Soot Particle Aerosol Mass Spectrometer: Development, Validation , and Initial Application. T. B. Onasch,A . Trimborn,E . C. Fortner,J . T. Jayne,G . L. Kok,L . R. Williams,P . Davidovits , and D. R. Worsnop. By Gustavo M. Riggio 05/12/2014. Introduction.
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T. B. Onasch,A. Trimborn,E. C. Fortner,J. T. Jayne,G. L. Kok,L. R. Williams,P. Davidovits, and D. R. Worsnop
By Gustavo M. Riggio
Aerosol Mass Spectrometer (AMS)
Single Particle Soot Photometer (SP2)
TOF Mass Spectrometer
Animation of the Aerodyne AMS. Credit: Matt Thyson (Lexington, Massachusetts)
(CCD camera), and power.
cause particles to miss the laser.
What happens if we turn the laser on and off while the tungsten vaporizer is on? What do we measure?
AMS Collection Efficiency Issues. http://cires.colorado.edu/jimenez-group/UsrMtgs/UsersMtg9/08_Onash_CE.pdf
10-12 = units conversion
Na = Avogadro’s number
Mass spectrum of denuded ethylene flame soot.
present with laser ON and
distribution as function of
remains the same.
by nonrefractory BC
ambient than lab.
exhaust and lubrication