A method detection limit for potential in vivo arsenic measurements with a 50 W x-ray tube

Phys Med Biol. 2006 Nov 7;51(21):N381-7. doi: 10.1088/0031-9155/51/21/N01. Epub 2006 Oct 9.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arsenic / analysis*
  • Arsenic / chemistry
  • Calibration
  • Electronics
  • Equipment Design
  • Humans
  • Models, Statistical
  • Monte Carlo Method
  • Phantoms, Imaging
  • Scattering, Radiation
  • Spectrometry, X-Ray Emission / instrumentation
  • Spectrometry, X-Ray Emission / methods*
  • X-Rays

Substances

  • Arsenic