G - Physics – 01 – N
Patent
G - Physics
01
N
358/12
G01N 23/223 (2006.01)
Patent
CA 1134067
A B S T R A C T A field portable X-ray fluorescent spectrometer is described including a multichannel analyzer and a plurality of interchangeable sensor heads. Each sensor head permits one of several radiation sources to irradiate a material to be analyzed. The returned radiation is detected by a correspond- ing detector which provides corresponding data in response. The multichannel analyzer uses the resulting detector data to calibrate the sensor head. Each sensor head includes circuitry for identifying itself to the multichannel analyzer. The analyzer automatically adapts its operation in accordance with this identification. The multichannel analyzer utilizes the detector data to accumulate an energy spectrum of the material being analyzed. A memory is provided for storing a number of reference spectra, any of one of which may be compared with the acquired spectrum for identification purposes. The memory also stores previously acquired spectra for later analysis. The analyzer also includes other operational features, such as normalization, window control, and ratio and concentration determination, to permit the operator to quantitatively analyze materials in the field.
345097
Macrae & Co.
Martin Marietta Corporation
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