Tomometry system having provisions for selectively adjusting the format of a displayed picture

Abstract From the Canadian patent

An apparatus for examining an object disposed between a source of penetrating radiation and a radiation responsive detector having an image intensifier tube and associated continuous detector screen, the combination of said source and said detector together with an adjustable beam collimator being mounted so as to allow for a rotation relative to the object about an axis extending perpendicularly to a cross-sectional plane of said object; the efficiency of said apparatus can be improved if such apparatus can be selectively adapted to function either as a system for providing an overall X-ray image, or as: a system for providing a tomogram; such improvement is achieved by the provision of an …