Imaging performance of mercuric iodide polycrystalline films

Mercuric iodide (HgI/sub 2/) polycrystalline films have great potential as direct-conversion X-ray detectors for digital X-ray imaging. We have optimized a sublimation-based film growth process to create uniform films up to 6.5 /spl times/ 6.5 cm/sup 2/ with very small (<25 /spl mu/m) grain sizes on the readout side of the film. The growth techniques used… (More)