BA, School of Electrical Engineering, Seoul National Univ.; Master's in Medical and Biological Engineering, Seoul National Univ.; PhD in Medical and Biological Engineering, Seoul National Univ. Since 2005, Assistant/Associate Professor, College of Medicine, Seoul National Univ.; 2009, General-Secretary, IEEE Nuclear and Plasma Science Society, Seoul Chapter; 2010, Director, Publications, Korean Society of Medical and Biological Engineering; 2010, Director, Publicity, Korean Society of Medical Physics; 2010, Director, Nuclear Sciences, Korean Society of Nuclear Medicine. Chair, MIC, 2013 IEEE Nuclear Science Symposium & Medical Imaging Conference (NSS/MIC).