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Radiographic Contrast/Detail Phantom, Gammex 1151

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Product Specifications from Gammex Inc

This phantom is used to determine the threshold contrast characteristics and to monitor performance of a radiographic or fluroscopic system. The phantom is an aluminium plate with a matrix of holes. All of the holes in a given row have a constant depth. All of the holes in a given column have a constant diameter. From this a 10 point curve is constructed by observing the shallowest depth hole that can be seen for each hole diameter.