SYSTEM AND METHOD FOR IDENTIFICATION OF COUNTERFEIT GOLD JEWELRY USING XRF
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
Feb 3, 2012
filing date -
Feb 3, 2012
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Abandoned
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Abstract
Techniques disclosed herein include systems and methods for identifying counterfeit gold jewelry and other counterfeit gold items. Techniques include determining—using a non-destructive mechanism—whether an item of interest (such as an article represented as true gold) is solid gold or a gold-plated object. Techniques include using an X-ray fluorescence (XRF) analyzer to differentiate true gold from gold plating. The XRF analyzer can distinguish between gold plating and bulk gold material by comparing a ratio of L-alpha and L-beta x-ray lines of gold. The analyzer measures a ratio of intensities of characteristic L-lines of gold using X-ray fluorescence (XRF) spectroscopy. When implemented using an XRF analyzer, the system nondestructively determines whether a test object is made of solid gold/gold alloy or has gold plating only.
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