Radiation collimator for use with high energy radiation beams
A collimator is described for use with a beam of radiation, and in particular, for use in controlling the cross-sectional size and shape of the radiation beam and intercepting undesired off-focus radiation in an x-ray apparatus. The collimator is positioned adjacent to the source of radiation and embodies a plurality longitudinally extending leaves pivotally mounted on and between two supports, the leaves move about their pivots to close overlapping relation to define a hollow cone. The cone defines an aperture at its narrow end which can be adjusted in size and shape by rotation of the two supports which are adaptable to being moved one relative to the other, to cause an expansion or contraction of the hollow cone and correspondingly an increase or decrease of the cross-sectional size and/or shape of the radiation beam passing through the aperture.
- Assignee:
- TIC; EDB-79-034845
- Patent Number(s):
- US 4086494
- Application Number:
- TRN: 79-004728
- OSTI ID:
- 6536024
- Resource Relation:
- Patent File Date: Filed date 17 Dec 1976
- Country of Publication:
- United States
- Language:
- English
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