Analysis of the Imaging Speed of the CCD Based Neutron Digital Radiography System

The imaging speed is a main character of the CCD based neutron digital radiography system. In the light of character of CCD, the principle of neutron digital radiography and optics, its calculating method was put forward. The imaging speed of SPRR300 neutron radiography system was calculated by the method. The result was basically tallied with the value measured by experiment, the calculating method was believable.