ESTRO 2025 - Abstract Book

S2570

Physics - Detectors, dose measurement and phantoms

ESTRO 2025

Conclusion: The scintillator detector was found to have a negligible sensitivity to additional fibre for measurements in the primary beam, whereas a strong influence of the fibre cable was found during the measurements in low-dose area of the beam. Therefore, caution must be taken when the scintillator is outside the primary beam.

Keywords: Scintillators, fibre irradiation, in-vivo

References: [1] Klavsen MF, Ankjærgaard C, Behrens CP, Vogelius IR, Boye K, Hansen RH, et al. Time-resolved plastic scintillator dosimetry in MR linear accelerators without image distortion. Radiat Meas 2022;154. https://doi.org/10.1016/j.radmeas.2022.106759. [2] Uijtewaal P, Côté B, Foppen T, de Vries W, Woodings S, Borman P, et al. Performance of the HYPERSCINT scintillation dosimetry research platform for the 1.5 T MR-linac. Phys Med Biol 2023;68. https://doi.org/10.1088/1361-6560/acb30c. [3] Riis HL, Christiansen RL, Tilly N, Tilly D. Dosimetric validation of the couch and coil model for high-field MR linac treatment planning. Z Med Phys 2023. https://doi.org/https://doi.org/10.1016/j.zemedi.2023.02.002.

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