Magnet Technology

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Magnet Technology

• Joel Schultz, Joe Minervini, Timothy Antaya
• Fusion Magnet Program
• MIT Plasma Science and Fusion Center
• DOE/OFE/VLT Meeting
• Gaithersberg, MD
• August 25, 2005

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Key RD Thrusts over next 5 years for Magnet
Technology

• Superconductors
• - advanced superconductor development
• - superconductor science
• Conduits
• - conduit material improvement
• - conduit reliability research
• Insulation
• - more radiation-resistant insulations
• - composite failure characterization
• Quench Protection
• Code development

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Descriptions of RD thrusts

• Superconductors
• Development Higher Jc Nb3Sn, Experimental Coils
  with higher Tc superconductors, e.g. MgB2, YBCO,
  BSCCO, Nb3Al
• Characterization Improved strain dependence
  theory, damage statistics, noninvasive crack
  detection, bending experiments/theoretical
  interpretation
• Conduit
• Characterization Complete characterization of
  Incoloy 908
• Development SAGBO risk reduction in 908, New
  conduit materials
• Insulation
• Development Radiation-resistant insulation,
  e.g. ceramic weave, matrix less expensive, e.g.
  CTD-800 series crack-free insulation
  Characterization integrated shear/bonding,
  composite crack growth theory, integrated
  electrical-mechanical failure prediction
• Quench Protection
• Develop advanced quench sensors, theory, test
  signal/noise theory in noise-injection
  experiments
• Code Development
• Thermohydraulics integrated loss/transport/diffu
  sion with quench propagation, Cable strains
  integrated geometry generator with
  stress/deflection codes. Integrated strain
  effect/filament breakage code

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Current Spending on RD Thrusts

• Superconductor Development 466 K
• Conduit Development 488 K
• Insulation Development 68 K
• Quench Detection/Protection 0 K
• Code Development 136 K
• Total 1,158 K

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Characterization of RD thrusts to VLT missions