Neutral beam power supply timing interlocks

This paper describes interlocks and timing for GA Technologies Neutral Beam Power Systems (NBPS). Each NBPS requires timing signals which fire the Filament, Arc, Suppressor, Gas and Modulator/Regulator (M/R). The M/R output accelerates the primary hydrogen beam. Each of these timing signals is interlocked in a similar manner. This paper concentrates on the interlocking of the M/R as a representative example. A figure shows how the M/R timing channel is derived and conditioned by an enable and various interlocks to yield a signal which gates on the M/R