@inproceedings{ec3f200087d342bcb837f02270bd7d5b,
title = "Optical spectral analysis of radiochromic films irradiated with radiation therapy beams",
abstract = "Radiochromic films, owing to their high spatial resolution, are well-suited for radiation therapy dosimetry and quality a{\ss}urance purposes. However, their spectroscopic response to radiotherapy beams has not been comprehensively investigated, except for a limited subset of beam qualities. In this work, we explore the spectral response of the EBT3 and EBT-XD radiochromic film models to different clinical radiation beam qualities including photons and protons. The spectral response of EBT3 and EBT-XD films showed two peaks at 585 nm and 635 nm for both photon and proton irradiation. Beyond a certain batch- and model-dependent dose threshold a saturation behavior was observed in the primary absorption peak. For beam qualities studied in this work, the spectral response of proton-irradiated films showed a systematic under-response compared to their photon-irradiated counterparts in both EBT-3 and EBTXD radiochromic films models.",
keywords = "Department of Radiation Oncology, MO63110, St. Louis, USA, Washington University School of Medicine",
author = "Arash Darafsheh and Tianyu Zhao and Rao Khan",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Design and Quality for Biomedical Technologies XIII 2020 ; Conference date: 01-02-2020 Through 03-02-2020",
year = "2020",
doi = "10.1117/12.2545272",
language = "English",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
editor = "Jeeseong Hwang and Gracie Vargas",
booktitle = "Design and Quality for Biomedical Technologies XIII",
}