Method for aligning radiographic inspection system
First Claim
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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 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 distribution of flux intensity, 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.
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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
21 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 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 distribution of flux intensity, 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 (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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 (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification