METHOD FOR ALIGNING RADIOGRAPHIC INSPECTION SYSTEM
First Claim
1. A method for aligning a radiographic inspection system, comprising the steps of:
- providing a radiation source capable of emitting a beam pattern;
positioning a detector to receive radiation emitted from said radiation source;
causing said radiation source to emit said beam pattern;
using said detector to determine the distribution of flux intensity of said beam pattern;
relatively positioning said radiation source and said detector, so that said detector is disposed at a predetermined location within said beam pattern; and
moving the detector to a known location relative to the radiation source;
recording the flux intensity at a plurality of points on the detector; and
repeating the steps of moving the detector and recording the flux intensity until the recorded flux intensities can be used as a map of the beam pattern.
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Accused Products
Abstract
A method for aligning a radiographic inspection system includes providing a radiation source capable of emitting a beam pattern, positioning a detector to receive radiation emitted from the radiation source, and causing the radiation source to emit the beam pattern. The detector is used to determine the distribution of flux intensity of the beam pattern. A two-dimensional or three-dimensional map of the beam pattern may be stored. The system is aligned by positioning the radiation source and the detector with reference to the map, so that the detector is disposed at a predetermined location within the beam pattern.
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Citations
25 Claims
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1. A method for aligning a radiographic inspection system, comprising the steps of:
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providing a radiation source capable of emitting a beam pattern;
positioning a detector to receive radiation emitted from said radiation source;
causing said radiation source to emit said beam pattern;
using said detector to determine the distribution of flux intensity of said beam pattern;
relatively positioning said radiation source and said detector, so that said detector is disposed at a predetermined location within said beam pattern; and
moving the detector to a known location relative to the radiation source;
recording the flux intensity at a plurality of points on the detector; and
repeating the steps of moving the detector and recording the flux intensity until the recorded flux intensities can be used as a map of the beam pattern. - View Dependent Claims (2, 3, 4, 9, 10, 11, 12)
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5. (canceled)
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6. A method for aligning a radiographic inspection system, comprising the steps of:
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providing a radiation source capable of emitting a beam pattern;
positioning a detector to receive radiation emitted from the radiation source;
causing the radiation source to emit the beam pattern;
determining the distribution of flux intensity of the beam pattern;
relatively positioning the radiation source and the detector with reference to the map, so that the detector is disposed at a predetermined location within the beam pattern;
providing a shield for absorbing radiation; and
relatively positioning said radiation source and said shield with reference to said distribution of flux intensity, so that said shield is at a predetermined position relative to said beam pattern. - View Dependent Claims (7, 8)
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13. A method for aligning a radiographic inspection system, comprising the steps of:
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providing a radiation source capable of emitting a beam pattern;
positioning a detector at a first position relative to said radiation source, so as to receive radiation emitted from said radiation source;
causing said radiation source to emit said beam pattern;
creating a first group of records of the flux intensity received by said detector at a plurality of points on said detector;
creating a map comprising said records, said map describing the flux intensity at a plurality of positions within said beam pattern;
relatively positioning said radiation source and said detector with reference to said map, so that said detector is disposed at a predetermined location within said beam pattern;
positioning the detector at a preselected second position relative to the radiation source;
causing the radiation source emit the beam pattern;
creating a second group of records of flux intensity received by the detector at a plurality of points on the detector; and
adding the records to the map. - View Dependent Claims (14, 15, 17, 18, 23, 25)
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16. (canceled)
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19. A method for aligning a radiographic inspection system, comprising the steps of:
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providing a radiation source capable of emitting a beam pattern;
positioning a detector at a first position relative to the radiation source, so as to receive radiation emitted from the radiation source;
causing the radiation source to emit the beam pattern;
creating a first group of records of the flux intensity received by the detector at a plurality of points on the detector;
creating a map comprising the records the map describing the flux intensity at a plurality of positions within the beam pattern;
relatively positioning the radiation source and the detector with reference to the map, so that the detector is disposed at a predetermined location within the beam pattern;
providing a shield for absorbing radiation; and
relatively positioning said radiation source and said shield with reference to said map, so that said shield is at a predetermined position relative to said beam pattern. - View Dependent Claims (20, 21, 22, 24)
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Specification