摘要
本文通过对不等厚钢板焊缝的射线透照试验,指出了利用辐射场的偏斜效应,采用侧射线透照,并适当提高管电压,配合使用较厚的铅箔增感屏,以获得增大底片宽容度并提高底片灵敏度的有效途径。
Through the radiographic test to unequal-thickness steel plate welded joints, this paper points out the effective methods to obtain big tolerance and high sensitivity of film by employing side radiography according to skew effect of radiation field, increasing radio-tube voltage properly and matching relative thicker lead-covered sensor screen.
