Patent ID: 8543177

Claim:
A superconducting magnet system for generating a uniform magnetic field, the system comprising: first and second sets of superconducting pucks or solenoids along each of first and second sides of the superconducting magnet system; third and fourth set of superconducting pucks or solenoids along each of third and fourth sides of the superconducting magnet system; and wherein at least one of the said first, second, third and fourth sets of superconducting pucks or solenoids has a magnetisation of said superconducting pucks or solenoids which varies along a longitudinal direction of said superconducting magnet system; wherein said variation has a waveshape which has an amplitude which increases towards an end of said superconducting magnet system; wherein said waveshape has the form of a ringing pulse having an amplitude which decays in a direction away from said end towards a centre of said superconducting magnet system; and wherein said waveshape defines magnetisation values of said superconducting pucks or solenoids at discrete positions at which said superconducting pucks or solenoids are located.