Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Second scatter contribution to dose in a cobalt-60 beam

J W Wong, R M Henkelman, A Fenster

    Medical Physics
    |November 1, 1981
    PubMed
    Summary

    This study quantifies doubly scattered photons in radiotherapy dose calculations. Second scatter dose is generally less than first scatter, except at remote sites, impacting treatment planning.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Reliability and concurrent validity of three-dimensional ultrasound for quantifying knee cartilage volume.

    Osteoarthritis and cartilage open·2022
    Same author

    Poster - Thurs Eve-02: 3 dimensional ultrasound-guided breast brachytherapy.

    Medical physics·2017
    Same author

    Poster - Thurs Eve-12: A needle-positioning robot co-registered with volumetric x-ray micro-computed tomography images for minimally-invasive small-animal interventions.

    Medical physics·2017
    Same author

    Sci-Fri AM: YIS-05: A new guidance device for lateral-approach stereotactic breast biopsy.

    Medical physics·2017
    Same author

    Reply to: Who Should Bear the Cost of Convenience? A Cost-effectiveness Analysis Comparing External Beam and Brachytherapy Radiotherapy Techniques for Early Stage Breast Cancer.

    Clinical oncology (Royal College of Radiologists (Great Britain))·2017
    Same author

    Anatomical pulmonary magnetic resonance imaging segmentation for regional structure-function measurements of asthma.

    Medical physics·2016

    Area of Science:

    • Medical Physics
    • Radiation Oncology
    • Computational Dosimetry

    Background:

    • Accurate radiotherapy dose calculations are crucial for effective cancer treatment.
    • Understanding photon scatter is essential for precise dose deposition modeling.
    • Doubly scattered photons represent a complex component of radiation transport.

    Purpose of the Study:

    • To investigate the contribution of doubly scattered photons to dose in a water phantom.
    • To analyze the spatial and spectral characteristics of second scatter dose.
    • To assess the implications for radiotherapy dose calculation approximations.

    Main Methods:

    • Employed semi-analytic and direct numerical integration techniques.
    • Calculated dose variations with depth and field radius.
    • Mapped important scattering site locations for second scatter dose.

    Main Results:

    • Second scatter dose is typically lower than first scatter dose, except for remote locations.
    • Second scatter dose deposition patterns resemble first scatter but with less distinct features.
    • Second scatter dose exhibits a more isotropic angular distribution compared to first scatter.

    Conclusions:

    • Doubly scattered photons have a quantifiable impact on dose distribution in radiotherapy.
    • Findings inform the development of more accurate approximate dose calculation methods.
    • The study highlights the need to consider second scatter in advanced treatment planning systems.

    Related Experiment Videos