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US 6,617,586 B2Granted
Beam delivery system
AssigneeScandiNova AB
InventorsDavid Woodburn, Walter Crewson
Life of this patent
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Abstract
A beam delivery system uses a set of electronically controlled magnets with a common magnetic yoke to steer the beam directly onto the products being irradiated with a very short distance between the magnets and the products.
Claims12
An electron beam delivery system for directing beam pulses to desired positions on a product that is following a path close to said system, comprising:
- accelerator means for delivering a pulsed beam of charged particles;
- and
- a directing system for controlling the beam, said directing system comprising:
- power supply means for feeding coils of oppositely situated magnetic cores that define magnets to thereby generate respective magnetic fields in the gap between pairs of oppositely situated core legs, each of said coils being wound around a respective one of said core legs, and each of said core legs including a magnetic pole face,
- wherein all of said magnets are fixed to a common return yoke such that, upon entrance of said beam pulses into said gap, magnetic fields of consecutive magnets are selectively turned on to bend consecutive pulses of charged particles onto desired positions on the product.
2 more elements
Dependencies are inferred from the claim text.