Articles | Volume 18, issue 20
https://doi.org/10.5194/amt-18-5717-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-5717-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Oct 2025
Research article |
| 22 Oct 2025
| 22 Oct 2025
Design and performance of the Cluster Ion Counter (CIC)
Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, Estonia
Airel OÜ, Observatooriumi 5, 61602 Tõravere, Estonia
Rima Balbaaki
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Hanna Elina Manninen
CERN, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Paap Koemets
Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, Estonia
Airel OÜ, Observatooriumi 5, 61602 Tõravere, Estonia
Eva Sommer
CERN, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland
Faculty of Physics, University of Vienna, 1090 Vienna, Austria
Birte Rörup
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Yusheng Wu
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Joao Almeida
CERN, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland
Faculty of Sciences of the University of Lisbon, 1749-016 Lisbon, Portugal
Sebastian Ehrhart
Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany
Stefan Karl Weber
CERN, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland
Joschka Pfeifer
CERN, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland
Juha Kangasluoma
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Markku Kulmala
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Jasper Kirkby
CERN, European Organization for Nuclear Research, 1211 Geneva 23, Switzerland
Data sets
Datasets and code for "Design and performance of the Cluster Ion Counter (CIC)" Sander Mirme et al. https://doi.org/10.5281/zenodo.17357061
Short summary
The Cluster Ion Counter (CIC, Airel OÜ) is a novel instrument that simultaneously measures positive and negative ion concentrations below 5 nm. It provides high detection efficiency, low noise, a rapid time response, and excellent reliability, confirmed in lab experiments and at the CERN CLOUD chamber. Its design enables precise, robust long-term measurements, facilitating versatile applications in diverse environments, from laboratory settings to field and potential airborne research.
The Cluster Ion Counter (CIC, Airel OÜ) is a novel instrument that simultaneously measures...
