Data handling in the CHORUS emulsion experiment at CERN

The CHORUS experiment at CERN has been designed to search for nu /sub mu / to nu /sub tau / oscillations. Decays of short-lived particles are detected in 770 kg of nuclear emulsion used as neutrino target. The CERN and NIKHEF groups have jointly set up a microscope facility for automatic emulsion scanning. The data acquisition system uses state of the art techniques, both in hardware and in software. The present data processing rate is about 25 MB/s per scanning station and the expected volume of CHORUS emulsion data amounts to about 1 TB. (7 refs)