Tomography system
Patent
·
OSTI ID:6477357
A linear tomographic method and apparatus wherein an overhead tube-stand or x-ray tube unit is non-mechanically coupled to a bucky or x-ray film holder to produce linear tomographs. No physical attachment exists between the tube-stand and the bucky. The tube-stand position is sensed by electro-magnetic radiation and more particularly by light radiation which is generated by a laser and directed to a reflector attached to the tube-stand adjacent to the tube focal spot. Light energy is reflected therefrom and sensed by an interferometer which produces a tube-stand position signal which is used to generate a command signal to operate respective drive motors which translate the bucky in an opposite diretion to the tube-stand and simultaneously rotate the x-ray tube so that the x-ray focal spot, center of film, and imaginary fulcrum point remain substantially colinear during a tomographic sweep.
- Assignee:
- CGR Medical Corp.
- Patent Number(s):
- US 4087694
- OSTI ID:
- 6477357
- Country of Publication:
- United States
- Language:
- English
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