Aerosol Research Facility

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Description

The Aerosol Research Facility develops methods for the detection and characterization of biologic aerosols and other atmospheric particles such as dust, haze, and battlefield obscurants. It combines the capability to generate, concentrate, dilute, monitor, and study the behavior of aerosol-environment interactions in time and space through the use of specialized, scientific instrumentation. This instrumentation includes a multi-wavelength photo-acoustic system; a polarimetric imager; a set of lasers that can illuminate particles at a variety of wavelengths from 220 nm to 10 ┬Ám; an electron multiplying charge-coupled device (EMCCD), intensified charge-coupled devices (ICCDs), and photomultiplier arrays for measuring fluorescence and Raman spectra; a nephelometer; aerosol particle counters and sizers; equipment for gravimetric analysis of atmospheric aerosols; and an aerosol-particle fluorescence spectrometer system for measuring the fluorescence spectra of individual particles sampled from air at rates up to 100 particles per second. This equipment provides the capability to measure physical, chemical, and biological characteristics; optical cross sections; and spectral "signatures" of particles.

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