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Related Experiment Videos

Code of practice for clinical proton dosimetry.

S Vynckier1, D E Bonnett, D T Jones

  • 1UCL, Cliniques Universitaires Saint-Luc, Belgium.

Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

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Experimental assessment of proton dose calculation accuracy in inhomogeneous media.

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)·2017

This document provides recommendations for accurate absorbed dose determination in clinical proton therapy. Implementing these proton dosimetry guidelines ensures consistent and reliable treatment delivery for patients.

Area of Science:

  • Medical Physics
  • Radiation Oncology

Background:

  • Clinical proton beams require standardized dosimetry for accurate absorbed dose determination.
  • Current proton dosimetry methods lack uniformity, impacting treatment consistency.

Purpose of the Study:

  • To establish recommendations for determining absorbed dose to tissue for clinical proton beams.
  • To promote uniformity in proton dosimetry through a chosen Code of Practice.

Main Methods:

  • Selected a Code of Practice for proton beam dosimetry.
  • Recommended dosimeter calibration via calorimeter, Faraday cup, or ionization chamber with 60Co factor.
  • Provided physical parameters and a worksheet for ionization chamber measurements.

Main Results:

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  • Calibrations recommended in water at the spread-out-Bragg-peak center.
  • Dose distributions should be measured in a water phantom.
  • Estimated calibration error is less than +/- 5% (1 S.D.).
  • Conclusions:

    • Adoption of this Code of Practice will standardize proton dosimetry.
    • Standardized dosimetry facilitates reliable clinical information exchange.
    • This practice focuses solely on absorbed dose determination, not biological effects.