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

Dual scattering foil design for poly-energetic electron beams.

K K Kainz1, J A Antolak, P R Almond

  • 1Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030-4009, USA. kkainz@mdanderson.org

Physics in Medicine and Biology
|March 31, 2005
PubMed
Summary
This summary is machine-generated.

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

SU-E-T-101: Dosimetry Intercomparison for a Synchrotron-Produced Monochromatic X-Ray Beam.

Medical physics·2017
Same author

SU-E-T-155: Dose Response Curve of EBT2 and EBT3 Radiochromic Films to a Synchrotron-Produced Monochromatic X-Ray Beam.

Medical physics·2017
Same author

Evaluating the accuracy of a three-term pencil beam algorithm in heterogeneous media.

Physics in medicine and biology·2017
Same author

The impact of temporal inaccuracies on 4DCT image quality.

Medical physics·2007
Same author

Dose properties of x-ray beams produced by laser-wakefield-accelerated electrons.

Physics in medicine and biology·2005
Same author

Dose properties of a laser accelerated electron beam and prospects for clinical application.

Medical physics·2004

Laser wakefield acceleration (LWFA) produces electron beams suitable for therapy. Scattering foil systems designed for mono-energetic beams effectively shape poly-energetic LWFA beams, ensuring clinical applicability.

Area of Science:

  • Medical Physics
  • Plasma Physics
  • Particle Acceleration

Background:

  • Laser wakefield acceleration (LWFA) generates electron beams with energies (6-20 MeV) suitable for radiation therapy.
  • LWFA electron beams exhibit a broad energy spectrum, posing challenges for therapeutic applications.
  • Existing scattering foil systems are designed for mono-energetic beams, necessitating evaluation for poly-energetic LWFA beams.

Purpose of the Study:

  • To assess the suitability of scattering foil systems, designed for mono-energetic beams, for poly-energetic electron beams from LWFA.
  • To determine if a significant energy spread in LWFA electron beams impacts the flatness and usability of the therapeutic beam profile.

Main Methods:

  • Dual scattering foil systems were designed using analytical Gaussian multiple-Coulomb scattering theory for mono-energetic beams.

Related Experiment Videos

  • Radial planar fluence profiles for poly-energetic beams (0.5-6.5 MeV spread) were calculated analytically and via Monte Carlo (EGS/BEAM code).
  • Analytic calculations guided foil adjustments, while Monte Carlo simulations verified results and analyzed phase-space characteristics.

    • Main Results:

    • The flatness of the scattered electron beam was found to be largely insensitive to the input energy spectrum's width.
    • Analytical and Monte Carlo dose calculations showed excellent agreement in the central beam region.
    • Minor discrepancies outside the usable field were observed, potentially due to small-angle approximations, but did not alter the main conclusion.

    Conclusions:

    • Scattering foil systems designed for mono-energetic beams are suitable for poly-energetic LWFA electron beams with the same central energy.
    • LWFA electron beams can be effectively shaped for therapeutic applications using established scattering foil designs.
    • Further Monte Carlo studies are recommended to investigate the dosimetric properties of LWFA-generated electron beams comprehensively.