Performance of the First magnet Based on the Common Coil Design
1. The magnet reached plateau performance right away (plateau seems to be on the cable short sample, not wire short sample).
2. Didnít degrade for a low horizontal pre-load (must for this design).
3. Didnít degrade for a low vertical pre-load (highly desirable).
4. Didnít degrade for a bigger hole (real magnets).
The first common coil magnet was built and tested at LBL
A 6 T magnet using low grade (free) Nb3Sn