Dose Measurement with Monte Carlo Codes in Irradiation of Electrical Cables by Electron Beam

The reason for crosslinking the insulation polymer in wire and cable by radiation i sto improve their performance at elevated temperature, the chemical resistance, toughness, and abrasion resistance to slow crack growth. Radiation process quality depends not only on the dose level but also on homogeneity of the dose distribution in especially circular objects like cables which have different density in core and insulation part, respectively. It is important to optimize crosslinking processes to reduce the operation cost while sustaining adequate quality of the final product. The computer simulation method becomes a very effective tool for optimization process providing necessary information in short time and reducing cost in comparison with conventional approach based on experimental dosimetry. The availability of several Monte Carlo codes for electron and photon transport and the advances in the performances of computing systems,make possible to tackle quantitative dosimetry tasks by numerical simulation. With increased computing speed and decreasing hardware cost, it is expected that Monte Carlo based electron dose calculation algorithms will soon become available for routine electron beam dosimetry. The computer simulation of the dose distributions in electric cables was performed for various process parameters, namely level of electron beam energy, irradiation positions, and density of insulator of cable