Fiche détaillée de la technologie

 
Titre de la technologie / Technology Title
    Système de dosimétrie avec fibres optiques scintillantes et caméra CCD couleur pour les contrôles de qualité et la mesure de dose in-vivo en radiothérapie.
Description / Description
    A clinical prototype of a scintillating fiber dosimeter array has been developed. The system comprises twenty-nine scintillating fiber detectors spaced 1 cm apart. The detectors are coupled to clear non-scintillating transport fibers that collect scintillation photons and transport them to a color charge-coupled device (CCD) placed on the treatment table outside of the primary beam. A spectral discrimination technique is used to remove the Cerenkov radiation contaminating the scintillation signal. The CCD is encased in a custom designed, Cerrobend shielded aluminum carrying-case equipped with a custom-made optical fiber connector enabling reproducible removal and insertion of the fibers. This will allow for “hot swappable” detector modules. Residual radiative noise on the CCD is removed with a post-processing algorithm. All dose points are processed simultaneously.


    The scintillating fiber dosimeter array prototype is found to be accurate, precise and practical. The current system detector capacity exceeds 3500 measurement points per single irradiation. Such array detectors should find application for IMRT QA and general beam dosimetry monitoring measurements.
Fiche descriptive / Fact sheet
    Inventeur / Inventor Collaborateur(s) / Collaborator(s) Contact / Contact Champs(s) d'intérêt(s) / Industry segment(s) Brevet(s) / Patent(s) Numéro de la technologie / File Number : 00806
    www.ulaval.ca