NASA NTRS · 19760000059
Atmospheric particle sampler
Abstract
Positive and/or negative pressure is used to trap airborne particles against a filter. Positive pressure is provided by low molecular weight gas (He or H) to achieve high particle velocity and high capture percentage. Trapped particles are examined under electron microscope.
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Miller, C. G., Stephens, J. B.. 1976-03-01. Atmospheric particle sampler. https://ntrs.nasa.gov/citations/19760000059
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