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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