**7. Conclusion**

The analysis of various applications of electron beams shows that the dose ranges, electron energy, and beam power vary greatly depending on the purpose of irradiation, which determines the electron penetration depth, absorbed dose distribution, and the desired effect. The study uses the GEANT4 toolkit to simulate the impact of electron beam irradiation on the absorbed dose distribution depending on electron energy, density, chemical composition, and geometry of the irradiated object.

To increase the accuracy of computer simulation in the absence of open access to energy beam spectrum of industrial accelerators our team developed an algorithm to reconstruct the electron beam spectrum which would allow to calculate depth dose distribution in an object of any geometry and chemical composition with an accuracy of up to 95%. Using our extensive collection of GEANT4 data on irradiation of biological objects with electrons having the energy of up to 10 MeV we developed a method to increase the irradiation uniformity up to 0.98 for the objects with a mass thickness of up to 3.5 g/cm<sup>2</sup> when one-side irradiated with 10 MeV electrons.

Since computer simulation found that the edges of the object with the shape close to a parallelepiped are underexposed, our further research will be aimed at increasing irradiation uniformity throughout the object irradiated with electron beams. Another area of interest for research is to create a database of absorbed dose distribution for irradiation of biological objects with photons to develop an algorithm for reconstructing bremsstrahlung irradiation energy spectra, which is commonly used in irradiation facilities.
