Characterization of a parallel beam CCD optical-CT apparatus for 3D radiation dosimetry

Nikola Krstajić, Simon J. Doran

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper describes the initial steps we have taken in establishing CCD based optical-CT as a viable alternative for 3-D radiation dosimetry. First, we compare the optical density (OD) measurements from a high quality test target and variable neutral density filter (VNDF). A modulation transfer function (MTF) of individual projections is derived for three positions of the sinusoidal test target within the scanning tank. Our CCD is then characterized in terms of its signal-to-noise ratio (SNR). Finally, a sample reconstruction of a scan of a PRESAGETM (registered trademark of Heuris Pharma, NJ, Skillman, USA.) dosimeter is given, demonstrating the capabilities of the apparatus.

    Original languageEnglish
    Article number026
    Pages (from-to)195-198
    Number of pages4
    JournalJournal of Physics: Conference Series
    Volume56
    DOIs
    Publication statusPublished - 2006

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