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Title: Left-right canted-cosine-theta magnets

Abstract

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.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1637881
Patent Number(s):
10586678
Application Number:
15/542,383
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61N - ELECTROTHERAPY
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/08/2016
Country of Publication:
United States
Language:
English

Citation Formats

Caspi, Shlomo, Brouwer, Lucas, Wan, Weishi, Robin, David, and Prestemon, Soren. Left-right canted-cosine-theta magnets. United States: N. p., 2020. Web.
Caspi, Shlomo, Brouwer, Lucas, Wan, Weishi, Robin, David, & Prestemon, Soren. Left-right canted-cosine-theta magnets. United States.
Caspi, Shlomo, Brouwer, Lucas, Wan, Weishi, Robin, David, and Prestemon, Soren. Tue . "Left-right canted-cosine-theta magnets". United States. https://www.osti.gov/servlets/purl/1637881.
@article{osti_1637881,
title = {Left-right canted-cosine-theta magnets},
author = {Caspi, Shlomo and Brouwer, Lucas and Wan, Weishi and Robin, David and Prestemon, Soren},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {3}
}

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Works referenced in this record:

Concentric tilted double-helix dipoles and higher-order multipole magnets
patent, July 2005