Monte-Carlo simulation of pinhole collimator of a small field of view gamma camera for small animal imaging
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Monte-Carlo simulation of pinhole collimator of a small field of view gamma camera for small animal imaging
- 发表刊物：
- Nuclear Science and Techniques
- 摘要：
- Abstract :eeds in scintimammography applications,especially for small animal cardiac imaging,lead to develop a small field of view,high spatial resolution gamma camera with a pinhole collimator.However the ideal pinhole collimator must keep a compromise between spatial resolution and sensitivity.In order to design a pinhole collimator with an optimized sensitivity and spatial resolution,the spatial resolution and the geometric sensitivity response as a function of the source to collimator distance has been obtained by means of Monte-Carlo simulation for a small field of view gamma camera with a pinhole collimator of various-hole diameters.The results show that the camera with pinhole of 1 mm,1.5 mm and 2 mm diameter has respectively spatial resolution of 1.5 mm,2.25 mm and 3 mm and geometric sensitivity of 0.016%,0.022% and 0.036%,while the source to collimator distance is 3 cm.We chose the pinhole collimator with hole diameter size of 1.2 mm for our the gamma camera designed based on the wade-off between sensitivity and resolution.
Key words: Monte-Carlo simulation Pinhole collimator Gamma camera Small field of view High spatial resolution
- 合写作者：
- Zhu J, Ma W, Zhu Y, Ma H, Wu Yi, Hu H, et al
- 卷号：
- Vol.20,No.1
- 页面范围：
- 37-41
- 是否译文：
- 否
- 发表时间：
- 2009-02-02