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Particle capture device

United States Patent

February 23, 2016
View the Complete Patent at the US Patent & Trademark Office
In example embodiments, particle collection efficiency in aerosol analyzers and other particle measuring instruments is improved by a particle capture device that employs multiple collisions to decrease momentum of particles until the particles are collected (e.g., vaporized or come to rest). The particle collection device includes an aperture through which a focused particle beam enters. A collection enclosure is coupled to the aperture and has one or more internal surfaces against which particles of the focused beam collide. One or more features are employed in the collection enclosure to promote particles to collide multiple times within the enclosure, and thereby be vaporized or come to rest, rather than escape through the aperture.
Jayne; John T. (Littleton, MA), Worsnop; Douglas R. (Lexington, MA)
Aerodyne Research, Inc. (Billerica, MA)
13/ 961,469
August 7, 2013
GOVERNMENT LICENSE RIGHTS This invention was made with government support under Contract No. DE-SC0001673awarded by the Department of Energy. The Government has certain rights in this invention.