Abstract:
A logic system for processing data derived from a multiplicity of individual detectors for the purpose of detecting the presence of data generated by at least one of said detectors and for the purpose of identifying the detectors which have generated data. The disclosed logic system is particularly suited for use with nuclear detectors designed to detect the existence of particles with very short life times which could be of the order of a nanosecond. The disclosed embodiment comprises a first pyramidal multilevel matrix of OR circuits and a second pyramidal multilevel matrix of switching circuits, with the two matrices being symmetrical, and with the first matrix serving primarily to detect the presence of data generated by a detector and the second matrix serving primarily to identify the detectors which have generated data.
Abstract:
A spark discharge chamber for detailed study of gamma and beta radiation comprising a plane cathode, a lattice-shaped auxiliary electrode and an anode, said cathode being divided into at least two cathode sections which are electrically insulatable from one another.