A5079440334- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Graphite, nuclear technology, radiation studies
- Advanced X-ray and CT Imaging
- Nuclear and radioactivity studies
- Nuclear Physics and Applications
- Thin-Film Transistor Technologies
- Radioactive element chemistry and processing
- Thermodynamic and Structural Properties of Metals and Alloys
- Psychosocial Factors Impacting Youth
- Semiconductor materials and devices
- thermodynamics and calorimetric analyses
- Machine Learning in Materials Science
- Covalent Organic Framework Applications
- Integrated Circuits and Semiconductor Failure Analysis
- Suicide and Self-Harm Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Radiation Shielding Materials Analysis
Chungbuk National University Hospital
2023
Korea Atomic Energy Research Institute
2016-2022
Seoul National University
2016-2020
Environmental damage from serious nuclear accidents should be urgently restored, which needs the removal of radioactive species. Radioactive iodine isotopes are particularly problematic for human health because they released in large amounts and retain radioactivity a substantial time. Herein, we prepare platinum-coated iron nanoparticles (Fe@Pt) as highly selective reusable adsorbent species, i.e., iodide (I-), (I2), methyl (CH3I). Fe@Pt selectively separates species seawater groundwater...
A basic characterization of uranium samples was performed using gamma- and X-ray spectroscopy. The studied were eight types certified reference materials with 235U enrichments in the range 1–97%, measurements over 24 h a high-resolution high-purity planar germanium detector. general peak analysis spectrum XKα region spectra carried out by HyperGam HyperGam-U, respectively. standard sources used to calibrate spectroscopy system. To obtain absolute detection efficiency, an effective solid...
The radionuclide inventory in radioactive waste from nuclear power plants should be determined to secure the safety of final repositories. As an alternative time-consuming, labor-intensive, and destructive radiochemical analysis, indirect scaling factor (SF) method has been used determine concentrations difficult-to-measure radionuclides. Despite its long history, original SF methodology remains almost unchanged now needs improved for advanced implementation. Intense public attention...
HyperGam-U was recently developed to determine uranium enrichment based on γ- and X-ray spectroscopy analysis. The XKα region of the spectrum contains 13 peaks for 235U 238U is used mainly To describe peaks, a Lorentzian broadened shape function used, methods were reduce number fitting parameters decomposing strongly overlapping using channel-energy, energy-width, energy-efficiency calibration functions. For validation, eight certified reference material samples covering enrichments from 1%...
Most thickness measurement techniques using X-ray radiation are unsuitable in field processes involving fast-moving organic films. Herein, we propose a Compton scattering method, which probes the light elements materials, and new simple, non-destructive, non-contact calibration-free real-time film technique by setting up bench-top system simulating process dealing with thin flexible The use of fluorescence reflectance signals from films close contact roller produced accurate measurements. In...
As an early stage in the development of a water calorimeter, this study established computer simulation methodology for analyzing thermal behavior calorimeter based on radiation transport and energy deposition. result, developed method wherein deposition distribution, which is obtained by applying Monte Carlo methods calorimeters, directly used as heat source analysis model. Based proposed method, transfer vessel effect thermistor self-heating were analyzed. Through velocities with without...