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前言管道焊缝的射线透照在电力系统中应用较早,使用广泛,尤其对γ射线的使用技术积累了较多经验。但对X射线的安全剂量、散射线影响等认识上还不够充分,做法上不统一。近几年来,我们收集了有关资料,并对场强剂量、散射线影响等进行了较精确的测定。本文着重叙述了关于X射线的“空间场强分布”、“透过物体后场强剂量的变化”和“散射线的测
Introduction Radiographs of pipe welds are widely used in electric power systems and have been widely used. In particular, they have accumulated more experience in the use of γ-ray technologies. However, the safe dose of X-ray, the impact of scattered radiation and other knowledge is not sufficient, the practice is not uniform. In recent years, we have collected relevant information and conducted a more accurate determination of the dose of field strength, the influence of scattered radiation and the like. This article focuses on the “spatial field strength distribution” of X-rays, the “change of field intensity after passing through an object” and the "measurement of scattered radiation