Development of effective dose measurement system (EDMS) and experimental validation of two-dosimeter method

  • Development of effective dose measurement system (EDMS) using an anthropomorphic physical phantom and high-sensitivity MOSFET dosimeters
  • Monte Carlo dose calculations and statistical analysis to determine the uncertainties in effective dose values measured by EDMS
  • Measurement of effective doses in non-uniform radiation fields at nuclear power plants
  • Experimental validation of the two-dosimeter algorithms in non-uniform radiation fields at nuclear power plants

Development of high-accuracy dosimetry techniques for IMRT commissioning*

  • Development of a LEGO-type multi-purpose dosimetry phantom for IMRT (muscle-, fat-, bone-, and lung-equivalent materials, absolute/relative dose measurement, and different-type of dosimeter holders)
  • Development of GUI-based relative dose measurement software with a novel algorithm based on pixel-based unfolding curve in order to correct non-uniform response of scanners

* The principal investigator of this research is Dr. Y. Han at Samsung Medical Center (SMC) in Seoul, Korea.

Development of GUI-based personnel radiation dose calculation (PRDC) program for effective dose calculation

  • Development of user-friendly computer program (PRDC, Personnel Radiation Dose Calculation) for calculation of organ dose, effective dose, and dosimeter responses
  • Monte Carlo calculation of detailed distribution of radiation doses to organs and tissues in the human body and personal dosimeters with MIRD5 mathematical phantom and MCNP
  • Compilation of dosimetry database using a grid set of point and beam sources which are indexed with source location or exposure direction and photon energy
  • Development of internet version of PRDC program (This program is now available through the homepage of Korea Institute of Nuclear Safety (KINS) in Daejeon, Korea.)

Development of industrial single photon emission computed tomography (SPECT) system*

  • Development of industrial SPECT system to investigate detailed behavior of multiphase flow in real time in fluid processing units
  • Design and optimization of industrial SPECT system to maximize imaging resolution and sensitivity using Monte Carlo simulations with MCNPX and Geant4
  • Development of statistical image reconstruction algorithm (EM) and improvement of system matrix calculation speed based on reciprocity theorem, ray-tracing method, etc.

* The principal investigator of this research project is Dr. S.H. Jung at Korea Atomic Energy Research Institute (KAERI) in Daejeon, Korea: