A method and device for automatic scanning of nuclear emulsions

The proposed method of automatic scanning of emulsions exposed to a beam of charged particles allows rapid automatic location of events. The emuision is scanned by an optical-mechanical scanning unit. The information from several consecutive layers is accumulated in an analog memory device, and the accumulated information is processed by a logical anaiysis system. When the criterion used to define an event is satisfied, the logical analysis system gives a signal and coordinates of the event are recorded automatically. Calculations show that scanning speed couid reach at least 50 m of primary track per hour and that an angular resolution of about 0.25 un. Concent 85% may be reached. (A.G.W.)