YY/T 0479-2004 in English

本标准适用于供医学放射诊断用的装有旋转阳极X射线管的X射线源组件和X射线管组件，该医学放射诊断技术使x射线图形在影像接收区所有点上同时被接收。除非另有规定，本标准还适用于装有新型旋转阳极X射线管的X射线管组件。本标准不适用于特殊用途的X射线源组件和X射线管组件，如空气比释动能率突变的或者有意使其特殊的分布的情况。

Scope

This standard applies to X-ray source assemblies and X-ray tube assemblies equipped with rotating anode X-ray tubes for medical radiological diagnosis. This medical radiological diagnosis technology enables X-ray patterns to be received simultaneously at all points in the image receiving area. Unless otherwise specified, this standard also applies to X-ray tube assemblies incorporating new rotating anode X-ray tubes. This standard does not apply to X-ray source assemblies and X-ray tube assemblies for special purposes, such as those where the air kerma rate changes suddenly or where a special distribution is intended.