【摘要】 本文介绍了运用调制传递函数测试了相机空间系统分辨率的原理、方法、结果与分析,为广大用户在设备验收检测、维修调试和质量控制等方面提供了一种较好的评价方法。更多还原

【Abstract】 The principle, method and result of determining the spatial system resolution of gamma camera by using the modulation transfer function(MTF) method was introduced meticulously in this paper, Comparing with the traditional FWHM method, MTF method is more accurate and more objective. Our result of FWHM index was as good as the criterion of NEMA (National Electrical Manufacturers Association) in USA, because we use the midget point source(<φ=0.5mm).So this method can supply a new kind of more effective evaluation method for users.更多还原