PPT Slide
Magnetic Design of 14 T Dipole (the magnet under development)
- 40 mm aperture, 2-in-1 common coil magnet design, 220 mm bore spacing
- Uses the high performance, the best available, Nb3Sn conductor
- Jsc(12T, 4.2K) ~2000 A/mm2, Cu/Sc Ratio = 0.7, 1.7
- 70 mm bend radius (in ends), one end spacer in outer coils to reduce peak field
- Iron insert & iron yoke in magnet body; no iron over ends to reduce peak field
- Three full (plus one partial) layers to give a computed 14.3 T field at 4.2 K
- assumes no degradation (either due to stress or in cabling)
- 13.7 T with Oxford cable (has less SC) and single power supply
- Uses unconventional cable grading
- graded in width (NOT in thickness) for better efficiency and flexibility
- Field quality
- not a field quality design yet, but some components of it may be used in a field quality magnet.