METHOD FOR EXTRACTING OUTPUT OF IRREGULAR ELECTRON BEAM BY SIMPLIFIED TWO-SOURCE MODEL

摘要

PURPOSE: A method for extracting output of irregular electron beams by a simplified two-source model is provided to obtain a few factors and apply the factors to a simplified two-source model, thereby accurately extracting a relative output factor of irregular electron beams within a short time when the electron beams are applied to a patient. CONSTITUTION: A relative output factor of irregular electron beams is extracted by obtaining effective SSD(fe) of each electron beam energy, the distance of a source, and a secondary rate per unit length generated in a block with using a simplified two-source model.