Correction of the persistent current effect in Nb3Sn dipole magnets

The paper describes a method and results of simulation of persistent current effect in high field Nb3Sn dipole magnets being developed for the future hadron colliders, Simple and effective techniques of passive correction of the persistent current effect in superconducting accelerator magnets are proposed, Using of these techniques allows a significant reduction of sextupole and decapole field components induced by persistent currents in a coil.