To further the capability with Direct Wind technology, ongoing tests are being used to
develop and determine the range of the process.
Ongoing work will be towards tighter bend radii, as well as reduction of the
support tube diameter.
Figure 25 shows the result of refinements to the wiring process. On the left is a sextupole
coil wound around a 1 inch diameter support tube. It has five turns in serpentine fashion, this
results in a 2.5 turn per pole magnet. On the right is a 6 turn serpentine sextupole. Note that
the inner radius, therefore the pole angle, has been reduced, and each pole now has 3 turns