Digital Radioscopy (DR) and CT Testing Technology Research for Key Parts in Railway Rolling Stock

it introduces the theory of digital radioscopy(DR) &CT testing technology, according to analyze actuaLity of testing for railway key parts and advantage of digital radioscopy(DR) &CT testing technology, and research the feasibiLity for making the technology use in railway rolLing stock key parts, it concludes that the digital radioscopy(DR) &CT testing technology can fit the testing requirements of railway rolLing stock key parts.