Articles | Volume 11, issue 5
Atmos. Meas. Tech., 11, 3007–3020, 2018
https://doi.org/10.5194/amt-11-3007-2018
Atmos. Meas. Tech., 11, 3007–3020, 2018
https://doi.org/10.5194/amt-11-3007-2018

Research article 22 May 2018

Research article | 22 May 2018

Use of the Single Particle Soot Photometer (SP2) as a pre-filter for ice nucleation measurements: effect of particle mixing state and determination of SP2 conditions to fully vaporize refractory black carbon

Gregory P. Schill et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Gregory Schill on behalf of the Authors (05 Apr 2018)  Author's response    Manuscript
ED: Publish as is (07 Apr 2018) by Paolo Laj
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Short summary
Few techniques can measure the contribution of refractory black carbon (rBC) to ice-nucleating particle (INP) concentrations. One technique uses the single particle soot photometer (SP2) as a pre-filter to an online INP counter to selectively remove rBC particles from an aerosol stream. In this work, we expand upon this technique by determining the effect of the SP2 laser on INP proxies mixed with rBC. We also bounded the SP2 conditions under which rBC is fully vaporized in the SP2 exhaust.