Ion and electron beam steering and focussing system

A system for focussing an electron beam with a magnetic field to impinge the electron beam on a straight conducting wire at a point thereon to provide a source of x-ray radiation from the straight conducting wire, the system comprising:

• electron beam projecting means for projecting the electron beam along the conducting wire in radial spaced relation thereto with sufficient energy to provide a source of x-ray radiation from said straight conducting wire after said electrons colide with said conducting wire;
• power supply means connected to the straight conducting wire for supplying current in one direction to the conducting wire, the power supply means including means for adjusting the current in the straight conducting wire for generating a magnetic field which focuses the electron beam on said point, the power supply means generating a circular magnetic field which is coaxial with the wire and which deflects electrons projected in said electron beam;
• means for aligning the output of the electron beam projecting means along a path extending in a direction substantially co-planar with and parallel to the axis of the conducting wire to define a plane including said path and the axis on the conducting wire, wherein a deflecting force is generated by the coaxial magnetic field, and exerts a force on each electron in the beam in said plane defined by said axis to focus and steer said beam.

A system for focussing ion beams with a magnetic field to impinge the ion beam on a target material to implant the ions in the target material, the system comprising:

• at least one straight conducting wire for carrying a large electric current;
• ion projecting means for porjecting ions along the conducting wire in radial spaced relation thereto;
• power supply means connected to the conducting wire for supplying current in one direction to said the conducting wire, the power supply means generating a circular magnetic field which is coaxial with the wire and which deflects ions projected by said ion projecting means;
• means for aligning the ion projecting means along a path extending in a direction substantially co-planar with and parallel to the axis of the conducting wire to define a plane including the path and the axis on the conducting wire, wherein a deflecting force is generated by the coaxial magnetic field, and exerts a force on each ion in said plane.