OPTIMUM FIELD SEPARATION IN ADJACENT FIELDS OF ELECTRON BEAM THERAPY
Abstract
Due to the scattering properties of electrons, the problem of positioning of multiple electron fields is more complicated than in the case of photon beam. In this study we investigated the dose uniformity at the junction region of adjacent electron fields in different field separations for several cone sizes and beam energies with a particular closed-sided applicator by using film dosimetry. Optimum field separation found in this study depends on applicator cone size and beam energy combination.
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