Commissioning a newly developed treatment planning system, VQA Plan, for fast-raster scanning of carbon-ion beams.

ABSTRACT: In this study, we report our experience in commissioning a commercial treatment planning system (TPS) for fast-raster scanning of carbon-ion beams. This TPS uses an analytical dose calculation algorithm, a pencil-beam model with a triple Gaussian form for the lateral-dose distribution, and a beam splitting algorithm to consider lateral heterogeneity in a medium. We adopted the mixed beam model as the relative biological effectiveness (RBE) model for calculating the RBE values of the scanned carbon-ion beam. To validate the modeled physical dose, we compared the calculations with measurements of various relevant quantities as functions of the field size, range and width of the spread-out Bragg peak (SOBP), and depth-dose and lateral-dose profiles for a 6-mm SOBP in water. To model the biolo

SUBMITTER: Yagi M 

PROVIDER: S-EPMC9089877 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature