Optical spectral analysis of radiochromic films irradiated with radiation therapy beams

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Radiochromic films, owing to their high spatial resolution, are well-suited for radiation therapy dosimetry and quality aßurance 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.

Original languageEnglish
Title of host publicationDesign and Quality for Biomedical Technologies XIII
EditorsJeeseong Hwang, Gracie Vargas
PublisherSPIE
ISBN (Electronic)9781510632257
DOIs
StatePublished - Jan 1 2020
EventDesign and Quality for Biomedical Technologies XIII 2020 - San Francisco, United States
Duration: Feb 1 2020Feb 3 2020

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume11231
ISSN (Print)1605-7422

Conference

ConferenceDesign and Quality for Biomedical Technologies XIII 2020
CountryUnited States
CitySan Francisco
Period02/1/2002/3/20

Keywords

  • Department of Radiation Oncology
  • MO63110
  • St. Louis
  • USA
  • Washington University School of Medicine

Fingerprint Dive into the research topics of 'Optical spectral analysis of radiochromic films irradiated with radiation therapy beams'. Together they form a unique fingerprint.

  • Cite this

    Darafsheh, A., Zhao, T., & Khan, R. (2020). Optical spectral analysis of radiochromic films irradiated with radiation therapy beams. In J. Hwang, & G. Vargas (Eds.), Design and Quality for Biomedical Technologies XIII [112310I] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 11231). SPIE. https://doi.org/10.1117/12.2545272