A MODULAR SCINTILLATION CAMERA FOR USE IN NUCLEAR-MEDICINE
A MODULAR SCINTILLATION CAMERA FOR USE IN NUCLEAR-MEDICINE
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DOI：
10.1109/tns.1984.4333322
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发表时间：
1984-01-01
影响因子：
1.8
通讯作者：
SIMPSON, RG
中科院分区：
文献类型：
--
作者：
MILSTER, TD;SELBERG, LA;SIMPSON, RG
一个“模块化”的闪烁相机被讨论作为一种替代使用愤怒相机的伽马射线成像在核医学。每个模块都是一个独立的伽马相机，由闪烁晶体、光管和掩模平面、PMT和处理电子器件组成。模块组通过有效地利用晶体区域来有效地对放射性核素分布进行成像。通过使用蒙特-卡罗计算机模拟来确定相机的光学设计，使用最大似然（ML）估计器优化PMT信号的信号处理，并结合数字查找表，来最大化每个模块的性能。每个事件在2 μsec内完全处理，并且晶体区域上的PSF的FWHM预计为3 mm。一维和二维原型都被测试用于空间和能量分辨率。
A "modular" scintillation camera is discussed as an alternative to using Anger cameras for gamma-ray imaging in nuclear medicine. Each module is an independent gamma camera and consists of a scintillation crystal, light pipe and mask plane, PMT's, and processing electronics. Groups of modules efficiently image radionuclide distributions by effectively utilizing crystal area. Performance of each module is maximized by using Monte-Carlo computer simulations to determine the optical design of the camera, optimizing the signal processing of the PMT signals using maximum-likelihood (ML) estimators, and incorporating digital lookup tables. Each event is completely processed in 2 μsec, and FWHM of the PSF over the crystal area is expected to be 3 mm. Both one-dimensional and two-dimensional prototypes are tested for spatial and energy resolution.