The Radiation and Decommissioning Laboratory of Central Research Institute (CRI) of Korea Hydro and Nuclear Power Co. (KHNP) performs research to technically support the effective management of radiological hazards to avoid risks to civilians, the workers, and the environment from the radiological risks. The laboratory mainly consists of three technical groups: decommissioning and SF technology group, radiation and chemistry group, and radwaste and environment group. The groups carry out various R&D such as decommissioning, spent fuel management, radiation protection, water chemistry management, and radioactive waste management. The laboratory also technically supports the calibration of radiometric instruments as a Korea Laboratory Accreditation Scheme (KOLAS), approval for decommissioning, guidance for radioactive waste management, state-of-the-art technology evaluations, and technology transfer.

1. Introduction
2. R&D Fields
    2.1 Decommissioning and SF TechnologyFields
    2.2 Radiation and Chemistry TechnologyFields
    2.3 Radwaste and Environment TechnologyFields
3. Major R&D Achievements
    3.1 Segmentation of Reactor Vessel and Internalsfor Decommissioning of Kori Unit 1
    3.2 Development of a Cutting/DismantlingTechnology for CANDU-type RadioactiveStructures to Secure a Foundation for theDecommissioning of PHWR
    3.3 Development of System DecontaminationFundamental Technology for PHWRDecommissioning
    3.4 Development of Korean Dry StorageModule for PWR Spent Nuclear Fuel
    3.5 Development of a Gamma Ray SpectroscopyMethod for Whole Body CountersUsing an AI Technology
    3.6 Development of Plasma Torch MeltingTechnology (PTM) for Treating RadioactiveWaste
Conflict of Interest

• Cheon-Woo Kim(Central Research Institute, Korea Hydro and Nuclear Power Co., Ltd., 70, Yuseong-daero 1312beon-gil, Yuseong-gu, Daejeon 34101, Republic of Korea) Corresponding Author