The decommissioning of sites using Class I, II and III radioactive sources and sites producing radioisotopes, sites using Class A and B unsealed radioactive materials, and radiation devices that produce radioactive contamination after termination of operation shall be implemented in accordance with the law.
1. Categories and places of radioactive sources:
Class I, Class II, and Class III radioactive sources: these sources all have different levels of radiation intensity and hazards, corresponding to different standards of use and management.
Places for the production of radioisotopes: these involve the production, handling and storage of radioisotopes and require strict control and management.
Grade A and B unsealed radioactive material use sites: refers to sites where unsealed radioactive material is used, and is managed differently according to different grades.
2. Principles of decommissioning implementation:
Legal basis: Based on the Regulations on the Safety Management of Radioisotopes and Radiation Devices and other laws and regulations, the decommissioning requirements and standards for different places are clearly defined.
Security risk assessment: A comprehensive security assessment of radioactive source facilities and equipment is conducted to determine the necessity and priority of decommissioning.
Decommissioning plans and measures: Detailed decommissioning plans and handling measures are formulated to ensure safe and efficient implementation of decommissioning.
3. Decommissioning Procedures:
Establishment Evaluation: Evaluate the facilities or equipment, define the scope and mode of decommissioning, and formulate corresponding programs.
Decommissioning implementation: in accordance with the formulated program, take appropriate technical measures to dismantle, clean up and dispose of the facilities or equipment for treatment.
Supervision and inspection: Strictly comply with national standards and regulations, and supervise the compliance and safety of the decommissioning process.
Follow-up supervision: Supervision and follow-up are required after decommissioning to ensure that the premises and equipment no longer pose a hazard to people and the environment.
4. Safety, security and environmental protection measures:
Safety measures: The decommissioning process needs to be strengthened in terms of safety management to ensure the safety of staff and the environment.
Environmental protection: radiation protection and environmental monitoring in the decommissioning process to ensure that decommissioning will not cause pollution to the surrounding environment.
The rigorous implementation of decommissioning is crucial to preventing and reducing the harm of radioactive substances to humans and the environment. Ensuring that decommissioning is carried out in accordance with the law and that potential hazards are effectively removed is an important step in safeguarding public health and environmental safety.