Spectroscopic characterization of radiochromic films for radiation therapy dosimetry

Arash Darafsheh; Daniel J. Mulrow; Elsa Y. León-Marroquín; Rao Khan

doi:10.1117/12.2510927

27 February 2019 Spectroscopic characterization of radiochromic films for radiation therapy dosimetry

Arash Darafsheh, Daniel J. Mulrow, Elsa Y. León-Marroquín, Rao Khan

Proceedings Volume 10870, Design and Quality for Biomedical Technologies XII; 108700F (2019) https://doi.org/10.1117/12.2510927
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

Radiochromic films are commonly used in radiation therapy dosimetry and quality assurance. However, their spectral response is studied only for a limited set of beam qualities used in radiation therapy. In this work, we investigate the spectral response of the EBT3 radiochromic films for a broad range of megavoltage photon and electron radiation beam qualities. Dose, dose rate, and inter-batch dependencies are investigated. For beam qualities studied in this work, we found that for a given batch, the spectral response of the EBT-3 radiochromic films is beam quality and dose-rate independent. However, the spectral response of the films is batch-dependent.

Citation Download Citation

Arash Darafsheh, Daniel J. Mulrow, Elsa Y. León-Marroquín, and Rao Khan "Spectroscopic characterization of radiochromic films for radiation therapy dosimetry", Proc. SPIE 10870, Design and Quality for Biomedical Technologies XII, 108700F (27 February 2019); https://doi.org/10.1117/12.2510927

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