EURADOS Intercomparison of age-dependent thyroid phantoms for thyroid monitoring in nuclear or radiological emergencies
Résumé
Direct in-vivo measurement of radioiodine in the thyroid by gamma spectrometry is usually the
preferred method for assessing intake of 131I. To obtain reliable values of the committed doses related
to these accidental intakes, detector systems have to be properly calibrated, using age-dependent
thyroid phantoms for simulating the internal contamination for individuals of different age groups.
In-vivo monitoring laboratories all over the world usually use adult thyroid phantoms for calibrating
purposes, however, only a few of them have age-dependent thyroid phantoms. For improving and
harmonizing the calibration procedures for in-vivo thyroid monitoring, particularly for children in
case of radiological or nuclear emergencies, members of the EURADOS WG7 “Internal Dosimetry”
have organized and carried out an intercomparison exercise aimed at comparing different agedependent
thyroid phantoms. Intercomparison measurements were conducted at the Whole Body
Counter Laboratory (WBC) of CIEMAT. This paper presents the design and development of the
campaign as well as a summary of the most relevant results obtained and conclusions.
Domaines
Physique [physics]| Origine | Fichiers produits par l'(les) auteur(s) |
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