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US 4,400,825 AGranted
Adjustable slit radiographic apparatus
AssigneeGeneral Electric Company
InventorsJohn J. Boggi, Gerald V. Centrone, Aaron M. Dolin, Ira N. Sherman
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Abstract
A system is provided for facilitating the use of an in-motion slit radiographic technique to inspect 3-dimensional composite materials. The system includes a lead lined device that is adjustable to form various slit shaped and size openings. When used in conjunction with a standard X-ray source and film, the device prevents the non-parallel and undesirable portion of the X-ray radiation from creating a distorted image when complex 3-dimensional structures are inspected.
Claims4
An apparatus for proving in-motion slit radiography of objects of varying sizes and shapes, comprising:
- an X-ray source;
- an X-ray shielding structure positioned between said X-ray source and an object to be X-rayed;
- said shielding structure including a platform forming a barrier to X-ray radiation and having an opening extending through said platform for passing therethrough radiation from said X-ray source to the object;
- said opening having a triangular shaped portion, and a rectangular portion having one side coincident with the base of said triangular portion;
- X-ray film positioned so that the object to be X-rayed is between said X-ray source and said film;
- means for adjusting said opening in said structure to expose a portion of a surface of the object to substantially parallel beams of radiation at any one moment;
- said means for adjusting said opening including a first pivotally mounted X-ray radiation shield attached to said platform for movement to a first position over said opening to adjust the size of a triangular slit formed thereby;
- and
- means for moving the object relative to said X-ray source to cumulatively expose the entire surface of the object and said film to radiation from said X-ray source.
6 more elements
Dependencies are inferred from the claim text.