Hi everyone,
Not really a Rietveld question but I thought this group would be good to askĀ…

As a mineralogist we have used Gandolfi cameras in the past to identify
small amounts of unknown mineral mixtures. The camera mechanism randomizes
the orientation of the small single crystal or crystal aggregate to
generate a debye-scherrer pattern. (usually in a 57mm camera) this was a
low tech inexpensive method that would run off a normal lab Xray source.
Film is no longer available.

I thought about adapting a flat plate detector and the mechanism I have
from a gandolfi camera to be able to do these exposures.
With the market now for digital Xray detectors for health and industrial
testing I thought maybe the cost of a small 5cm x 5cm detector might make
this possible. The problem as I see it is that these detectors take
advantage of W xrays and are not sensitive to the softer Cu or Mo Xrays. I
see some have Be coverings for when they are doing real time radiographs.

Does anyone have any advice or details on sourcing inexpensive detectors
such as this. Only rough estimates intensities are required as most of the
information that is required is position of the lines. I know there are
more expensive microdiffractometer systems that will do this but am
looking for low cost solution so that we can study a large number of
fragments in a routine fashion.

Thanks very much in advance for any suggestions
~Ron


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