Fritz S L, Cook L T
Med Phys. 1987 Mar-Apr;14(2):244-8. doi: 10.1118/1.596077.
A high-resolution x-ray detector array for x-ray imaging is described. It consists of a discrete array of CdWO4 scintillators and a Reticon 1024S photodiode array with a fiber-optic faceplate. The scintillator elements measure 0.099 X 3 X 4 mm and are bonded together with aluminum foil separators to minimize light crossover. Detective quantum efficiency (DQE) of individual detector channels was 0.38. Systematic variations between channels were substantial. With only a simple correction for between channel variations, DQE for the entire array was 0.04. Evaluation of the edge response function of the array showed that resolution is similar to a detector whose line spread function is Gaussian with a standard deviation of 0.172 mm.
描述了一种用于X射线成像的高分辨率X射线探测器阵列。它由CdWO4闪烁体的离散阵列和带有光纤面板的Reticon 1024S光电二极管阵列组成。闪烁体元件尺寸为0.099×3×4毫米，并用铝箔隔板粘结在一起，以尽量减少光交叉。单个探测器通道的探测量子效率（DQE）为0.38。通道之间的系统变化很大。仅对通道间变化进行简单校正后，整个阵列的DQE为0.04。对阵列边缘响应函数的评估表明，其分辨率与线扩展函数为高斯分布、标准差为0.172毫米的探测器相似。
