Signedon front: ORTEC
FunctionWhen a high energy beam of particles collided with a target, it triggered thousands of events and scattered particles and photons. These were picked up by detectors, which in turn sent electrical signals (or pulses) to a wide assortment of logical devices for analysis. Logic instruments included count-registers (or scalers), which counted up the events; pulse height analyzers (PHA), which selected and sorted pulses that fit within certain sized windows; and coincidence counters, which recorded simultaneous events.
This device was used to count the number of electronic events happening during a physics experiment. Such a counter generally increments an internal register each time a voltage pulse is detected at the counter input, which is then displayed as a numerical value.