title: A high-sensitivity multidetector whole-body counter.
abstract: A prototype multidetector shadow-shield whole-body counter is presented to be used as a monitor of internal contamination and as a tool in clinical research. The counter is equipped with 16 NaI(Tl) detectors located in the central region of a shielded tunnel surrounding the subject to be measured. The accuracy of the counting efficacy predictions was tested in a group of adults with various body shapes and sizes using X-ray absorptiometry. The precision of the total body potassium measurements allows the use of the counter in clinical follow-up studies.
authors.affiliation: Medical Physics Laboratory, Medical School, University of Ioannina, Ioannina 45110, Greece. jkalef@cc.uoi.gr
authors.forename: J A
authors.initials: JA
authors.lastname: Kalef-Ezra
authors.forename: S T
authors.initials: ST
authors.lastname: Valakis
authors.forename: T
authors.initials: T
authors.lastname: Soupsanas
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods*; D000328:Adult; D049628:Body Size; D002138:Calibration; D004867:Equipment Design; D006801:Humans; D008422:Materials Testing; D019047:Phantoms, Imaging; D017785:Photons; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012974:Sodium Iodide / Q000737:chemistry; D014915:Whole-Body Counting / Q000295:instrumentation* / Q000379:methods
chemical_list: D012974:Sodium Iodide