The Johns Hopkins University Applied Physics Laboratory, in Laurel, Md., has launched a Web site to spark collaboration among users, designers and manufacturers of high-tech sensors, at www.ngsi.org   . . .   ImageGuide Inc. announced it has opened new headquarters in Baltimore. ImageGuide is working with GE Medical Systems to develop image-guided robot-assisted surgery platforms.

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There are 755 suppliers of Sensors & Detectors in the Photonics Marketplace.

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