Beam properties within the momentum acceptance of a clinical gantry beamline for proton therapy.

ABSTRACT:

Purpose

Energy changes in pencil beam scanning proton therapy can be a limiting factor in delivery time, hence, limiting patient throughput and the effectiveness of motion mitigation techniques requiring fast irradiation. In this study, we investigate the feasibility of performing fast and continuous energy modulation within the momentum acceptance of a clinical beamline for proton therapy.

Methods

The alternative use of a local beam degrader at the gantry coupling point has been compared with a more common upstream regulation. Focusing on clinically relevant parameters, a complete beam properties characterization has been carried out. In particular, the acquired empirical data allowed to model and parametrize the errors in range and beam current to deliver clinical treatmen

SUBMITTER: Giovannelli AC 

PROVIDER: S-EPMC10234452 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature