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LEFT-RIGHT CANTED-COSINE-THETA MAGNETS

United States Patent Application

20170372867
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Disclosed herein are superconducting gantry magnets that include multiple quadrupole winding sections placed in sequence on a curve such that the effective current direction is reversed between sections. This produces alternating quadrupole field regions along the length of the bend whose individual integral strengths can be tuned by the location of the current polarity transitions. A simple transition scheme to reverse the current between sections can be implemented to allow for the use of one continuous winding and power supply. Dipole windings can be included in the superconducting gantry magnets so that the magnets produce superposed dipole and alternating quadrupole fields. The disclosed design for the windings and transition scheme to reverse current polarity can be implemented for higher order multipoles as well.
Caspi, Shlomo (Alameda, CA), Brouwer, Lucas (Berkeley, CA), Wan, Weishi (Walnut Creek, CA), Robin, David (Oakland, CA), Prestemon, Soren (Martinez, CA)
15/ 542,383
January 8, 2016
STATEMENT REGARDING FEDERALLY SPONSORED R&D [0002] The inventions described and claimed herein were made with government support under Contract No. DE-AC02-05CH11231 awarded by the U.S. Department of Energy. The government has certain rights in this invention.