Spatial distribution of beta extremity doses in nuclear medicine: A feasibility study with thin α-Al2O3:C TLDs

Pietro Mancosu, Marie Claire Cantone, Ivan Veronese, Augusto Giussani

Research output: Contribution to journalArticle

Abstract

Exposures to the extremities have increased due to new therapeutic protocols involving beta sources. In this study, thermoluminescent dosimeters based on α-Al2O3:C were used to map the dose distribution to the extremities of physicians and paramedical personnel handling beta emitters. The results showed a strong inhomogeneous dose distribution between different phalanxes, fingers and hands of all the investigated subjects, without an indication of systematic trends in the dose patterns. Consequently, conventional dosimetric practices, based on the use of wrist or ring dosimeters, may be not suitable for providing reliable assessments of the inhomogeneous doses received at the fingertip.

Original languageEnglish
Pages (from-to)44-48
Number of pages5
JournalPhysica Medica
Volume26
Issue number1
DOIs
Publication statusPublished - Jan 2010

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Keywords

  • α-AlO:C
  • Beta radiation
  • Extremity dosimetry
  • TLD

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging
  • Physics and Astronomy(all)

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