Numerical simulation of measurements in radiation technologies

Radiation plays a very important role in the life of humans. Measurements radiation technologies and processes are important. Usually measurements made with dosimeters various types: solid state dosimeters, liquid gaseous dosimeters. Dose based on different principles: temperature increase, collection electric charge, development gases, accumulation free radicals, trapping electron matrix, color change, change solution conductivity, chemical oxidation, reduction. To measure absorbed doses dosimetry system should be used which consists measurement instrumentation, calibration curve, reference standards procedure for system’s use.
 Computer processing power has increased rapidly significantly over past decades. Modern computers proper software mathematical methods allow to simulate complicated processes, example passage ionizing through matter.
 Article shows that GEANT4 can numerical simulations determine doses, dose rates, other values inside irradiated objects under radiation. The relative uncertainty is up 11.8%. Simulation complex performed good accuracy. In order use radiation, metrological support developed.