Efficiency calibration of a whole-body-counting measurement setup using a modular physical phantom

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Abstract

Physical phantoms are used at whole body counting laboratories to calibrate detector systems for in-vivo monitoring of radionuclides internally deposited in the body. Such phantoms should realistically represent the human body in the selected measurement geometry. In the past, the BOMAB(1) (Bottle Manikin Absorption) phantom was used for calibration purposes at the laboratory for Anthropogammametry of SCK•CEN. However, it was considered inadequate because of leakage risk and the volume of radioactive waste produced at each calibration. As a consequence of this fact a new phantom was developed. The Emma phantom is made of Epramid blocks (cylinders, cuboids and elliptical cylinders) in which sealed line sources can be introduced. The phantom is modular so that different body geometries can be made. This paper presents the phantom with its sources. The phantom was used to calibrate the SCK•CEN whole body counting (WBC) setup. Efficiency calibration curves were obtained for different body geometries. The results of the calibration are discussed.

Details

Original languageEnglish
Pages (from-to)411-414
JournalRadiation protection dosimetry
Volume144
Issue number1-4
DOIs
Publication statusPublished - Feb 2011
EventEuropean Conference on Individual Monitoring of Ionising Radiation - Greek Atomic Energy Commision, Athens, Greece
Duration: 8 Mar 201012 Mar 2010

Keywords

  • whole-body-counting, calibration, physical phantom

ID: 271343