title: Performance appraisals of digital spectroscopy systems for the measurement of bone lead.
abstract: The performances of two new digital spectroscopy systems are compared to a conventional analogue amplifier ADC system for the 109Cd based K X-ray fluorescence in vivo measurement of bone lead. Canberra's DSA-2000 and ORTEC's DSPEC(PLUS) were found to show 27.3 and 10.8% improvements in measurement precision respectively, when compared to an optimized conventional system. The resulting improvements in minimum detection limit, compared with the conventional limit of 6-10 microg Pb/g bone mineral, were reductions of 1.5-2.5 microg Pb/g bone mineral for the DSA-2000, and 0.5-1.0 microg Pb/g bone mineral for the DSPEC(PLUS).
authors.affiliation: Department of Physics and Astronomy, McMaster University, Hamilton, ON, Canada. batemasn@mcmaster.ca
authors.forename: S N
authors.initials: SN
authors.lastname: Bateman
authors.forename: A
authors.initials: A
authors.lastname: Pejović-Milić
authors.forename: I M
authors.initials: IM
authors.lastname: Stronach
authors.forename: F E
authors.initials: FE
authors.lastname: McNeill
authors.forename: D R
authors.initials: DR
authors.lastname: Chettle
mesh_terms: D001842:Bone and Bones / Q000737:chemistry*; D007854:Lead / Q000032:analysis*; D008953:Models, Anatomic; D019047:Phantoms, Imaging; D012815:Signal Processing, Computer-Assisted; D013052:Spectrometry, X-Ray Emission / Q000379:methods*
chemical_list: D007854:Lead