Transcript 슬라이드 제목 없음
Nuclear Environment Safety Research Center P.O.Box 105, Yuseong,Daejeon, 305-600, Korea Nuclear Environment Safety Research Center Environmental Radiation Monitoring - Environmental Radiation Monitoring and Assessment - Environmental Radioactivity Analysis - Investigation on Environmental Radioactivity Radioecological Research - Radioecological Research - Terrestrial – Nuclides Transport Behavior - Pathway Analysis and Modelling – Ingestion pathway Radiological Dose Assessment - Air Dispersion Modelling - Offsite Dose Calculation Manual - Accident Consequence Analysis and Countermeasure Radiation Biology - Biological Dosimetry - Biological Effect of Radiation Nuclear Facilities in KAERI site □ HANARO ○ Multipurpose Research Reactor ○ 30 MW □ Nuclear Fuel Fabrication Facility CANDU fuel assembly - Natural Uranium oxide ○ PWR fuel assembly - Enriched Uranium oxide ○ □ Post Irradiation Facility □ Waste Treatment Facility □ Research Laboratory □ KRR II, III : under decommission Facilities and Instruments for Environmental Research □ Monitoring Post - 6 system in operation ◦ Radiation Monitor, Continuous air sampler □ Meteorological Observation System ◦ Two Meteorological Tower (46 and 75m height above ground) : wind speed, wind direction, temperature, humidity etc. □ Green House ◦ Radionuclide tracer experiment ◦ Plant cultivation □ Analytical Instruments ◦ Gamma spectrometry system ◦ Alpha spectrometry system ◦ Low background alpha/beta counter ◦ Liquid scintillation counter ◦ TLD reader Environmental radiation/radioactivity monitoring technology Current status Monitoring program for conducting the environmental survey and site assessment for the KAERI nuclear facilities including a research reactor Development of the on-line or wireless data transmission system between the sites and the main station Analytical services for the measurement of radionuclides in foodstuffs, drinking waters, consumer goods and other radioactive wastes Our nuclear analytical laboratory implemented ISO/IEC 17025 standard for most of our testing services and formally accredited by KOLAS On-going R&D activities Development of analytical techniques of indicator radionuclide for environmental monitoring Development of characterization method of decommissioning wastes Development of a automated radionuclide separation system Development of in-situ real time gamma radiation contour mapping technique Major equipment and facilities 13 HPGE detectors including 1 well type, 1 low energy, 1 anticoincidence-shielded system and 1 portable detector 2 alpha spectrometers 2 gas proportional counters 3 liquid scintillation counters Environmental transport modeling and analysis of radioecology ● Current status : - Development of the internal dose assessment codes, ECOREA and ECOREA-II (Visual basic). - Development of dynamic compartment models to evaluate the contamination level of radionuclides in agricultural plants by an accidental release from nuclear facilities. - Experimental measurement of TF values of radionuclides (Cs, Sr, Mn, Co, H-3, C-14) for Korean major foods (rice, cabbage, radish, carrot and soybean) and construction of the comprehensive D/B for TF values. ● On-going R&D activities - Development of the assessment tool for evaluating radiological risk of non-human species . - TF measurement of Tc-99 and I-129 for rice and vegetables. - Participation in the IAEA/EMRAS project. ● Major equipment and facilities - Green house for the radionuclides trace experiment and plant cultivation. Atmospheric dispersion and dose assessment modeling ● Current status : - Development of the real time dose assessment system, FADAS. It was validated with several field tracer experiments conducted on nuclear power plant sites in Korea, adopted as a basic module of the national radiological emergency preparedness system - Development of A long range transport model, LADAS, against an accident in neighboring countries. ● On-going R&D activities - Development of an urban dose assessment model against an accident or a terrorism. RI application technology for hydraulic detection ● Current status : - Field tracer experiments (river, sea, lake) It was performed to analyze the characteristics of pollutants in hydrology system using short-lived radioisotopes such as Gold-198, Iridium-192, Scandium-48, Iodine-131. - Operation of HANARO to produce the isotopes. - Establishment of hydraulic numerical models. ● On-going R&D activities - Development of hydraulic CFD system using radioisotopes. Radiation Biology for the living body protection Current status Studying the biological effects for an effective radiation protection and a therapy Searching the genes which are related to the radiation protection and examining their functions On-going R&D activities Construction of the cell line carrying a radiation or a drug tolerance Conduction of various biochemical and molecular biological experiments using the cell line Development of new functional products to enhance the radiation protection effect Application in the reduction of drug tolerance which will be able to occur during the radiation or and the cancer therapy Ionizing radiation Chemical carcinogen Reactive Oxygen Species • OH, •O2- ONOO– DAMAGED!!! DNA mutation Cell death Protein damage