What are the three basic principles of radiation protection?

The three basic principles of radiation protection are the legality of practice, the optimization of radiation protection and the limitation of personal dose.

Details are as follows:

1, the legitimacy of practice, first judge the necessity of x test;

2. Optimization of radiation protection, reducing the dose as much as possible under the premise of satisfying the diagnosis;

3, personal dose limit, limit the total exposure of individuals.

The specific methods of radiation protection are as follows:

1, reduce irradiation time, try to use photography instead of perspective, improve the sensitivity of recording and phenomenon system, improve imaging quality and reduce repeated inspection;

2. Shielding protection: Use a long wire sleeve and limit the size of the X-ray beam. It is forbidden to use plastic conical silk cover tube to limit X-ray leakage of X-ray tube assembly, and use film clip to protect patients and shield working environment;

3. Reduce the amount of invalid X-rays, adopt high-voltage projection as reasonably as possible, and use a fixed filter thickness not lower than that specified by the X-ray machine, reasonably increase the tube voltage and increase the thickness of the filter layer;

4. Distance protection: X-ray workers must keep a certain distance from the X-ray source during irradiation to reduce radiation damage, which is especially important for radiation protection. X-ray examination should focus on a certain distance from the patient's skin. When accepting X-ray examination, other parts of the body should be as far away from the useful wire harness and its irradiated parts as possible except the inspected parts.

Legal basis:

Article 3 of the Regulations on Safety and Protection of Radioisotopes and Radiation Devices

The competent department of ecological environment in the State Council shall exercise unified supervision and management over the safety and protection of radioactive isotopes and radiation devices throughout the country.

The State Council public security, health and other departments shall, in accordance with the division of responsibilities and the provisions of these regulations, supervise and manage the safety and protection of radioisotopes and radiation devices.

The competent department of ecological environment of the local people's government at or above the county level and other relevant departments shall, in accordance with the division of responsibilities and the provisions of these regulations, supervise and manage the safety and protection of radioisotopes and radiation devices within their respective administrative areas.