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This work is dedicated to computer modeling of the parameters of a tungstenconverter for studying the processes of radiation damage during the interactionof ionizing radiation with solutions of organic dyes. Simulation was carriedout in order to determine the optimal thickness of the converter underpredetermined experimental conditions. Experimental conditions include:energies and type of primary particles, radiation intensity, target dimensions,relative position of the radiation source and target. Experimental studies ofthe processes of radiation damage occurring in solutions of organic dyes areplanned to be carried out using the linear electron. The tungsten converter isused to generate a flux of bremsstrahlung gamma rays. One modeling problem isdetermination of the converter thickness at which the flux of bremsstrahlunggamma will be maximal in front of the target. At the same time, the flow ofelectrons and positrons in front of the target should be as low as possible.Another important task of the work is to identify the possibility ofdetermining the relative amount of radiation damage in the target material bythe Geant4 modeling method. Computational experiments were carried out forvarious values of the converter thickness - from 0 mm (converter is absent) to8 mm with a step of 1 mm. The developed program operates in a multithreadedmode. The G4EmStandardPhysics_option3 model of the PhysicsList was used in thecalculations. A detailed analysis of the obtained data has been performed. As aresult of the data analysis, the optimal value of the tungsten converterthickness was obtained.

Geant4 modeling of the bremsstrahlung converter optimal thickness for studying the radiation damage processes in organic dyes solutions