【摘要】 在γ射线工业CT的原始数据中包含了各种误差,须作校正。文献[1]给出了散射修正。本文研究了能谱硬化修正、采传系统的一致性校正、死时间校正以及扇形扫描中的镜象对称,并且给出了相应的数学模式。更多还原

【Abstract】 The errors in original data of (?)-ray industrial computer tomography should be corrected. Scatter-ing correction has been given in reference [1]. The correction for energy spectrum hardening,uniformity of data acquisition system and dead time,and the mirror symmetry of sector scan are studied in this paper. The corre-sponding mathematical model is also given.更多还原