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:
Dec. 22, 1987
Filed:
Mar. 18, 1985
Hugo Vlasbloem, Maasland, NL;
Simon Duinker, Bloemendaal, NL;
bv Optische Industrie'De Oude Delft', Delft, NL;
Abstract
An apparatus for slit radiography comprising an X-ray source, an X-ray detector positioned behind a body being irradiated, said detector collecting the radiation passed through the body, and a slit diaphragm placed between the X-ray source and the body being irradiated, through which diaphragm there is formed a planar X-ray fan beam, while for obtaining a complete X-ray shadow image of the desired part of the body at least the fan beam performs a scanning movement. There are provided detection means coacting with the X-ray detector and comprising a plurality of sections juxtaposed in the longitudinal direction of the strip-like portion of the X-ray detector irradiated through the slit diaphragm, each section being adapted to produce an electric signal depending upon the radiation impinging instantaneously on the associated section of the X-ray detector. The slit diaphragm comprises a plurality of sections juxtaposed in the longitudinal direction of the slit, each coacting with at least one controllable attenuation element and corresponding with the number of sections of the detection means, and is provided with control means which during the scanning movement instantaneously and simultaneously adjust the quantity of X-rays passed per section of the diaphragm, under the control of the electric signals generated by the detection means.