Hi, Yes, I believe that is the case. Several years ago, Scotia did a modest publicity campaign to advertise their "black box"
technology.
They invested in XRF technology (the cheapest unit is a hand held unit at U$45,000 currently) so, you know they spent more than that for a "desktop" scanner for their coin testing XRF unit. It instantly analyzes via XRay, the metallic content/purity of any metallic item placed within its perameter of its scanner.
I hope this helps. If I missed what you were asking, please let me know, and I'll try again. In the meantime, I'll see if I can locate the publicity photo of the blackbox in the newswire report a few years back, and come back and post the Scotia article.
I am more familiar with the XRF technology about the size of an integrated, floor model, office copier size units used in a particular local mining outfit here in Oregon, in their met. lab. The photo below is from said limestone mining company's lab, Ashgrove in Durkee, OR.
The left "disc image" in both front and back of a sample prepared for this particular XRF machine, is the mineral sample of their nearly pure limestone they mine.
I'll provide dimensions as well as front/back views, next to a "Kennedy 50c Piece" for reference.
36mm diameter, 3mm thick, 7.6 grams gross weight.
The sample is a highly compressed limestone sample crammed into the metallic disk holder before being placed
on the XRF's surface for scanning.
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