Recent Developments in Basic Brachytherapy Physics

  • Jeffrey F. Williamson
Part of the Medical Radiology book series (MEDRAD)


Brachytherapy physics research has experienced a renaissance ofcreative and innovative developments over the last decade which have only begun to influence clinical practice. The purpose of this chapter is to review the major innovations in singlesource brachytherapy dosimetry introduced during the last 10 years. Among these developments are:
  1. 1.

    Development of new low-energy isotopes for brachytherapy, including 103Pd, 241Am, 143Sm, and 169Yb, with photon energies in the range of 23–100 keV

  2. 2.

    Introduction of new physical configurations of conventional isotopes (137Cs and 192Ir) in response to the proliferation of high- and low-dose-rate remote afterloading devices

  3. 3.

    Validation of brachytherapy dose-measurement techniques and acceptance of directly measured dose distributions for clinical treatment planning

  4. 4.

    Validation of Monte Carlo photon-transport simulation as a clinical dosimetry tool



Dose Rate Dose Distribution 125I Seed Radiochromic Film Primary Photon 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Jeffrey F. Williamson
    • 1
  1. 1.Mallinckrodt Institute of Radiology, Physics SectionRadiation Oncology CenterSt. LouisUSA

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