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neutral-beams

Paper Title Other Keywords Page
TPPB28 Preliminary Design Concepts for the Control and Data Acquisition Systems of the ITER Neutral Beam Injector and Associated Test Facility ion, controls, site, ion-source 220
 
  • G. Manduchi, A. Luchetta
    Consorzio RFX, Euratom ENEA Association, Padova
  ITER is a joint international research and development project aiming to demonstrate the scientific and technical feasibility of fusion power. The ITER Neutral Beam Injector (NBI, negative D2 ion source, 1MV acceleration voltage, 40A ion current, 16.5MW beam power, 1 hour continuous operation) is a major component of ITER and will be supported by a dedicated test facility (NBTF). The NBI and the NBTF are being designed with the goal to have one injector fully operational on the ITER device in 2016. The two items need separate, but closely interacting, control and data acquisition systems (CDAs). The NBI CDA system will manage the NBI device and will be installed at the ITER site; the NBTF CDA system will manage the test facility and in particular will enable extensive scientific exploitation of the NBI before its final installation at the ITER site. The paper reports on the design activity for both CDA systems, including the definition of the system requirements, the functional system structure, and the preliminary system architecture.  
 
WPPA22 Real-Time Measurement and Control at JET – Status 2007 controls, plasma, diagnostics, electron 362
 
  • T. Budd, F. Sartori, R. C. Felton
    EFDA-JET, Abingdon, Oxon
  The Joint European Tokamak (JET) is a large machine for experiments on fusion plasmas. Many of the experiments use real-time measurements and controls to establish and/or maintain specific plasma conditions. Each Instrument (Diagnostic or Heating/Fueling/Magnet) is connected to a network. The number of systems has now grown to over thirty, and new systems are being planned for the future. Since some of the systems are used to control critical parameters of the JET plasma, we are improving the availability, reliability, and maintainability of the facility. We must ensure that systems check their message structures against a central Data Dictionary at build-time and run-time and secondly that the systems check their input data streams are alive before, during, and after a JET pulse. Thirdly, a test data generator facility is being added so that systems can be validated in situ. Finally, we are developing high-level control configuration tools. From all of these, we identify some general principles that are applicable to the next-generation machines.