title: MaMP and FeMP: computational mesh phantoms applied for studying the variation of WBC efficiency using a NaI(Tl) detector.
abstract: In a previous study, the counting efficiency calibration was calculated for 36 computational mesh phantoms called MaMP and FeMP-Male and Female Mesh Phantoms, which span variations in height, weight and gender. They were created to be used in a sitting configuration WBC set-up using an HPGe detector. Now this work is extended to investigate the influence of body sizes and the position of the detector on the counting efficiency (CE) for a different counting geometry. This was done by creating a new set of MaMP and FeMP mesh phantoms lying on a reclining chair and by studying the variation of the counting efficiency using a NaI(Tl) detector for the WBC set-up of SCK-CEN. The deviation of the CE due to the detector's position with respect to the phantom was investigated. Correlations were also studied for CE as a function of trunk volume, waist-hips ratio (WHR) and waist-chest ratio (WCR) for different mesh phantoms.
authors.affiliation: Belgian Nuclear Research Centre (SCK•CEN), Rad. Prot. Dosimetry and Calibration, Boeretang, 200 Mol 2400, Belgium.
authors.forename: T C
authors.initials: TC
authors.lastname: Ferreira Fonseca
authors.forename: R
authors.initials: R
authors.lastname: Bogaerts
authors.forename: A L
authors.initials: AL
authors.lastname: Lebacq
authors.forename: R M
authors.initials: RM
authors.lastname: Ribeiro
authors.forename: F
authors.initials: F
authors.lastname: Vanhavere
mesh_terms: D005260:Female; D006801:Humans; D007454:Iodides; D008297:Male; D019047:Phantoms, Imaging; D012964:Sodium; D013793:Thallium; D014915:Whole-Body Counting
chemical_list: D007454:Iodides; C477364:thallium-doped sodium iodide; D012964:Sodium; D013793:Thallium