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Capabilities / Instruments

OPC

Optical Particle Counter

Baseline Instrument

The optical particle counter (OPC) is a particle size spectrometer that provides a measure of the particle optical diameter based on scattered light intensity. The OPC provides the number size distribution for particles with optical diameters from 0.25 to 35 micrometers.

Primary Measurements

Browse Data

Contact

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Ashish Singh
Lead Mentor Brookhaven National Laboratory

References

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Hiranuma et al. Examining the Ice-Nucleating Particles from the North Slope of Alaska (ExINP-NSA) Final Campaign Report. 2025.

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Resources

Atmospheric Radiation Measurement (ARM) | Reviewed March 2025