Digitizing and memory system for wire spark chambers

A new digitizing and memory system for use with magnetostrictive wire spark chambers is described. Features include a 1000 spark per event 20 MHz shift register memory and a live CRT display of spark positions. Our design experience with state-of-the-art MOS shift registers and Schottky TTL circuits is presented, together with comments on our experience with the working system. This principle has applications in many other situations requiring the digitization and storage of the arrival times of a burst of pulses.