Then the imaging speed of neutron radiography system in SPRR-300 is calculated by the method. The experiment shows the counted value basiclly tallies with the measured value,then the calculating method is believable.

• 根据中子数字照相的原理、光学成像的基本关系式和CCD的特性,提出了一种基于CCD的中子数字照相系统的成像速度理论推算方法,对SPRR-300中子数字照相系统成像速度进行了计算,并与实验结果相比较证明:理论计算与实验基本吻合,计算方法可信。