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IT at JET - A Challenging Fusion Research Environment


[ JET Tokamak ]
The JET fusion experiment tokamak at Culham, Oxfordshire.
 
 
BCS Oxfordshire branch talk January 24th 2008 by Sverker Griph

Background and History

  • Fusion for energy - a short introduction.
  • A short introduction to the JET project and the JET plant.
  • Mission critical IT - control, monitoring, data acquisition, data processing, engineering, management and remote collaboration.

Special IT Challenges at JET

  • Project longevity - 30 years +
  • High complexity
  • High rate of change
  • High availability
  • Very high power and stored energy - risk for substantial damage
    • High voltage isolation of fast analog signals
  • Micro second synchronisation of thousands of modules in a large plant
  • Real time IT:
    • fast feed back loops with complex calculations
    • typically 2 ms iteration time
  • Large and growing experimental data volumes - all on-line
  • 4 experiments per hour in 2 shift operation
  • Every experiment typically need more than 20000 parameters to be configured
  • Preliminary number crunching of results between experiments
  • Remote collaborations across Europe and beyond - remote leadership of experiments

These challenges are for example addressed by

  • selective adoption of and longterm ownership of IT standards,
  • extensive use of data driven design,
  • a pervasive use of IT engineering databases and
  • an in-house high performance software component architecture.

The talk will also briefly cover how IT at JET is likely to influence IT at ITER, the next global fusion research project.


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2007-10-26 20:33


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