A b s W t -A superconducting magnet usssmbly Bar Been built for rm ECR (Electron Cyclotron Resonarm$ Ion sowce at the 88~inch cyclohoti at LBL'. Three 34-cm ID solenoids provide axhl plasma cotijintw" and U sexfupole ussembly in the solenoid bore provides radial stabill@. Two large solenoid8 are spaced SO em. npwi with a smaller opposing solenoid bedween. The sexlupole ussembly is 92 cm long with winding inner diameter of 20 cm. and outer diameter of 27.2 em. Tfis design goat is fo achieve afield on axis of 4 T und 3 T a t the mirrors with 0.4 T behvees and a sexfapole field of 2.0 T at IS-cm diumeter iti the confinement volume. Emfr solenoid uses rectrsngrrlar conductor wtth mpper/'SC ratio of 4; flie three coils are wet-wound on a one-piece aluminlrm bobbin with aluminum bnndti!g for rudiui suppord. The sexapole uses rectangular conductor with copper/SC ratio of 3. EacR of the 6 eoik is wet-wound with filled epoxy ori a metal pole; the ends of the pole are ahminum and the central 34-cm h lron to augment the sextupokfldd. The a& coils me assembled on a 2O-cni4lD stainless steel hrbe with a I.4-cm thick 30.0.cm OD aluminum tribe over the assembly for striictural support. Thin metal bludders are exparrded adtnut!ially behveen each coil axially ab the ends to pre-load the assembly, The sexhrpob assembbflts inside lire solenoid bobtin, wlikb provMes support for the magnetic forces. The magnet exceeds design requirements with ni inim um training.

Abstract-The purpose of the MICE spectrometer solenoid is to provide a uniform field for a scintillating fiber tracker. The uniform field is produced by a long center coil and two short end coils. Together, they produce 4T field with a uniformity of better than 1% over a detector region of 1000 mm long and 300 mm in diameter. Throughout most of the detector region, the field uniformity is better than 0.3%. In addition to the uniform field coils, we have two match coils. These two coils can be independently adjusted to match uniform field region to the focusing coil field. The coil package length is 2544 mm. We present the spectrometer solenoid cold mass design, the powering and quench protection circuits, and the cryogenic cooling system based on using three cryocoolers with re-condensers.

Abstract-The Lawrence Berkeley National Laboratory is preparing to upgrade the Advanced Light Source (ALS) with three superconducting dipoles (Superbends). In this paper we present the final magnet system design which incorporates R&D test results and addresses the ALS operational concerns of alignment, availability, and economy. The design incorporates conduction-cooled Nb-Ti windings and HTS current leads, epoxy-glass suspension straps, and a Gifford-McMahon cryocooler to supply steady state refrigeration. We also present the current status of fabrication and testing.

A 32-pole superconducting magnet with a 12 80 mm 2 cold bore aperture was designed to serve as a multipole wiggler in the Taiwan synchrotron light source. The magnet consists of 32 pairs of racetrack NbTi superconducting coils with a periodic length of 60 mm, and can produce a maximum magnetic field of 3.2 Tesla at a pole gap of 18 mm. The superconducting coils, the aluminum-supporting block, and the return iron yokes are cooled to 4.4 K in LHe bath. The temperature of cold bore beam duct will be at 70 K using liquid nitrogen. Technical issues concerning the design of the magnet and its construction are discussed. A prototype magnet with five poles was also constructed to characterize the magnet design by means of various methods of magnetic field measurement.