Apparatus and method for electron beam irradiation having improved dose uniformity ratio
AssigneeIon Beam Applications S.A.
InventorsJean Louis Bol, Olivier Gregoire, Francis Martin, Benoît Mullier, Frédéric Stichelbaut
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Abstract
The present invention is related to an apparatus and method for irradiating a product package, comprising a radiation source directing a radiation beam along a beam direction towards said product package, conveying means for transporting said product package past said radiation source along a transport path, and reflecting means located on at least one side of the plane formed by said beam direction and said transport path. By adjusting the distance and angle of the reflecting means to the conveyor and beam, and improved dose uniformity ratio is obtained.
Claims11
Apparatus for irradiating a product package, comprising a radiation source directing a radiation beam along a beam direction towards said product package, conveying means for transporting said product package past said radiation source along a transport path, reflecting means located on at least one side of the plane formed by said beam direction and said transport path, wherein the surface of the reflecting means are disposed at an angle of 1 to 15 degrees relative to said beam direction.
A method for irradiating product packages, comprising the steps of:
- providing a radiation source directing a radiation beam towards a transport path;
- providing reflecting means for reflecting part of said radiation beam towards said transport path;
- adjusting the angle of said reflecting means to said radiation beam;
- transporting said product package along said transport path, under said radiation beam, whereby part of said radiation beam is reflected by said reflecting means on sides of said product package.
Dependencies are inferred from the claim text.