Abstract
During an international workshop at the Institute for Experimental Physics of the University of Vienna, Austria, which was coordinated within the Committee on Nucleation and Atmospheric Aerosols (IAMAS-IUGG), 10 instruments for aerosol number concentration measurement were studied, covering a wide range of methods based on various different measuring principles. In order to investigate the detection limits of the instruments considered with respect to particle size, simultaneous number concentration measurements were performed for monodispersed aerosols with particle sizes ranging from 1.5 to 50 nm diameter and various compositions. The instruments considered show quite different response characteristics, apparently related to the different vapors used in the various counters to enlarge the particles to an optically detectable size. A strong dependence of the 50% cutoff diameter on the particle composition in correlation with the type of vapor used in the specific instrument was found. An enhanced detection efficiency for ultrafine hygroscopic sodium chloride aerosols was observed with water operated systems, an analogous trend was found for n-butanol operated systems with Non hygroscopic silver and tungsten oxide particles. © 2002 Elsevier Science B.V. All rights reserved.
Recommended Citation
A. Ankilov and A. Baklanov and M. Colhoun and K. H. Enderle and J. Gras and Y. Julanov and D. Kaller and A. Lindner and A. A. Lushnikov and R. Mavliev and F. McGovern and T. C. O'Connor and J. Podzimek and O. Preining, "Particle Size Dependent Response of Aerosol Counters," Atmospheric Research, vol. 62, no. 3 thru 4, pp. 209 - 237, Elsevier, Jan 2002.
The definitive version is available at https://doi.org/10.1016/S0169-8095(02)00011-X
Department(s)
Physics
Keywords and Phrases
Condensation nuclei counter; Diffusion battery; Electro mobility spectrometer; Intercomparison study; Optical particle counter; Particle detection efficiency
International Standard Serial Number (ISSN)
0169-8095
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Elsevier, All rights reserved.
Publication Date
01 Jan 2002
Comments
Universität Wien, Grant None