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Title: Apparatus for producing a visual representation of a radiographic scan

Abstract: Apparatus is disclosed for providing a visual representation of the absorption or transmission coefficients of the elements of a two dimensional matrix of elements notionally defined in a cross-sectional plane through a body. The representation is in the form of an analogue display comprising superimposed lines of information scanned on the surface of a suitable screen, the brightness of each line being indicative of the absorption suffered by penetrating radiation on traversing a respective path through said plane of the body. The orientation of each scanned line depends on the orientation of the respective path with respect to the body.


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Inventors: Hounsfield, Godfrey Newbold (Newark, EN)

Application Number: 462103
Filing Date: 1974-04-18
Publication_date: 1976-01-13
Assignee: EMI Limited (Hayes, EN)
Primary Class(es): 378/4 250/329, 250/369
Other Classes:
US Patent Ref:
2996617Aug, 1961Heckscher250/329.
3549887Dec, 1970Hansen250/369.

Other Refs:
Primary Examiner: Willis, Davis L.
Assistant Examiner:
Attorney: Fleit & Jacobson