X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2006-08-15
2006-08-15
Thomas, Courtney (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S069000
Reexamination Certificate
active
07092487
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.
REFERENCES:
patent: 6504398 (2003-01-01), Lien et al.
patent: 6504898 (2003-01-01), Kotler et al.
patent: 6931095 (2005-08-01), Koenck et al.
Hahn Peter K.
Luce Forward Hamilton & Scripps
The Titan Corporation
Thomas Courtney
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