A conventional ion implanter generally comprises three Sections or Subsystems: (i) an ion Source for outputting an ion beam, ii) a beamline including a mass analysis magnet for mass resolving the ion beam, and (iii) a target chamber which contains the Semiconductor wafer work piece to be implanted by the ion beam.8 The entire region between the ion Source and the Semiconductor wafer work piece is maintained at high Vacuum to prevent formation of neutrals by collision of beam ions with residual gas molecules.