A method detection limit for potential in vivo arsenic measurements with a 50 W x-ray tube.
Using a 50 W x-ray tube as the fluorescing source, an x-ray fluorescence system was designed to measure arsenic in superficial layers of tissue-simulating phantoms. The detection limit for arsenic in the phantoms at a setting of 35 kV and with 200 microm of a Mo filter was 0.40 +/- 0.06 microg As g(-1). This measurement results in an effective dose of 0.6 microSv.
Studinski
Ryan C N
RC
Department of Medical Physics, The Ottawa Hospital Regional Cancer Centre, Ottawa, Ontario K1H 8L6, Canada. rstudinski@ottawahospital.on.ca
McNeill
Fiona E
FE
O'Meara
Joanne M
JM
Chettle
David R
DR
D001151:Arsenic / Q000032:analysis* / Q000737:chemistry; D002138:Calibration; D004581:Electronics; D004867:Equipment Design; D006801:Humans; D015233:Models, Statistical; D009010:Monte Carlo Method; D019047:Phantoms, Imaging; D012542:Scattering, Radiation; D013052:Spectrometry, X-Ray Emission / Q000295:instrumentation / Q000379:methods*; D014965:X-Rays
D001151:Arsenic