The invention relates to an apparatus for imaging a 75 Inventor : 73

Content Provider	Semantic Scholar
Author	Strecker, Helmut
Copyright Year	2017
Abstract	layer of a body to be examined. The body is irradiated by primary radiation, in response to which the layer emits scattered radiation. The apparatus comprises a diaphragm plate which is disposed outside the primary radiation beam. The diaphragm is rotatable about an axis perpendicular to its major surface, and it has at least one aperture which is disposed off of the axis of rota tion. A detector or a superposition device is provided for measuring or superimposing the scattered radiation which passes through the diaphragm plate at different aperture settings. The primary radiation is stopped down to form a flat fan-shaped beam. The diaphragm plate is oriented parallel to the fan-shaped beam. Each aperture corresponds to an associated detector, which follows the rotation of the diaphragm plate. The input face of each detector extends parallel to the diaphragm plate. The detector is arranged so as to be rotatable about a detector axis which is perpendicular to an input face and which extends through its center. The detector rotates in a direction opposite to the direction of rota tion of the diaphragm plate and with the same angular velocity as this plate.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://patentimages.storage.googleapis.com/4f/76/71/f19b39a32015a5/US4480332.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Patent