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정교성,김종일,이진우 (사)한국방사선산업학회 2017 방사선산업학회지 Vol.11 No.1
A cyclotron is a kind of particle accelerator that produces a beam of charged particles for the production of medical, industrial, and research radioisotopes. More than 30 cyclotrons are operated in Korea to produce 18F, an FDG synthesis at hospitals. A 30-MeV cyclotron was installed at ARTI (Advanced Radiation Technology Institute, KAERI) mainly for research regarding isotope production. In this study, we analyze and estimate the items of risk such as the problems in the main components of the cyclotron, the loss of radioactive materials, the leakage of coolant, and the malfunction of utilities, fires and earthquakes. To estimate the occurrence frequency in an accident risk assessment, five levels, i.e., Almost certain, Likely, Possible, Unlikely, and Rare, are applied. The accident consequence level is classified under four grades based on the annual permissible dose for radiation workers and the public in the nuclear safety law. The analysis of the accident effect is focused on the radioactive contamination caused by radioisotope leakage and radioactive material leakage of a ventilation filter due to a fire. To analyze the risks, Occupation Safety and Health Acts is applied. In addition, action plans against an accident were prepared after a deep discussion among relevant researchers. In this acts, we will search for hazard and introduce the risk assessment for the research 30-MeV cyclotron facilities of ARTI.
정교성,이진우,이상봉,이현진,최대성,김종일 (사)한국방사선산업학회 2020 방사선산업학회지 Vol.14 No.3
A Linear Accelerators is a kind of particle accelerator that produces a beam of chargedparticles for the production of medical, industrial, and research purposes. 10 MeV and 2.5 MeVlinear accelerators were installed at Electron Beam Process Demonstration Reaserch Facility,ARTI (Advanced Radiation Technology Institute, KAERI). The facility supports technical transferof electron beam process technology and its commercialization through development of electronbeam process of large size products and a pilot-scale demonstration research by utilizing electronbeam generated from electron accelerators (10/2.5 MeV) and automatic irradiation system. 10MeV electron accelerator supports electron beam irradiation for large size product (up to 10 m),continuous production process design, and optimization. 2.5 MeV electron accelerator supportselectron beam irradiation for various type samples (solid, liquid, film, fiber, and tube typeproducts), continuous production process design, and optimization. In order to operate such anelectronic accelerator facility, it is necessary to obtain a license to use a radiation generating devicein accordance with the Nuclear Safety Act, the enforcement decree and enforcement regulationsof the same Act. The operator of an electronic accelerator facility must submit a radiation safetyreport as an attached document when applying for permission to use and pass the review by theregulatory agency, and the radiation safety report must include an assessment of the exposuredose when operating the accelerator. In this study using the Monte Carlo computer code, MCNP,calculates the radiation dose rate outside the irradiation room due to the radiation generated bythe accelerators of two electron accelerators installed in the facility, and considers the operator'sworking time. Then, the evaluated exposure dose was compared and analyzed with the referencevalue according to domestic laws and regulations. It could be also helpful for organizationslooking to build similar facilities.
정교성,이상봉,이현진,최대성,이진우,김종일 (사)한국방사선산업학회 2021 방사선산업학회지 Vol.15 No.2
The Advanced Radiation Technologu Institute (ARTI) has developed an integratedradioactive waste management system that manages a series of processes from production andpurchase to use and treatment of radioactive waste. From the production and purchase of unopenedradioisotopes, management numbers are assigned and barcodes and QR codes are attached. Fromuse to disposal, and the resulting radioactive waste, all traces are managed. In recent years, RFIDis used to automatically wirelessly identify items such as shipments in various industrial fields, especiallylogistics and distribution. Barcodes and QR codes are recognized only from a short distance,so the history of radioactive waste managed by the Advanced Radiation Research Center can bechecked, but it was difficult to confirm the movement and unauthorized removal. Accordingly, anunauthorized export surveillance system of radioactive waste was developed to actively respond tothe movement and unauthorized removal of radioactive waste by introducing RFID.