Author/Authors :
B.، Wang نويسنده , , C.S.، Hwang, نويسنده , , J.Y.، Chen, نويسنده , , R.، Wahrer, نويسنده , , C.H.، Chang, نويسنده , , T.C.، Fan, نويسنده , , F.Y.، Lin, نويسنده , , H.H.، Chen, نويسنده , , M.H.، Huang, نويسنده , , C.T.، Chen, نويسنده ,
Abstract :
A 32-pole superconducting magnet with a 12 * 80 mm/sup 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.
Keywords :
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