The development of dose evaluation program for personnel radiation dosimetry

The final goal of this three-year project is to develop a standard dose evaluation program of personnel dosimetry and to take part in the NVLAP of the NIST in the U.S.A. This will provide KAERI with the transfer of acquired high technology to Korea nuclear industry. The main purpose of the study in the first year was to develop the related S/W techniques and comply with the ANSI N13.11 test categories(I,II,III,and IV). We analysed the characters of ANSI N13.11 and made the counter-measure for this. Half Value Layer and Spectroscopy Technique were used for the measurements of effective X-ray energies. The design requirement of TLD badge system and the dose algorithm were analysed. And the calculation of dose equivalents at interest depths of ICRU Sphere and Water Cube Phantom was performed by using MCNP code. Theoretical computation for the scattering correction factors of the detectors in the KAERI neutron calibration room was done using MCNP code and compared with other results. A Precision Long Counter as a second standard device and a Shadow Cone were specially designed and constructed. (Author)