R. Winn HardinWASHINGTON -- A combination of military and commercial technology has created a practical midwave IR spectral imaging microscope. The system developed by researchers from the National Institute of Standards and Technology and the National Institutes of Health uses a 256 3 256-pixel broadband IR mercury-cadmium-telluride focal plane array developed for the US Ballistic Missile Defense Organization; an IR microscope and Michelson step-scan interferometer from Bio-Rad Laboratories Inc. of Cambridge, Mass.; and a frame grabber from Dipix Technologies Inc. of Ottawa. 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