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

Improvement of linear accelerator depth-dose curves.

R C McCall, R D McIntyre, W G Turnbull

    Medical Physics
    |November 1, 1978
    PubMed
    Summary

    This study presents a new model for accelerator depth-dose curves, finding medium-Z materials optimal for X-ray targets and flatteners. The maximum dose (Dmax) is shown to be a function of average X-ray energy (E).

    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

    Room scattered neutrons.

    Medical physics·1999
    Same author

    Shielding for thermal neutrons.

    Medical physics·1997
    Same author

    The effect of the static magnetic field on the response of radiation survey instruments.

    Health physics·1993
    Same author

    The Stanford Linear Accelerator Center pulsed x-ray facility.

    Health physics·1987
    Same author

    Immobilization of coastal grizzly bears with etorphine hydrochloride.

    Journal of wildlife diseases·1980
    Same author

    Heavy metal shielding for neutron sources.

    Health physics·1978

    Area of Science:

    • Medical Physics
    • Radiation Oncology
    • Computational Physics

    Background:

    • Accurate modeling of accelerator depth-dose curves is crucial for effective radiation therapy planning.
    • Existing models may lack sufficient physical basis or experimental validation for diverse target and flattener materials.

    Purpose of the Study:

    • To develop and validate a semiempirical analytic model for accelerator depth-dose curves.
    • To investigate the influence of target and flattener atomic number (Z) on X-ray spectra and dose distributions.
    • To establish a relationship between maximum dose (Dmax) and average X-ray energy (E).

    Main Methods:

    • Development of a semiempirical analytic model for depth-dose curve description.
    • Utilizing Monte Carlo simulations to calculate dose distributions for various materials.
    • Comparing simulation results with experimental data for validation.
    • Empirical analysis to determine the relationship between Dmax and average X-ray energy (E).

    Main Results:

    • The study proposes a physically explained, semiempirical analytic model for accelerator depth-dose curves.
    • Monte Carlo calculations indicate that medium-atomic number (Z) materials are optimal for X-ray targets and flatteners.
    • A direct empirical relationship was found between the maximum dose (Dmax) and the average energy (E) of the X-ray spectrum.
    • The variation of average energy (E) with the atomic number (Z) of the target and flattener was demonstrated.

    Conclusions:

    • The developed semiempirical model provides a reliable method for describing accelerator depth-dose curves.
    • Medium-Z materials are recommended for X-ray targets and flatteners in accelerator design for improved dose characteristics.
    • The established relationship between Dmax and E simplifies the prediction of dose distributions based on spectral properties.

    Related Experiment Videos