QUANTITATIVE EFFECTS OF WORKER/DOSIMETER GEOMETRY ON DOSE MEASUREMENT

WORKER/DOSIMETER (W/D) GEOMETRY AND RELATIONSHIP TO A SOURCEOF RADIATION CAN PROVIDE FALSE RECORDING OF THE RADATION DOSE RECEIVED BY AN INDIVIDUAL. HENCE, TECHNOLOGY INTERNATIONAL INCORPORATED (TII) IS PROPOSING A TWO PHASE EFFORT WHICH INVOLVES A COMPUTER SIMULATION EXPERIMENT USING GEOMETRIC MODELING IN CONJUNCTION WITH A DOSE COMPUTATION ALGORITHM, FOLLOWED BY PERFORMANCE OF EXPERIMENTEMPLOYING VARIOUS PERSONAL DOSIMETERS, SOURCES, SHIELDING CONFIGURATION (SCATTERING GEOMETRIES) AND BODY PHANTOMS TO DETERMINE THE QUANTITATIVE EFFECT OF W/D GEOMETRY. THE SIMULATION WILL PROVIDE A REALISTIC EXPERIMENT DESIGN AND ASSURES PROPER CONSIDERATION OF THE UNDERLYING FACTORS. THEEXPERIMENT WILL BE USED TO VALIDATE THE RESULTS OF THE SIMULATION. SUCCESS OF THE SIMULATION AND VALIDATION OF THERESULTS WILL PROVIDE A COMPUTER POWERFUL TOOL THAT CAN BE EMPLOYED BY NRC IN FURTHER CONSIDERATIONS OF THE PROBLEM AND IN CONSIDERATION OF NEW SITUATIONS WHEREIN QUANTITATIVE EFFECTS OF SIMILAR NATURE NEED TO BE CONSIDERED. IN FACT, THE APPROACH WILL LAY THE GROUND TO A NOVEL AND REALISTIC COMPUTERIZED METHOD FOR RECORDING AND REPORTING EXTERNAL AND POSSIBLY INTERNAL DOSE.