Beam scanning system
AssigneeIndustrial Coils, Inc.
InventorHarald A. Enge
Life of this patent
Estimating the term…
Abstract
A system for deflecting a beam of particles having different momenta, preferably through a 90.degree. angle, so as to cause the beam to impinge upon a moving target and to scan across the target. The system includes a means responsive to a beam from a suitable source for causing the beam to periodically scan in a scanning plane and further means for deflecting the periodically scanned beam through the desired angle in a deflection plane so that the deflected beam impinges on the target. Means are included in the system for reducing the momentum dispersion at the target in both the deflection and the scanning planes and for spatially focussing the beam so as to produce a desired beam diameter at the target.
Claims13
A system for deflecting an input beam of charged particles having a spread of momenta from a source thereof to cause said beam to impinge on a target having a predetermined spatial relationship with said source, said system comprising
- means responsive to said input beam for periodically scanning said beam in a scanning plane;
- means responsive to said periodically scanned beam for deflecting said periodically scanned beam through preselected angle in a deflection plane, the said scanning plane subsequent to said deflection being angularly oriented with respect to said scanning plane prior to said deflection, said deflected and periodically scanned beam being thereupon directed to impinge upon said target plane;
- and
- means for substantially reducing the momentum dispersion of said beam in the deflection plane at said target due to the deflection thereof by said deflecting means and for substantially reducing the momentum dispersion of said beam in the scanning plane at said target due to the periodic scanning movement thereof by said beam scanning means.
Dependencies are inferred from the claim text.