MAST data acquisition system

The data acquisition system of the Mega-Amp Spherical Tokamak (MAST) presently collects up to 400 MB of data in about 3000 data items per shot, and subsequent fast growth is expected. Since the start of MAST operations (in 1999) the system has changed dramatically. Though we continue to use legacy C...

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Bibliographic Details
Published in:Fusion engineering and design 2006-07, Vol.81 (15), p.1789-1793
Main Authors: Shibaev, S., Counsell, G., Cunningham, G., Manhood, S.J., Thomas-Davies, N., Waterhouse, J.
Format: Article
Language:English
Subjects:
Applied sciences
Control
Controled nuclear fusion plants
Data acquisition
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Installations for energy generation and conversion: thermal and electrical energy
MAST tokamak
Network
PCI
PXI
Remote participation
VME
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Summary:The data acquisition system of the Mega-Amp Spherical Tokamak (MAST) presently collects up to 400 MB of data in about 3000 data items per shot, and subsequent fast growth is expected. Since the start of MAST operations (in 1999) the system has changed dramatically. Though we continue to use legacy CAMAC hardware, newer VME, PCI, and PXI based sub-systems collect most of the data now. All legacy software has been redesigned and new software has been developed. Last year a major system improvement was made—replacement of the message distribution system. The new message system provides easy connection of any sub-system independently of its platform and serves as a framework for many new applications. A new data acquisition controller provides full control of common sub-systems, central error logging, and data acquisition alarms for the MAST plant. A number of new sub-systems using Linux and Windows OSs on VME, PCI, and PXI platforms have been developed. A new PXI unit has been designed as a base sub-system accommodating any type of data acquisition and control devices. Several web applications for the real-time MAST monitoring and data presentation have been developed.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2006.04.061