Influence of irradiation background of 252Cf source on photo-electrical receiving system in X-ray flash radiography

For the X-ray flash radiography in nucleus irradiation surroundings, research about the influence of the irradiation dose of research demand on photo-electrical receiving system was done to ensure the safe and effective using of the system. The outcome of theoretical analysis showed that the irradiation dose of research demand was far less than the radiation hardness of each component in photo-electrical receiving system and the influence of irradiation surroundings on the background noise of CCD camera was small. The experiment based on the theoretical analysis indicated that, by establishing and adopting suitable shielding measures, the background grey scale of irradiation surroundings to CCD camera for study was less than the inherent background noise of the scientific level CCD and the