Patent ID: 8138484

Claim:
A magnetic deflection system for scanning an ion beam comprising: a yoke assembly having an entrance end and an exit end with a beam path region extending therebetween, wherein the beam path region is generally radially bounded by an inner surface of the yoke assembly; first and second pole pieces extending from the yoke assembly towards one another and towards the beam path region, wherein a pole gap region is defined between the first and second pole pieces proximate to the beam path region; first and second coils wrapped around the first and second pole pieces, respectively, wherein the first and second coils are configured to be coupled to a current source to pass a time-varying current through the first and second coils such that the first and second coils generate an oscillatory time-varying magnetic field in the pole gap region; and at least one magnetic flux compression element disposed within the inner perimeter of the yoke assembly and outside of the beam path region.