Abstract: This invention is advantageous in irradiating pallets which cannot be irradiated by conventional techniques, even by x-rays, throughout their complete volumes. In one embodiment, a scan horn scans electron beamlets through a sweep angle. A dipole bends the electron beamlets to focus the electron beamlets at the pallet center. After being bent, the beam becomes converted to x-rays which are irradiated through the pallet to the pallet center. During this irradiation, the pallet is moved in a direction substantially perpendicular to the irradiation. In this way, a quarter of the pallet is irradiated. When the quadrant radiation is completed, the radiation is interrupted and the pallet is rotated 90° to have a second side of the pallet face the radiation. The operation is sequentially repeated for each of the pallet sides. The four (4) irradiated quadrants define the pallet's complete cross-sectional area.

Abstract: An accelerator directs an electron beam to a scanner which operates under microprocessor control to convert the beam into two (2) sets of spaced electron beamlets. A magnetic lens deflects the sets of beamlets to a spaced and substantially parallel relationship. A first dipole directs the first set of beamlets in a first direction to a first side of an article. A second dipole directs the second set of beamlets, in a second direction opposite to the first direction, to a second side of the article opposite to the first side of the article. In this way, a single accelerator irradiates two (2) opposite sides of the article with an enhanced precision, simplified controls, a significantly reduced number of components and reduced costs relative to the systems of the prior art. The electron beam may be converted to an x-ray beam which is then processed in the manner described above.

Abstract: An accelerator directs an electron beam to a scanner which operates under microprocessor control to convert the beam into two (2) sets of spaced electron beamlets. A magnetic lens deflects the sets of beamlets to a spaced and substantially parallel relationship. A first dipole directs the first set of beamlets in a first direction to a first side of an article. A second dipole directs the second set of beamlets, in a second direction opposite to the first direction, to a second side of the article opposite to the first side of the article. In this way, a single accelerator irradiates two (2) opposite sides of the article with an enhanced precision, simplified controls, a significantly reduced number of components and reduced costs relative to the systems of the prior art. The electron beam may be converted to an x-ray beam which is then processed in the manner described above.