Cloud Aerosol Spectrometer with Polarisation (CAS-POL)

The CAS-POL is part of an airborne multi-probe called CAPS (Cloud  Aerosol precipitation Spectrometer).

It has the following  measurement capabilities:


•  Measures large aerosol and cloud particles by forward scattered radiation over the size range 0.6 < Dp < 50 µm


•  It records particle by particle inter-arrival time for improved data quality control and to identify artefacts due to (airborne – ice shattering, and coincidence errors).


•  CAS-POL includes a particle backscatter polarisation detector which provides information on water-ice phase transitions.


It has previously been used in the AIDA cloud chamber (Kramer et al. 2012) and in the CERN CLOUD Chamber.

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