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Particle capture device

Patent ·
OSTI ID:1239680
;
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.
Research Organization:
Aerodyne Research, Inc., Billerica, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0001673
Assignee:
Aerodyne Research, Inc. (Billerica, MA)
Patent Number(s):
9,267,869
Application Number:
13/961,469
OSTI ID:
1239680
Country of Publication:
United States
Language:
English

References (4)

An In-Situ Instrument for Speciated Organic Composition of Atmospheric Aerosols: T hermal Desorption A erosol G C/MS-FID (TAG) journal June 2006
Evaluation of a New Particle Trap in a Laser Desorption Mass Spectrometer for Online Measurement of Aerosol Composition journal April 2012
Development of an Aerosol Mass Spectrometer for Size and Composition Analysis of Submicron Particles journal July 2000
Evaluation of Composition-Dependent Collection Efficiencies for the Aerodyne Aerosol Mass Spectrometer using Field Data journal March 2012

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