Title :
The ironless cos θ magnet option for the SSC
Author :
Fisk, H.E. ; Brown, B.C. ; Carson, J.A. ; Edwards, D.A. ; Edwards, H.T. ; Engler, N.H. ; Gonczy, J.D. ; Hanft, R.W. ; Koepke, K.P. ; Kuchnir, M. ; Lundy, R.A. ; Mantsch, P.M. ; Mazur, P.O. ; McInturff, A.D. ; Nicol, T.H. ; Niemann, R.C. ; Powers, R.J. ; R
Author_Institution :
Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510
Abstract :
The Fermilab design of a 5 T, 5 cm aperture superconducting dipole is described, that attempts to integrate essential cryogenic details with a low cold mass, low heat leak magnet containing a coil surrounded by aluminum collars. Operating characteristics of coils made with aluminum collars are presented along with harmonic data obtained from 1 meter long 5 cm aperture collared coils. A summary of results obtained from cold tests of a 7.6 cm aperture, 6 m long aluminum collared coil in an iron vacuum vessel cryostat are reviewed. Results from the measurement of heat leak to 4.5K, 10K, and 80K are discussed for a 12 m prototype cryostat. Calculations are summarized for passively correcting the persistent current sextupole fields.
Keywords :
Aluminum; Apertures; Cryogenics; Iron; Magnetic field measurement; Persistent currents; Prototypes; Superconducting coils; Superconducting magnets; Testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1985.4334397
