Two-dimensional dose distribution of 125I seeds. Academic Article uri icon

Overview

abstract

  • Two-dimensional dose distribution has been measured for the new (model 6711) 125I seeds used in interstitial implants. Two independent methods, using a silicon diode or thermoluminescent dosimeters, yielded identical results. At any given distance r from the seed center, the dose varies with theta, the angle relative to the seed's axis. Similarly, the r dependence of the dose distribution is different at various theta values. These observations can be qualitatively understood in terms of several factors, namely, source encapsulation, geometrical relationship, and attenuation and scatter. Empirical expressions which approximate the measured results have been developed to facilitate clinical dose distribution calculations.

publication date

  • January 1, 1985

Research

keywords

  • Brachytherapy
  • Iodine Radioisotopes

Identity

Scopus Document Identifier

  • 0021823789

Digital Object Identifier (DOI)

  • 10.1118/1.595689

PubMed ID

  • 4047002

Additional Document Info

volume

  • 12

issue

  • 5