特性以及探测器环直径的大小对于 PET系统的空间分辨率的影响 .本文所得的结论对于开发和设计 PET系统来说 ,是非常有用的 .更多还原

【Abstract】 It is simulated the Positron Emission Tomography (PET) system by using modern computer technique based on the linear attenuation model.It is the purpose of this paper to investigate the effects of some physical characteristics and geometrical parameters on the spatial resolution of a circular array of position sensitive detectors.Thers results are very useful for designing and developing a practical PET system.更多还原