A. Croteau, S. Caron, A. Rink, D. Jaffray, O. Mermut "Real-time optical fiber dosimeter probe" Proc. of SPIE, 7894, art. no 789406, 2011
Résumé: There is a pressing need for a passive optical fiber dosimeter probe for use in real-time monitoring of radiation dose delivered to clinical radiation therapy patients. An optical fiber probe using radiochromic material has been designed and fabricated based on a thin film of the radiochromic material on a dielectric mirror. Measurements of the net optical density vs. time before, during, and after irradiation at a rate of 500cGy/minute to a total dose of 5 Gy were performed. Net optical densities increased from 0.2 to 2.0 for radiochromic thin film thicknesses of 2 to 20 µm, respectively.
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