The Pb-Test is an energy dispersive x-ray fluorescence (EDXRF) spectrometer that uses a
sealed, highly purified Cobalt-57 radioisotope source (<12 mCi) to excite a test sample's
constituent elements. The Pb-Test utilizes the recently developed Cadmium Telluride (CdTe)
Schottky diode detectors. The age of the detector at the time of testing was approximately
4 to 5 months. Each element produces x-rays at a unique set of energies, allowing one to
non-destructively measure the elemental composition of a sample. These characteristic
x-rays are continuously detected, identified, and quantified by the spectrometer during
sample analysis. In other words, the energy of each x-ray identifies a particular element
present in the sample and the rate at which the x-rays of a given energy are emitted
allows the analyzer to determine the quantity of a particular element present in that
sample. Signals from the detector are amplified, digitized, and then quantified via an
integrated multichannel analyzer and data processor. Sample test results are displayed in
total micrograms of lead per dust-wipe. KeyMaster did not provide a reporting limit for
the instrument during the verification test.
For more information from the manufacturer, click here: http://www.keymaster-tech.com