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iles Owen, a metrologist with the Army Primary Standards Laboratory, counts aerosol particles deposited onto a silicon wafer in the APSL clean room. The measurement is part of a research project to calibrate particle counters using large aerosol particles in the size range of bacteria, with application to environmental monitors and biological defense sensors.
200128-A-HD610-061.JPG Photo By: Miles Brown

REDSTONE ARSENAL, Ala. - Miles Owen, a metrologist with the Army Primary Standards Laboratory, counts aerosol particles deposited onto a silicon wafer in the APSL clean room. The measurement is part of a research project to calibrate particle counters using large aerosol particles in the size range of bacteria, with application to environmental monitors and biological defense sensors.


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