Radioluminescence fiber optic and imaging dosimetry in radiation therapy

Abstract

Accurate and precise measurement of the radiation energy delivered to and absorbed by the patients' tissues is of great importance in radiation therapy quality assurance. Utilizing radioluminescence of selected materials for radiation detection has shown great potential for developing high spatiotemporal resolution dosimeters for radiation therapy applications. Optical fiber-based scintillator dosimeters are promising candidates for small-field and in vivo dosimetry. Scintillation imaging, on the other hand, is a promising method for multi-dimensional dosimetry. There are, however, challenges associated with these techniques, such as mitigating the impact of Cherenkov radiation and ionization quenching of scintillators in certain radiation fields. Here, we present the progress in radioluminescence dosimetry techniques for radiation therapy applications.