摘要
利用75Se1、92Ir和X射线对阶梯试块及不同厚度钢板的对比试验,证明了75Se射线源在小径管的透照中具有较好的厚度宽容度,并提出了透照厚度下限降到4 mm左右的依据,以利于薄壁小径管设备的射线检测。
By comparing the scan pictures made by ^75Se radiographic source, ^192Ir radiographic source and X - ray on steel piates with different thickness, it is proven that the ^75Se radiographic sorce is of better tolerance, it is provided that the scanning thickness can be reduced to 4 mm in order to facilitate the radiographic inspection of small - diameter pipes.
出处
《压力容器》
北大核心
2006年第3期54-56,43,共4页
Pressure Vessel Technology
关键词
^75Se射线源
薄壁
透照厚度
厚度宽容度
^75Se radiographic source
thin wall
scanning thickness
thickness tolerance
