• Login
    ARAN - Access to Research at NUI Galway
    View Item 
    •   ARAN Home
    • Support Services
    • Externally hosted open access publications with NUI Galway authors (2)
    • View Item
    •   ARAN Home
    • Support Services
    • Externally hosted open access publications with NUI Galway authors (2)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of ARANCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsTypesThis CollectionBy Issue DateAuthorsTitlesSubjectsTypes

    My Account

    LoginRegister

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Help

    How to submit and FAQs

    An investigation into the use of mmctp to tune accelerator source parameters and testing its clinical application

    Thumbnail
    View/Open
    Full Text
    Date
    2013-03-01
    Author
    Conneely, Elaine
    Alexander, Andrew
    Stroian, Gabriella
    Seuntjens, Jan
    Foley, Mark J.
    Metadata
    Show full item record
    Usage
    This item's downloads: 0 (view details)
    Cited 15 times in Scopus (view citations)
    
    Recommended Citation
    Conneely, Elaine; Alexander, Andrew; Stroian, Gabriella; Seuntjens, Jan; Foley, Mark J. (2013). An investigation into the use of mmctp to tune accelerator source parameters and testing its clinical application. Journal of Applied Clinical Medical Physics 14 (2), 3-14
    Published Version
    https://aapm.onlinelibrary.wiley.com/doi/pdf/10.1120/jacmp.v14i2.3692
    Abstract
    This paper presents an alternative method to tune Monte Carlo electron beam parameters to match measured data using a minimal set of variables in order to reduce the model setup time prior to clinical implementation of the model. Monte Carlo calculations provide the possibility of a powerful treatment planning verification technique. The nonstandardized and nonautomated process of tuning the required accelerator model is one of the reasons for delays in the clinical implementation of Monte Carlo techniques. This work aims to establish and verify an alternative tuning method that can be carried out in a minimal amount of time, allowing it to be easily implemented in a clinical setting by personnel with minimal experience with Monte Carlo methods. This tuned model can then be incorporated into the MMCTP system to allow the system to be used as a second dose calculation check for IMRT plans. The technique proposed was used to establish the primary electron beam parameters for accelerator models for the Varian Clinac 2100 6 MV photon beam using the BEAMnrc Monte Carlo system. The method is intended to provide a clear, direct, and efficient process for tuning an accelerator model using readily available clinical quality assurance data. The tuning provides a refined model, which agrees with measured dose profile curves within 1.5% outside the penumbra or 3 mm in the penumbra, for square fields with sides of 3 cm up to 30 cm. These models can then be employed as the basis for Monte Carlo recalculations of dose distributions, using the MMCTP system, for clinical treatment plans, providing an invaluable assessment tool. This was tested on six IMRT plans and compared to the measurements performed for the pretreatment QA process. These Monte Carlo values for the average dose to the chamber volume agreed with measurements to within 0.6%.
    URI
    http://hdl.handle.net/10379/10871
    Collections
    • Externally hosted open access publications with NUI Galway authors (2)
    • Copyright @ NUI Galway
    • Library
    • NUI Galway