System for Recording Signal Amplitudes and Waveforms from a Large-Area Scintillation Counter Hodoscope

A low-speed modification of the chronotron has been adapted to recording data from an array of 144 photomultiplier tubes. By noting the kinds of co. nbinations of signals expected for the various physical events of interest a relatively simple pulse position code is devised to display the data. This display gives addresses and amplitudes of signals for a composite event and in addition permits us to determine whether the waveforms are bona fide in nature or spurious. Some degree of redundancy may also be incorporated into the system.