HR: 11:35h
AN: A52C-05    [Abstracts]
TI: Development of a Fast Time-Tagged Aerosol Collector (Fast TRAC)
AU: * Yu, X
EM: xiaoying.yu@pnl.gov
AF: Pacific Northwest National Laboratory, Division of Atmospheric Science & Global Change P.O.Box 999, MSIN K9-30 Richland, WA 99352, Richland, WA 99352, United States
AU: Hashim, A M
EM: hashim.ali@pnl.gov
AF: Pacific Northwest National Laboratory, Division of Chemical & Materials Sciences P.O.Box 999, MSIN: K8-88 Richland, WA 99352, Richland, WA 99352, United States
AU: Cowin, J P
EM: jp.cowin@pnl.gov
AF: Pacific Northwest National Laboratory, Division of Chemical & Materials Sciences P.O.Box 999, MSIN: K8-88 Richland, WA 99352, Richland, WA 99352, United States
AB: The Time-Resolved Aerosol Collector (TRAC) was developed for sampling atmospheric aerosols in 2000, and is small and very convenient for collecting as many as 500 field samples with times per sample from about 1 minute to hours. It has been successfully used to collect field samples for subsequent laboratory characterization such as hygroscopicity, morphology, and composition, including single particle methods. We will present the development of a "Fast Time-Resolved Aerosol Collector", or Fast-TRAC, that is particularly well suited for airplane studies of cloud microstructures. The Fast TRAC tags each particle with its individual collection time, within milliseconds, for tens of thousands of particles or more. In addition, near real-time particle size and number information will be provided. The feasibility of the Fast TRAC will be demonstrated and evidence of its performance will be provided.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0365 Troposphere: composition and chemistry
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting