Project Manager - Collaborated with a semiconductor manufacturing company to develop a large-area X-ray image sensor capable of high-speed imaging. Led product development efforts in coordination with a major Korean company and a U.S.-based technology firm.Project Manager- Oversaw the development of a surgical X-ray imaging system by identifying development needs and requirements from orthopedic surgeons. Completed the first prototype and conducted cadaver tests to validate its effectiveness.Imaging Analysis Engineer- Performed image analysis evaluations on prototypes of an X-ray image sensor, identifying and analyzing issues in the sensor’s fabrication process and providing recommendations for improvements.

Active beam irradiation system design, manufacturing and testing for KIHMA (Korea Heavy Ion Medical Accelerator) project - Computational modeling of carbon beam irradiation line using Geant4 - Prototype active scanning beam line design, manufacturing and testing - Ridge Filter and Range Shifter design and manufacturing for proton and carbon beam case - Active scanning planning software development using MATLAB and Python - Scanning path optimization using Simulated Annealing and Neural Network algorithm - Multi-Wire Proportional Counter (MWPC) design , manufacturing, and testing - Scintillator based beam monitoring system design, manufacturing, and testingTMC (Target, Moderator, Collimator) Design for 13 MeV Cyclotron based BNCT (Boron Neutron Capture Therapy) System - Beryllium used conceptual TMC design and optimization - Monte Carlo analysis for neutron production, moderation using MCNPXSelf-shielded FDG (Fludeoxyglucose) Target Design - Shielding optimization in various target design and shielding materials - Monte Carlo analysis for proton activation and cooling down using PHITS (Particle and Heavy Ion Transport Code System)

Project Managements as Team Leader - Project planning with marketing, sensor development and ASIC design teamCMOS X-ray Image Detector Development for Dental and Medical Applications - Intra-Oral, Panoramic, and CT detectors development (c.f. Xmaru series) - Micro-butting system development to enlarge CMOS chips - One chip Mammography detector developments using 12 inch waferMammography System Developments - Based on cooperation with Metaltronica Co.,Ltd. (Italy)