^(75)Se射线源对小径管透照灵敏度的研究

Application of ^(75)Radiographic Source to Small-diameter Pipes

小径管射线检测通常使用的X射线或192Irγ射线源都有其局限性,利用75Se射线源1、92Irγ射线源和X射线对不同直径和厚度钢管的焊缝进行透照成像比较,分析75Se射线源透照成像质量,证明了75Se射线源在小径管射线透照中具有较高的灵敏度。

The radiographic inspection of small-diameter pipes,done by X-ray or 192 Ir-ray,has its limitations.This paper,through comparing the scanning imagery of welds of pipes with different diameters and thickness by()^(75) Se radiographic source,^(192)Ir radiographic source and x-ray,analyzes the quality of scanning imagery by()^(75) Se radiographic source and proves that()^(75) radiographic source is of higher sensitive to small-diameter pipes.