Development of a storage phosphor imaging system for proton pencil beam spot profile determination.

ABSTRACT:

Purpose

Accurate two-dimensional (2D) profile measurements at submillimeter precision are necessary for proton beam commissioning and periodic quality assurance (QA) purposes and are currently performed at our institution with a commercial scintillation detector (Lynx PT) with limited means for independent checks. The purpose of this work was to create an independent dosimetry system consisting of an in-house optical scanner and a BaFBrI:Eu²⁺ storage phosphor dosimeter by: (a) determining the optimal settings for the optical scanner, (b) measuring 2D proton spot profiles with the storage phosphors, and (c) comparing them to similar measurements using a commercial scintillation detector.

Methods

An in-house 2D laboratory optical scanner was constructed and spatiall

SUBMITTER: Setianegara J 

PROVIDER: S-EPMC9278562 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature