Computer assisted operation of neutral beam injectors

The anticipated use of multiple high power neutral beam injectors in pending and future experiments has led to the examination of suitable automatic and semi-automatic control systems for the conditioning and operational modes of source operation. The operation of present multiple injector systems has been analyzed to determine the control strategy used in manual operations and to determine the actual data requirements needed for computerized control. A source model and appropriate control algorithms have been developed to implement computer assisted control of the sources. Particular attention is given to providing proper suspension of operation in the face of abnormal operation of the source, the data acquisition system, the digital control system or the output control effectors. The control system is configured for stand alone use or for interconnection in a larger experiment control system