A New Plasma Confinement System A superconducting solenoid with 1.75 T field and 0.24 m warm bore is ready for service in the radial confinement of non-neutral plasmas. A stainless steel vacuum chamber has been installed and baked to 3 nT.
The following figure (10k jpg file) shows a closeup view of a portion of the gold-plated copper electrode structure as it was being assembled in preparation for insertion into the magnet bore.
There are seven cylinders each of length 80mm and inside diameter 51 mm, mounted on ceramic standoffs from a stiffening rib support. The cylinders have 0, 4, or 4 + 8 insulated sector plates. Between cylinders are ceramic dowels for relative alignment and short guard rings for capacitive isolation.
e-photo by Bob Pollock, Oct. 28 ,1999