Patent ID: 7994739
Filing Date: 2011-08-09
Classification: H01J,H05G,H05H

Abstract:
1. A betatron magnet having at least one electron injector positioned approximate an inside of a radius of a betatron orbit, the betatron magnet comprising: a first guide magnet having a first pole face and a second guide magnet having a second pole face and both the first guide magnet and the second guide magnet having a centrally disposed aperture, wherein the first pole face is separated from the second pole face by a guide magnet gap; a core disposed within the centrally disposed apertures, in an abutting relationship with both the first guide magnet and the second guide magnet, the core having at least one core gap; a drive coil wound around the first pole face and the second pole face; an orbit control coil having a core portion wound around the at least one core gap and a field portion wound around both the first pole face and the second pole face, the core portion and the field portion are connected in series but in opposite polarity; wherein magnet fluxes in the core and the first and the second guide magnets return through one or more peripheral portions of the betatron magnet; a circuit effective to provide voltage pulses to the drive coil and to the orbit control coil; and an electron acceleration passageway located within the guide magnet gap such that electrons are injected into the betatron orbit with the at least one electron injector positioned approximate the inside of the radius of the betatron orbit within the electron acceleration passageway.