Abstract
The counting efficiencies of 2 different types of diethylene-glycol (DEG) based Condensation Particle Counters (CPCs) is described and discussed. The development of two laminar flow CPCs, sensitive in the size range below 3 nm is described. The two types used are a modified TSI 3776 laminar diffusion-type CPC operating with DEG instead of butanol (DEG-CPC) and a turbulent mixing Particle Size Magnifier (PSM) A09 from Airmodus. For each of the two types two different systems with slightly different settings have been investigated, respectively. The two laminar flow CPCs were operated at different temperature settings, where one of the mixing type systems was running at a fixed saturation ratio and therefore had a fixed cut-off diameter and the other one was opaerated in scanning mode. Various different test aerosols have been generated to obtain cut-off curves for all four different CPCs. The main focus was on measuring the counting efficiencies under well controlled laboratory conditions. Therefore a high resolution mass spectrometer was used in the setup as well.
| Original language | English |
|---|---|
| Title of host publication | Nucleation and atmospheric aerosols : 19th International Conference, Fort Collins, Colorado, USA, 23 - 28 June 2013 |
| Editors | Paul J. DeMott, Colin D. O'Dowd |
| Place of Publication | Melville, NY |
| Publisher | American Institute of Physics |
| Pages | 204-207 |
| Number of pages | 4 |
| Volume | 1527 |
| DOIs | |
| Publication status | Published - 2013 |
| Event | 19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA) - Fort Collins, Colorado State University, Fort Collins, Colombia Duration: 23 Jun 2013 → 28 Jun 2013 http://chem.atmos.colostate.edu/icnaa/ |
Publication series
| Series | AIP Conference Proceedings |
|---|---|
| ISSN | 0094-243X |
Conference
| Conference | 19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA) |
|---|---|
| Country/Territory | Colombia |
| City | Fort Collins |
| Period | 23/06/13 → 28/06/13 |
| Internet address |
Austrian Fields of Science 2012
- 105204 Climatology
- 105206 Meteorology
- 105904 Environmental research
Keywords
- CPC
- nano-aerosol
- calibration
- counting efficiencies
- NANOPARTICLES
- NUCLEATION
- AEROSOL
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