Characterization of commercial detectors for absolute proton UHDR dosimetry on a compact clinical proton synchrocyclotron.

ABSTRACT:

Background

Modern compact proton synchrocyclotrons can achieve ultra-high dose rates ( ≥$ \ge $ 40 Gy/s) to support ultra-high-dose-rate (UHDR) preclinical experiments utilizing pencil beam scanning (PBS) protons. Unique to synchrocyclotrons is a pulsed proton time structure as compared to the quasi-continuous nature of other proton accelerators like isochronous cyclotrons. Thus, high instantaneous proton currents in the order of several µA must be generated to achieve UHDRs. This will lead to high doses-per-pulse (DPP), which may cause significant charge recombination for ionization chambers, which must be characterized for accurate UHDR dosimetry programs.

Purpose

In this work, we investigate the suitability of various commercial radiation detectors for accurate proton UHD

SUBMITTER: Setianegara J 

PROVIDER: S-EPMC12817210 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature