Title :
Superconducting magnetic system for polarized proton filter
Author :
Gavrilov, M.G. ; Dronjaev, V.P. ; Mikhaylov, A.V. ; Novytsky, V.V. ; Karasik, V.R. ; Kleshnina, O.A. ; Konyukhov, A.A.
Author_Institution :
Inst. of Theor. & Exp. Phys., USSR
fDate :
1/1/1992 12:00:00 AM
Abstract :
The SMS consists of two pairs of symmetrical coaxial coils wound by multifilamentary Nb-Ti/Cu wires with 1.0 and 1.2 mm diameters. The windings were impregnated by epoxy. The dimensions of the central coil windings are inner diameter 220 mm, outer diameter 340 mm, and height 43 mm. The dimensions of the side coil windings are inner diameter 100 mm, outer diameter 120 mm, and height 41 mm. The overall dimensions of the SMS are diameter 405 mm, and height 260 mm. The maximum working current is 360 A. The magnetic field in the center is 5.6 T. The dimensions of the zone with field uniformity within 2×10-4 are diameter 72 mm and height 20 mm. The stored energy is 0.34 MJ. The SMS can work in the persistent mode. The resistance of the superconducting switch in a normal state is 1 Ω. The magnetic field attenuation is not more than 10-5 per 1 h. A quench protection technique by subdivision with external low ohmic shunting resistors is used
Keywords :
beam handling equipment; polarised targets; superconducting magnets; 0.34 MJ; 360 A; 5.6 T; NbTi superconductor; epoxy impregnated windings; low ohmic shunting resistors; magnetic field attenuation; multifilamentary NbTi-Cu wires; persistent mode; polarized proton filter; quench protection technique; subdivision; superconducting magnet system; superconducting switch; symmetrical coaxial coils; Magnetic fields; Magnetic separation; Multifilamentary superconductors; Polarization; Protons; Superconducting coils; Superconducting filaments and wires; Superconducting filters; Superconducting magnets; Switches;
Journal_Title :
Magnetics, IEEE Transactions on
