X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2005-08-02
2005-08-02
Church, Craig E. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S004000
Reexamination Certificate
active
06925145
ABSTRACT:
A system and method for high-speed radiographic inspection of fluid transport vessels in which a radiation source and a radiation detector are positioned on opposite sides of the outside surface of the vessel. A positioning system is provided for moving and locating the radiation source and radiation detector longitudinally with respect to the vessel and for moving the radiation source and radiation detector circumferentially with respect to the vessel. In operation, the positioning system causes the radiation source and radiation detector to spiral along the vessel in a coordinated manner while the radiation source illuminates an adjacent region of the vessel with radiation. The radiation is converted into corresponding electrical signals used to generate images of objects in the radiation path. Finally, an operator inspects the images for defects.
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Walker, Stan M., US13 New NDE Developments Support Rapid, Economical Screening For Flow-Accelerated Corrosion; EPRI NDE Center, 1300 Harris Blvd., Charlotte, NC 28262, Oct. 1999, vol. 4. No. 10.
Allison Peter
Batzinger Thomas J.
Lasiuk Brian W.
Matula August D.
Mohr Gregory A.
Church Craig E.
General Electric Company
Wegman Hessler & Vanderburg
Yun Jurie
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