Accelerators – Magnets

MAGNETS

Magnet SPC 1 SPC 2 SSC  
Pole parameters diameter 116 cm> 116 cm
  Rextract 47.6 cm 47.6 cm 443 cm
  Rinject 101 cm
Hill parameters gap (max) 15.6 cm 15.6 cm 6.6 cm
  Bmin 1.23 T 1.24 T 1.27 T
Valley parameters gap (max) 25.0 cm 25.0 cm  
  Bmin 0.75 T 0.75 T  
Average field <B>min 0.3 T 0.3 T
  <B>max 0.98 T 1.0 T 0.24 T
Number of sectors compact / separated 4 / – 4 / – – / 4
  sector angle 45° 45° 34°
  spiral (max)
Field trimming Trim coils 5 6 29
  Harmonic coils 2 2 0
  Other 2 Cone coils 2 Cone coils 2 yoke coils on each of the 4 sectors
Current Main coils 800 A 690 A 1600
  Stability 10-5 10-5 10-5
  Trim coils 180 A 200 A 500
  Stability 10-4 10-3 10-4
Weight Iron 54.5 tons 54.5 tons 1400 tons
  Conductor 1.85 tons copper 1.85 tons copper 5.8 tons
Ion energy Bending limit, E/A 11q2/A2   MeV/u 11q2/A2   MeV/u 220q2/A2   MeV/u
  Focusing limit, E/A 220q/A   MeV/u

 

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