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首页> 外文会议>Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE >Modeling high energy (I-131) pinhole collimator for small animal gamma ray imaging device by Monte Carlo simulation (GATE 6.0)
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Modeling high energy (I-131) pinhole collimator for small animal gamma ray imaging device by Monte Carlo simulation (GATE 6.0)

机译：通过Monte Carlo模拟（GATE 6.0）为小型动物伽马射线成像设备建模高能（I-131）针孔准直仪

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摘要

We investigated optimized collimator designs for I-131 high energy gamma ray imaging on small animal gamma camera. The simulated structures of the pinhole collimator were evaluated by sensitivity, true, scatter and penetration count rates, and spatial resolution. The parameters, which were pinhole diameter, acceptance angle, and aperture thickness, were determined to improve image resolution with geometric conditions. In this study we showed optimized pinhole design for high energy I-131 imaging to meet the tradeoff between sensitivity and resolution
机译：我们研究了用于小动物伽马相机的I-131高能伽马射线成像的优化准直仪设计。通过灵敏度，真实度，散射和穿透计数率以及空间分辨率对针孔准直器的模拟结构进行了评估。确定了针孔直径，接受角和孔径厚度等参数，以提高几何条件下的图像分辨率。在这项研究中，我们展示了针对高能I-131成像的优化针孔设计，以满足灵敏度和分辨率之间的权衡

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