The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 1978
Filed:
Feb. 03, 1977
Applicant:
Inventor:
Colin Charles Oliver, Langley, Slough, GB;
Assignee:
EMI Limited, Hayes, GB;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
2504 / ; 250505 ; 250514 ;
Abstract
In a radiographic apparatus for deriving a representation of the variation of absortion of radiation in a slice of the body of a patient, data are derived which represent the intensity of radiation transmitted through the body. Detectors arranged to receive the transmitted radiation also receive further radiation, scattered within the body, which can cause errors in the final representation. The invention interposes occulting means between the radiation source and some detectors to obtain data representing only scatter to correct the transmission readings of the other detectors. The same detectors may serve both purposes at different times.