This paper introduces the radiographic examination procedure of the primary pump of 900mw nuclear power unit , including the requirement about the radiographic examination equipment such as the radiation sources , films , penetrameter , etc . ; the radiographic process when using the rectilinear accelerator , and the development & examination of radiographic files , defects examination and acceptance criteria , with the expectation that this introduction be useful for reference to the promotion of 1000mw nuclear power primary pump localization in china 摘要介绍了岭澳核电站主泵泵体制造过程中的射线探伤工艺过程，包括对胶片、象质计及底片的要求、直线加速器透照工艺、底片冲洗及黑度要求以及缺陷评定和验收标准，以期对我国今后百万千瓦级主泵泵体的国产化有所裨益。
