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An efficient approach to routine TL dosimetry

P McGhee1, S Humphreys, P Dunscombe

  • 1Department of Medical Physics, Northeastern Ontario Regional Cancer Centre, Sudbury.

Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists
|January 1, 1993
PubMed
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A new protocol using thermoluminescence (TL) of lithium fluoride offers accurate clinical dosimetry. This labor-saving method achieves +/- 5% accuracy for doses over 1cGy, proving adequate for medical applications.

Area of Science:

  • Medical Physics
  • Radiation Dosimetry

Background:

  • Clinical dosimetry requires accurate radiation dose measurements.
  • Traditional methods can be labor-intensive.

Purpose of the Study:

  • To present a new, labor-saving protocol for clinical dosimetry.
  • To evaluate the accuracy, linearity, reproducibility, and fading of the thermoluminescence (TL) response.

Main Methods:

  • Utilized lithium fluoride for thermoluminescence (TL) measurements.
  • Developed and applied a novel protocol for dosimetric analysis.

Main Results:

  • The TL protocol demonstrated accuracy within +/- 5% at the 95% confidence level for doses exceeding 1cGy.
  • Evaluated linearity, reproducibility, and fading characteristics of the TL response.

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Conclusions:

  • The new protocol significantly saves labor in clinical dosimetry.
  • The method provides adequate accuracy for clinical applications.