Characterization of an aerodynamic lens for transmitting particles greater than 1 micrometer in diameter into the Aerodyne aerosol mass spectrometer
2013 ◽
Vol 6
(11)
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pp. 3271-3280
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Keyword(s):
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.
2013 ◽
Vol 6
(3)
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pp. 5033-5063
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2015 ◽
Vol 15
(20)
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pp. 11807-11833
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2005 ◽
Vol 39
(8)
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pp. 760-770
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2015 ◽
Vol 32
(6)
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pp. 877-888
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Keyword(s):
2015 ◽
Vol 299
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pp. 156-174
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Keyword(s):
2007 ◽
Vol 41
(8)
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pp. 721-733
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2016 ◽
Vol 50
(8)
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pp. 790-801
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2008 ◽
Vol 42
(3)
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pp. 182-193
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Keyword(s):
2009 ◽
Vol 9
(11)
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pp. 3709-3720
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Keyword(s):