Doubler-tevatron μp quench protection system

1014 superconducting magnets, distributed around a four mile ring and storing a total energy of 1/3 GJ, are to be protected by six microprocessor monitors. During a quench, the monitors initiate global shutdown and selectively activate individual protection heaters. During normal operation, they actively test major protection components for proper operation and aid in the cooldown and warmup process. The high priority safety scan assembly language programs are time sliced with the low priority BASIC language operator and central computer inferface programs. The monitors themselves are continuously checked for proper operation by "heartbeat" detectors.