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Design and Performance Assessment of a Stable Astigmatic Herriott Cell for Trace Gas Measurements on Airborne PlatformsThe present paper discusses a new, more stable, astigmatic Herriott cell employing carbon fiber stabilizing rods. Laboratory tests using a near-IR absorption feature of CO at 1564.168-nm revealed a factor of two improvement in measurement stability compared with the present commercial design when the sampling pressure was changed by +/-2 Torr around 50 Torr. This new cell should significantly enhance our efforts to measure trace gases employing pathlengths of 100 to 200-meters on airborne platforms with minimum detectable line center absorbances of less than 10(exp -6).
Document ID
20050041776
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Dyroff, Christoph
(National Center for Atmospheric Research Boulder, CO, United States)
Fried, Alan
(National Center for Atmospheric Research Boulder, CO, United States)
Richter, Dirk
(National Center for Atmospheric Research Boulder, CO, United States)
Walega, James G.
(National Center for Atmospheric Research Boulder, CO, United States)
Zahniser, Mark S.
(Aerodyne Research, Inc. Billerica, MA, United States)
McManus, J. Barry
(Aerodyne Research, Inc. Billerica, MA, United States)
Date Acquired
August 22, 2013
Publication Date
January 1, 2005
Subject Category
Chemistry And Materials (General)
Funding Number(s)
CONTRACT_GRANT: NCC1-00419
Distribution Limits
Public
Copyright
Other

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