Data recording system for proportional chambers

A recording system for data received from proportional chambers, which is based on the K405xP1 hybrid integrated circuits is described. Flowsheet of recording system and block-diagrams of the 256 wire module and receiving block are presented. It includes 256 wire recording modules, successive branch of 26 data buses (telephone or ribbon cables) connecting the modules, a receiving block and a register for chamber selection. Each recording module contains 16 plates (16 complete recording channels on each plate, i.e. eight K405xP1 microcircuits), coding and buffer plates. The electronics is mounted on chambers. Data are received in the CAMAC receiving block through the successive branch. Binary numbers of operated wires are communicated to the buffer storage block at 30 MHZ and through the channel of computer direct access in the stop-mode of block communication