1. Leaders of medical and health organizations attach great importance to radiation protection The hazards of medical rays are certain. Leaders of medical and health institutions should be responsible for the safety and protection of radioisotopes and radiation devices in their units. Seriously implement the relevant national laws and regulations.
Follow the three principles of radiation protection:(1) Justification of radiation practice. Before any practice of exposure to ionizing radiation is undertaken, the benefits should be weighed. It can be considered justified only if the benefits to society and individuals from it outweigh the costs incurred. (2) Optimization of radiation protection. Any practice of ionizing radiation should avoid unnecessary exposures; any necessary exposures should be kept to the lowest level reasonably achievable, taking into account economic, technical and social factors. (3) Limits on personal dose. All radiation practices must result in a human exposure dose below the equivalent dose limit. Develop a radiation safety and protection plan for the organization.
2. Strict implementation of pre-service training of radiation practitioners Radiation practitioners in medical and health institutions in accordance with the requirements of the "Regulations on the Safety and Protection of Radioisotopes and Radiation Devices," the relevant national regulations and standards, ionizing radiation and medical radiation protection knowledge of education and training, and examination. If they pass the examination, they will be issued with a radiation worker's license before they are allowed to work. Those who fail the examination are not allowed to work. Radiation practitioners enjoy regular medical checkups, regular vacations and other benefits in accordance with the law, and wear personal dosimeters, the establishment of personal dosage files and health records.
3. Inform patients of the effects of radiation therapy before radiation diagnosis and radiation therapy bring benefits to the public, but also bring harm, and the harm of radiation therapy can not be underestimated. According to the report of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), medical exposure has become the largest artificial source of ionizing radiation exposure to the public. Medical radiation accounts for more than 95% of man-made radiation. Medical and health institutions that use radioisotopes and radiation devices should, in accordance with the relevant regulations of the competent health department of the State Council and national standards, formulate a quality assurance program appropriate to the diagnostic and therapeutic projects in which the institution is engaged, comply with the norms of quality assurance and monitoring, avoid all unnecessary exposure in accordance with the three principles of radiological protection and notify the patient and the examinee in advance of the potential impact of radiation on health. Warnings about the dangers of medical radiation and knowledge of radiation protection are posted in conspicuous places in the radiation site.
Strengthening the construction of radiological sites
1. Procedures for applying for approval of radiological sites Medical and healthcare institutions using radioisotopes and radiological devices shall submit an application for authorization to the competent department for environmental protection with approval authority in advance. Should also obtain a radioactive source diagnosis and treatment technology and medical radiation agency license. It is prohibited to engage in the use of radioisotopes and radiation devices without a license or not in accordance with the types and scope specified in the license. The license is valid for five years. The expiration of the validity period, the need for continuation, the licensee should be valid 30 days before the expiration of the license, to the original licensing authority to apply for continuation.
2. Radiation protection measures for the infrastructure of radiation sites Radiation sites as far away as possible from non-radiation sites. x-ray machine room area of not less than 24m2, 3.5m high, the distance between the machine and the wall should not be less than 2m. indoor ventilation should be provided, the machine room and the film processing room partition wall prohibited board walls. x-ray diagnostic room of the defense value and the observation window of the lead glass should be 1.5mm lead equivalent. The observation window should not be located in the X-ray direct or through the part. The high-energy radiation machine room must be labyrinthine structure. The building should be decorated with soft materials to prevent neutron and sense radiation generation. Grouting should be filled during the construction of the building, and all protective objects should have a certain width overlap at the joints, and the joint seams of the protective lead plates should be overlapped by at least 2cm. after the installation of the machine, the protective performance of the machine room should be tested to meet the requirements of the protection before it can be used.
Source: Hunan Conningda official website