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Li, C.* ; Hauck, B.* ; Capello, K.* ; Nogueira, P. ; Lopez, M.A.* ; Kramer, G.H.*

Counting 241Am in the BfS human skull phantom on contact - evaluation in the human monitoring laboratory.

Health Phys. 108, 380-382 (2015)
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Open Access Green as soon as Postprint is submitted to ZB.
Skull counting can be used to assess the activity of radionuclides internally deposited in the bone. The Human Monitoring Laboratory (HML) at Health Canada conducted the measurement of Am in the BfS (Bundesamt für Strahlenschuts) skull phantom on contact with the skull for various positions. By placing the detector in contact, the HML can improve the counting efficiency by over 20% compared to placing the detector 1 cm above the surface of the skull. Among all the positions tested, the forehead position is the preferred counting geometry due to the design of HML's counting facility and the comfort it would provide to the individual being counted, although this counting position did not offer the highest counting efficiency for the gamma rays (either the 59.5 keV or the 26.3 keV) emitted by Am.
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Publication type Article: Journal article
Document type Scientific Article
Keywords 241am ; Bioassay ; Bones ; Human ; Phantom; Calibration Reference Center; Bioassay
ISSN (print) / ISBN 0017-9078
e-ISSN 1538-5159
Journal Health Physics
Quellenangaben Volume: 108, Issue: 3, Pages: 380-382 Article Number: , Supplement: ,
Publisher Lippincott Williams & Wilkins
Publishing Place Philadelphia
Reviewing status Peer reviewed