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Bogdan Magilich, chairman of Hienergy Microdevices, poses with his Microsenzor device for detecting anthrax, explosives, drugs and other organic contraband in sealed containers, at a research facility in Irvine, Calif., Tuesday, Nov. 6, 2001. An emitter, containing a low-activity source of radiation, right-front, sends neutrons into the suspect package, right. Gamma rays bounce off organic substances at right angles into the detector, left, where they are analyzed and the results displayed on the handheld computer at lower left. In the wake of the Sept. 11 attacks, U.S. agencies, especially airports, are intensely interested in the technology developed by Magilich, a 62-year-old Serbian-American. (AP Photo/Reed Saxon )