University Library
  • Login
A gateway to Melbourne's research publications
Minerva Access is the University's Institutional Repository. It aims to collect, preserve, and showcase the intellectual output of staff and students of the University of Melbourne for a global audience.
View Item 
  • Minerva Access
  • Medicine, Dentistry & Health Sciences
  • Sir Peter MacCallum Department of Oncology
  • Sir Peter MacCallum Department of Oncology - Research Publications
  • View Item
  • Minerva Access
  • Medicine, Dentistry & Health Sciences
  • Sir Peter MacCallum Department of Oncology
  • Sir Peter MacCallum Department of Oncology - Research Publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

    Activation of hip prostheses in high energy radiotherapy and resultant dose to nearby tissue

    Thumbnail
    Download
    Published version (477.3Kb)

    Citations
    Scopus
    Web of Science
    Altmetric
    1
    1
    Author
    Keehan, S; Smith, RL; Millar, J; Esser, M; Taylor, ML; Lonski, P; Kron, T; Franich, RD
    Date
    2017-03-01
    Source Title
    Journal of Applied Clinical Medical Physics
    Publisher
    WILEY
    University of Melbourne Author/s
    Kron, Tomas
    Affiliation
    Sir Peter MacCallum Department of Oncology
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Keehan, S., Smith, R. L., Millar, J., Esser, M., Taylor, M. L., Lonski, P., Kron, T. & Franich, R. D. (2017). Activation of hip prostheses in high energy radiotherapy and resultant dose to nearby tissue. JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, 18 (2), pp.100-105. https://doi.org/10.1002/acm2.12058.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/258193
    DOI
    10.1002/acm2.12058
    Abstract
    High energy radiotherapy can produce contaminant neutrons through the photonuclear effect. Patients receiving external beam radiation therapy to the pelvis may have high-density hip prostheses. Metallic materials such as those in hip prostheses, often have high cross-sections for neutron interaction. In this study, Thackray (UK) prosthetic hips have been irradiated by 18 MV radiotherapy beams to evaluate the additional dose to patients from the activation products. Hips were irradiated in- and out-of field at various distances from the beam isocenter to assess activation caused in-field by photo-activation, and neutron activation which occurs both in and out-of-field. NaI(Tl) scintillator detectors were used to measure the subsequent gamma-ray emissions and their half-lives. High sensitivity Mg, Cu, P doped LiF thermoluminescence dosimeter chips (TLD-100H) were used to measure the subsequent dose at the surface of a prosthesis over the 12 h following an in-field irradiation of 10,000 MU to a hip prosthesis located at the beam isocenter in a water phantom. 53 Fe, 56 Mn, and 52 V were identified within the hip following irradiation by radiotherapy beams. The dose measured at the surface of a prosthesis following irradiation in a water phantom was 0.20 mGy over 12 h. The dose at the surface of prostheses irradiated to 200 MU was below the limit of detection (0.05 mGy) of the TLD100H. Prosthetic hips are activated by incident photons and neutrons in high energy radiotherapy, however, the dose resulting from activation is very small.

    Export Reference in RIS Format     

    Endnote

    • Click on "Export Reference in RIS Format" and choose "open with... Endnote".

    Refworks

    • Click on "Export Reference in RIS Format". Login to Refworks, go to References => Import References


    Collections
    • Minerva Elements Records [45770]
    • Sir Peter MacCallum Department of Oncology - Research Publications [728]
    Minerva AccessDepositing Your Work (for University of Melbourne Staff and Students)NewsFAQs

    BrowseCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects
    My AccountLoginRegister
    StatisticsMost Popular ItemsStatistics by CountryMost Popular Authors