Design Issues for High Field Accelerator Magnets using HTS

• HTS is very brittle
  Conventional designs are not the most suitable
  

• Large Lorentz forces

• The required temperature uniformity during the heat treatment is high:
  (~1/2 degree at ~890o C)
  

• React & Wind Approach

Conventional cosine ? design (e.g., RHIC magnets)
Complex 3-d geometry in the ends

Conductor friendly racetrack coil with large bend radius
Suitable for high field magnets with brittle material

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