Abstract
The negative ion source based neutral beam injector (NNBI) will play an important role in Comprehensive Research fAcility for Fusion Technology (CRAFT). In order to explore the physics and engineering issues for NNBI, the RF negative ion based test facility has been tested with cesium seeding, negative ion production, and extraction at Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). According to the architecture of ITER CODAC (Control, Data Access and Communication) system and the experimental requirements of negative ion test facility, the control system for negative ion source based neutral beam injector prototype has been developed. It fulfills the physics experimental requirements, and what's more, it accumulates design experience for control system of CRAFT NNBI. In this paper, the control and data acquisition system are described, especially the real-time control, plant units interface and central control program. In the data acquisition section, the requirements are presented not only for the system, but also an improvement plan is given. Meanwhile, the interlock system is also present, including system architecture design and classification of interlock signals.
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