T/CIRA 1-2019 γ Radiation Irradiation Device Decommissioning Specifications

Scope

Scope: This standard specifies the requirements for the decommissioning of γ irradiation devices, including decommissioning objectives, preparation for decommissioning, implementation of decommissioning, final state of decommissioning, quality assurance and document management, and emergency response. This standard applies to the decommissioning of γ irradiation devices. The content related to the storage well water and water treatment systems only applies to the decommissioning of wet storage γ irradiation devices. Main technical content: In addition to the "Preface" and "Appendices", this standard is divided into 10 chapters, namely "Scope", "Normative Reference Documents", "Terms and Definitions", "General Principles", "Decommissioning Objectives", "Preparation for Decommissioning", "Implementation of Decommissioning", "Final State of Decommissioning", "Quality Assurance and Document Management", and "Emergency Response". Among them, the general principles clarify the overall principles of decommissioning γ irradiation devices, as well as radiation protection principles, waste minimization principles, and site opening principles. The decommissioning objectives mainly refer to the content of the nuclear safety guideline HAD 401/07 "Decommissioning of γ Irradiation Devices", GB 18871 "Basic Standards for Ionizing Radiation Protection and Radiation Source Safety", GB 10252 "Radiation Protection and Safety Specifications for γ Irradiation Devices", and GBZ 167 "Basic Requirements for the Decontamination of Radioactive Materials and the Opening of Sites". It also specifies the two types of γ irradiation devices, namely 60Co and 137Cs. It stipulates the "site decommissioning objectives", "clean-up decontamination levels", and "personal dose constraints". Preparation for decommissioning, based on the content of the nuclear safety guideline HAD 401/07 "Decommissioning of γ Irradiation Devices" and combined with decommissioning practices, sets out the preparatory work

Development Information

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