ESTRO 2024 - Abstract Book

S3385

Physics - Detectors, dose measurement and phantoms

ESTRO 2024

Conclusion:

The obtained results show the capability of the ultra-thin SiC detectors of measuring at the irradiation point, with a time resolution of the order of 10’s of ns, the small variations of the instantaneous dose rate within the pulse, which is one of the crucial parameters to measure for a complete understanding of the FLASH effect in in-vitro and in-vivo experiments. The SiC results have been successfully compared to the ones obtained with ACCT detectors considered as the reference monitoring system. Moreover, the possibility of using in-transmission ultra-thin membranes with a negligible perturbation of the beam in terms of energy and angular distribution is particularly promising for the beam monitoring of UHDR beams especially in the clinical perspective and will be further investigated.

Keywords: Monitoring, FLASH radiotherapy, Silicon Carbide

References:

[1] F. Romano et al., Appl. Sci. 2023, 13, 2986

[2] Oesterle R, Gonçalves Jorge P, Grilj V, et al. Implementation and validation of a beam-current transformer on a medical pulsed electron beam LINAC for FLASH-RT beam monitoring. J Appl Clin Med Phy. 2021;1–7.