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

Exposures to the extremities have increased due to new therapeutic protocols involving beta sources. In this study, thermoluminescent dosimeters based on alpha-Al(2)O(3):C were used to map the dose distribution to the extremities of physicians and paramedical personnel handling beta emitters. The re...

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Published inPhysica medica Vol. 26; no. 1; pp. 44 - 48
Main Authors Mancosu, Pietro, Cantone, Marie Claire, Veronese, Ivan, Giussani, Augusto
Format Journal Article
LanguageEnglish
Published Italy 01.01.2010
Subjects
Aluminum Oxide
Beta Particles
Carbon Compounds, Inorganic
Feasibility Studies
Fingers
Hand
Health Physics
Humans
Medical Staff, Hospital
Occupational Exposure
Physicians
Radiation Dosage
Retrospective Studies
Thermoluminescent Dosimetry - instrumentation
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Summary:Exposures to the extremities have increased due to new therapeutic protocols involving beta sources. In this study, thermoluminescent dosimeters based on alpha-Al(2)O(3):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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1120-1797
1724-191X
1724-191X
DOI:10.1016/j.ejmp.2009.02.004