On the use of Al 2 O 3 :C and plastic scintillators for small-field dosimetry in MR-linacs

Fiber coupled luminescence detectors based on organic plastic scintillators or inorganic materials such as Al 2 O 3 :C are suitable for dosimetry in strong magnetic fields as found in MR-linacs. The main finding of this work was that field-output factor measurements at the maximum dose point are les...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-07, Vol.2799 (1), p.12017
Main Authors: Andersen, Claus E., Klavsen, Mads F., Ankjærgaard, Christina
Format: Article
Language:English
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Summary:Fiber coupled luminescence detectors based on organic plastic scintillators or inorganic materials such as Al 2 O 3 :C are suitable for dosimetry in strong magnetic fields as found in MR-linacs. The main finding of this work was that field-output factor measurements at the maximum dose point are less variable than if measured at the central beam axis (CAX). In contrast to plastic scintillators, Al 2 O 3 :C was found to have a yield of radioluminescence per dose that (within uncertainty) is independent of the magnetic field strength.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2799/1/012017