When using dental X-ray equipment, the nominal value of tube voltage should be not less than

The nominal tube voltage of dental X-ray equipment is not less than 60kV, and the nominal maximum X-ray tube voltage of breast X-ray equipment is not more than 50kV.

Requirements for equivalent thickness of shielding protection line in different types of X-ray equipment rooms;

1, the nominal value is above 125kV, and the lead equivalent mm in the useful beam direction and 1 beam direction are 3: 2 respectively.

2. The lead equivalent mm in the useful beam direction and the lead equivalent mm in the useless beam direction of the photographic room, oral CT room and dental panoramic room (with skull photography) with a nominal value of 125kV or less are 2 respectively; 1。

3. The lead equivalent mm in the useful beam direction and the lead equivalent mm in the useless beam direction in the fluoroscopy room, bone densitometer room, dental dental dental film room, dental panoramic room (without skull photography) and breast room are1respectively; 1。