随着射线检测技术的不断发展以及对环保要求的不断提高,CR计算机射线照相检测技术在各领域得到了广泛应用。为了解CR技术和射线胶片检测技术的异同,在理论和试验的基础上,针对海洋工程领域的射线检测工作(主要为管线焊缝),在原理、环保、工效、再射率和缺陷检测等方面,展开了CR技术与射线胶片检测技术的对比分析。结果表明,相比射线胶片检测技术,CR技术在环保、工效和再射率方面均有一定的优势。

With the development of radiographic testing and the higher requirement to environmental protection, computed radiography (CR) has been widely used in various industrial fields. In order to analyze the similarities and differences between computed radiography and film radiography, in this paper, the comparison and analysis of computed radiography and film radiography in offshore engineering field (mainly radiography for piping welds) were carried out basically on the theoretically and experimentally in the aspects of principle, environmental protection, working efficiency, retake rate and defects detection. The results showed that compared with film radiography, computed radiography had some advantages in environmental protection, work efficiency and retake rate.