Evaluation of a prototype array for daily quality assurance in spot scanning proton therapy.

ABSTRACT:

Background

Quality assurance (QA) on a daily basis is an essential task in radiotherapy. In pencil beam scanning proton therapy (PBS), there is a lack of available practical QA devices for routine daily QA in comparison to conventional radiotherapy.

Purpose

The aim was to characterize and evaluate a prototype for the task of daily QA routine for PBS with parameters recommended by the AAPM TG 224, that is, the dose output constancy, the spot position and the distal range verification. Furthermore, a time efficient calibration method for fast and reliable daily QA routine was established for the prototype.

Methods

First, a calibration routine was designed and evaluated, which characterizes the array response and allows for a conversion of the measured signal to clinical

SUBMITTER: Flatten V 

PROVIDER: S-EPMC11540015 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature