Prototyping control and data acquisition for the ITER Neutral Beam Test Facility
IEEE Transactions on Nuclear Science(2013)
Abstract
The ITER Neutral Beam Test Facility will be the project's R&D facility for heating neutral beam injectors (HNB) for fusion research operating with H/D negative ions. Its mission is to develop technology to build the HNB prototype injector meeting the stringent HNB requirements (16.5 MW injection power, -1 MVe acceleration energy, 40 A ion current and one hour continuous operation). Two test-beds will be built in sequence in the facility: first SPIDER, the ion source test-bed, to optimize the negative ion source performance, second MITICA, the actual prototype injector, to optimize ion beam acceleration and neutralization. The SPIDER control and data acquisition system is under design. To validate the main architectural choices, a system prototype has been assembled and performance tests have been executed to assess the prototype's capability to meet the control and data acquisition system requirements. The prototype is based on open-source software frameworks running under Linux. EPICS is the slow control engine, MDSplus is the data handler and MARTe is the fast control manager. The prototype addresses low and high-frequency data acquisition, 10 kS/s and 10 MS/s respectively, camera image acquisition, data archiving, data streaming, data retrieval and visualization, real time fast control with 100 μs control cycle and supervisory control. The paper shows how the proposed prototype architecture can address the most critical requirements of SPIDER control.
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Key words
public domain software,fusion research,actual prototype injector,research and development,data handler,marte,physical instrumentation control,data streaming,negative ions,tokamak devices,mitica injector,open-source software frameworks,spider control,real time fast control,control engine,ion beam neutralization,plasma sources,neutral beam test facility,ion beam acceleration,fusion reactor instrumentation,prototype control,high-frequency data acquisition,information retrieval,plasma toroidal confinement,camera image acquisition,prototypes,power 16.5 mw,prototyping control,hnb prototype injector,neutral beam injector,h negative ions,ion source test-bed,ion current,prototype architecture,data acquisition,mdsplus,d negative ions,linux,r and d facility,data archiving,data visualisation,plasma beam injection heating,iter neutral beam test facility,cameras,iter,neutral beam injection heating,negative ion source performance,data retrieval,spider ion source testbed,data handling,data visualization,linux. epics,mitica,ion sources,hnb prototype injector meeting,data acquisition system,r&d facility,current 40 a,heating neutral beam injectors,plasma transport processes,structural beams,memory,servers,synchronization
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