Articles | Volume 6, issue 11
https://doi.org/10.5194/amt-6-3271-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-6-3271-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
28 Nov 2013
Research article |
| 28 Nov 2013
Characterization of an aerodynamic lens for transmitting particles greater than 1 micrometer in diameter into the Aerodyne aerosol mass spectrometer
L. R. Williams
Aerodyne Research, Inc., Billerica, MA, USA
L. A. Gonzalez
CoolChip Technologies, Boston, MA, USA
J. Peck
Aerodyne Research, Inc., Billerica, MA, USA
D. Trimborn
AeroMegt, Hilden, Germany
J. McInnis
Department of Chemistry, Northwestern University, Evanston, IL, USA
M. R. Farrar
Cambridge Rindge and Latin High School, Cambridge, MA, USA
K. D. Moore
Space Dynamics Laboratory, Utah State University Research Foundation, North Logan, UT, USA
J. T. Jayne
Aerodyne Research, Inc., Billerica, MA, USA
W. A. Robinson
Aerodyne Research, Inc., Billerica, MA, USA
D. K. Lewis
Aerodyne Research, Inc., Billerica, MA, USA
Department of Chemistry, Connecticut College, New London, CT, USA
T. B. Onasch
Aerodyne Research, Inc., Billerica, MA, USA
M. R. Canagaratna
Aerodyne Research, Inc., Billerica, MA, USA
A. Trimborn
AeroMegt, Hilden, Germany
M. T. Timko
Aerodyne Research, Inc., Billerica, MA, USA
Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA
G. Magoon
Aerodyne Research, Inc., Billerica, MA, USA
R. Deng
Institute of Bioengineering and Nanotechnology, Singapore
D. Tang
Dynamic Engineering Inc., Houston, TX, USA
E. de la Rosa Blanco
Aerodyne Research, Inc., Billerica, MA, USA
A. S. H. Prévôt
Paul Scherrer Institute, Villigen, Switzerland
K. A. Smith
Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
D. R. Worsnop
Aerodyne Research, Inc., Billerica, MA, USA
Abstract. 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 vacuum aerodynamic 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.
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How to cite. Williams, L. R., Gonzalez, L. A., Peck, J., Trimborn, D., McInnis, J., Farrar, M. R., Moore, K. D., Jayne, J. T., Robinson, W. A., Lewis, D. K., Onasch, T. B., Canagaratna, M. R., Trimborn, A., Timko, M. T., Magoon, G., Deng, R., Tang, D., de la Rosa Blanco, E., Prévôt, A. S. H., Smith, K. A., and Worsnop, D. R.: Characterization of an aerodynamic lens for transmitting particles greater than 1 micrometer in diameter into the Aerodyne aerosol mass spectrometer, Atmos. Meas. Tech., 6, 3271–3280, https://doi.org/10.5194/amt-6-3271-2013, 2013.