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Silja Häme
Institute for Atmospheric and Earth System Research (INAR) / Physics
P.O. Box 64
FI-00014 University of Helsinki
Finland
Cluster Calibration Center (CCC)
CCC is hosted by Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, Finland. The CCC facilities are located in Helsinki, Kumpula campus. INAR has over 30 years of experience of developing aerosol instrumentation, especially for sub 10 nm aerosol particle detection.
CCC is leading, managing and coordinating activities on sub-10 nm particle measurements (particle number concentration and size distribution). CCC provides operation support to ACTRIS National Facilities and services to other users in sub-10 nm particle measurements. The instruments we support/service include ion spectrometer, NAIS; particle size magnifier, PSM (nano-condensation Nucleus counter, nCNC consisting of a PSM and a CPC) and nano-mobility particle size spectrometers, nano-MPSS (optimized for 10 nm size distribution measurements).
CCC provides training and consultancy on sub-10 nm measurements (e.g., training as part of our intercomparison workshops, lectures), measurement and data procedures and tools (e.g., SOPs for nanoparticle measurement instruments and QA/QC tools for sub-10 nm measurement data) and measurement monitoring (e.g., instrument intercomparison workshops for nanoparticle instruments, data quality evaluation). CCC has also an active role in nanoparticle measurement method and instrument development.
CCC is currently being set-up and will be fully operational by 2026.
Visit the INAR website: https://www.helsinki.fi/en/inar
Visit the ACTRIS Finland website: https://www.helsinki.fi/en/infrastructures/actris-finland
Workshop Schedule 2025
Workshops planned for 2026
- Spring 2026 (tbd): Calibration and intercomparison workshop for nano particle size spectrometers (nano-MPSS, optimized <10nm)
- Fall 2026 (tbd): Calibration and intercomparison workshop for ion spectrometers (NAIS)
Workshop Activities
NAIS (Neutral cluster and Air Ion Spectrometer)
CCC provides operation support for NAIS operated at ACTRIS National Facilities. CCC organizes regularly NAIS intercomparison workshops incl. instrument calibration/validation and hands-on training.
Silja HämeJanne LampilahtiContact: actris-ccc[at]helsinki.fi
PSM (Particle Size Magnifier)
CCC provides operation support for PSM operated at ACTRIS National Facilities. CCC organizes regularly nanoparticle instrument intercomparison workshops incl. instrument calibration/validation and hands-on training.Silja HämeJanne Lampilahti
Contact: actris-ccc[at]helsinki.fi
Nano-MPSS (nano-Mobility Particle Size Spectrometer)
CCC provides operation support for nano-MPSS, optimized for <10 nm particles, operated at ACTRIS National Facilities. CCC organizes regularly nanoparticle instrument intercomparison workshops incl. instrument calibration/validation and hands-on training.
Note: nano-MPSS as part of dual-MPSS systems (instruments that are used both for >10 nm and <10 nm particle number size distribution measurements with lower range typically >3nm) shall be calibrated at WCCAP (TROPOS).Silja HämeJanne LampilahtiContact: actris-ccc[at]helsinki.fi
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