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Characterization of an Aerodynamic Lens for Transmitting Particles > 1 Micrometer in Diameter Into the Aerodyne Aerosol Mass Spectrometer : Volume 6, Issue 3 (07/06/2013)

By Williams, L. R.

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Book Id: WPLBN0003999885
Format Type: PDF Article :
File Size: Pages 31
Reproduction Date: 2015

Title: Characterization of an Aerodynamic Lens for Transmitting Particles > 1 Micrometer in Diameter Into the Aerodyne Aerosol Mass Spectrometer : Volume 6, Issue 3 (07/06/2013)  
Author: Williams, L. R.
Volume: Vol. 6, Issue 3
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Timko, M. T., H. Prévô, A. S., Peck, J., Smith, K. A., Deng, R., Trimborn, D.,...Gonzalez, L. A. (2013). Characterization of an Aerodynamic Lens for Transmitting Particles > 1 Micrometer in Diameter Into the Aerodyne Aerosol Mass Spectrometer : Volume 6, Issue 3 (07/06/2013). Retrieved from http://www.ebooklibrary.org/


Description
Description: Aerodyne Research, Inc., Billerica, MA, USA. We have designed and characterized a new inlet and aerodynamic lens for the Aerodyne aerosol mass spectrometer (AMS) that transmits particles between 80 nm and more than 3 μm in diameter. The design of the inlet and lens was optimized with computational fluid dynamics (CFD) modeling of particle trajectories. Major changes include a redesigned critical orifice holder and valve assembly, addition of a relaxation chamber behind the critical orifice, and a higher lens operating pressure. The transmission efficiency of the new inlet and lens was characterized experimentally with size-selected particles. Experimental measurements are in good agreement with the calculated transmission efficiency.

Summary
Characterization of an aerodynamic lens for transmitting particles > 1 micrometer in diameter into the Aerodyne aerosol mass spectrometer

Excerpt
Allan, J. D., Coe, H., Bower, K. N., Williams, P. I., Gallagher, M. W., Alfarra, M. R., Jiménez, J. L., Worsnop, D. R., Jayne, J. T., Canagaratna, M. R., Nemitz, E., and McDonald, A. G.: Quantitative sampling using an Aerodyne aerosol mass spectrometer, 1. Techniques of data interpretation and error analysis, J. Geophys. Res., 108, 4090, doi:10.1029/2002JD002358, 2003.; ANSYS Fluent: available at: http://www.ansys.com/ (last access: 20 February 2013), 2012.; Canagaratna, M. R., Jayne, J. T., Jiménez, J. L., Allan, J. D., Alfarra, M. R., Zhang, Q., Onasch, T. B., Drewnick, F., Coe, H., Middlebrook, A., Delia, A., Williams, L. R., Trimborn, A. M., Northway, M. J., DeCarlo, P. F., Kolb, C. E., Davidovits, P., and Worsnop, D. R.: Chemical and microphysical characterization of ambient aerosols with the Aerodyne Aerosol Mass Spectrometer, Mass. Spectrom. Rev., 26, 185–222, 2007.; Cross, E. S., Slowik, J. G., Davidovits, P., Allan, J. D., Worsnop, D. R., Jayne, J. T., Lewis, D. K., Canagaratna, M., and Onasch, T. B.: Laboratory and ambient particle density determinations using light scattering in conjunction with aerosol mass spectrometry, Aerosol Sci. Tech., 41, 343–359, doi:10.1080/02786820701199736, 2007.; DeCarlo, P. F., Slowik, J. G., Worsnop, D. R., Davidovits, P., and Jiménez, J. L.: Particle morphology and density characterization by combined mobility and aerodynamic diameter measurements, Part 1: Theory, Aerosol Sci. Tech., 38, 1185–1205, doi:10.1080/027868290903907, 2004.; DeCarlo, P. F., Kimmel, J. R., Trimborn, A., Northway, M. J., Jayne, J. T., Aiken, A. C., Gonin, M., Fuhrer, K., Horvath, T., Docherty, K., Worsnop, D. R., and Jiménez, J. L.: A field-deployable high-resolution time-of-flight aerosol mass spectrometer, Anal. Chem., 78, 8281–8289, 2006.; Huffman, J. A., Jayne, J. T., Drewnick, F., Aiken, A. C., Onasch, T., Worsnop, D. R., and Jiménez, J. L.: Design, modeling, optimization, and experimental tests of a particle beam width probe for the Aerodyne aerosol mass spectrometer, Aerosol Sci. Tech., 39, 1143–1163, doi:10.1080/02786820500423782, 2005.; Jayne, J. T., Leard, D. C., Zhang, X., Davidovits, P., Smith, K. A., Kolb, C. E., and Worsnop, D. R.: Development of an aerosol mass spectrometer for size and composition analysis of submicron particles, Aerosol Sci. Tech., 33, 49–70, 2000.; Jiménez, J. L., Jayne, J. T., Shi, Q., Kolb, C. E., Worsnop, D. R., Yourshaw, I., Seinfeld, J. H.

 

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