US 9,812,282 B2
System and method for irradiating a product
Peter W. A. Brown, Almonte (CA); David A. Brown, Dunrobin (CA); David J. Hepworth, Ottawa (CA); and David Macrillo, Almonte (CA)
Assigned to Mevex Corporation, Stittsville (CA)
Filed by MEVEX CORPORATION, Stittsville (CA)
Filed on Nov. 26, 2015, as Appl. No. 14/952,986.
Prior Publication US 2017/0154751 A1, Jun. 1, 2017
Int. Cl. A61L 2/08 (2006.01); H01J 37/141 (2006.01)
CPC H01J 37/141 (2013.01) [A61L 2/087 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A system for irradiating a product, the system comprising:
an electron accelerator;
a vacuum chamber, the electron accelerator configured to inject electrons into the vacuum chamber;
an electromagnet movable along an axis of the vacuum chamber, the electromagnet having a coil assembly, the electromagnet to generate a magnetic field in the vacuum chamber, the magnetic field being a function of an electric current circulating in the coil assembly;
a position controller to control a position of the electromagnet along the axis of the vacuum chamber;
a current controller to control the electric current circulating in the coil assembly, the position of the electromagnet and the electric current circulating in the coil assembly being selectable to have the electromagnet steer electrons from the vacuum chamber toward the product;
a processor operationally connected to the position controller and to the current controller; and
a tangible, non-transitory computer-readable medium having recorded thereon instructions to be performed by the processor to cause the position controller to vary the position of the electromagnet with respect to the product and to cause the current controller to vary the electric current circulating in the coil assembly as a function of the position of the electromagnet with respect to the product, the electric current being varied to adjust, as a function of the position of the electromagnet with respect to the product, a steering angle of the electrons steered from the vacuum chamber toward the product.