IMPROVEMENT IN OR RELATING TO AN APPARATUS FOR TOMOGRAPHY COMPRISING FACILITIES BY MEANS WHEREOF FROM AN OUT-FANNING BEAM OF PENETRATING RADIATION CAN BE RECONSTRUCTED INTO SIGNAL PROFILES EACH CORRESPONDING WITH A BEAM OF PARALLEL INCIDENT RAYS

摘要

Flat out fanning beams of penetrating radiation in the plane of a slice of an object are bounded on one side by an axis of rotation through the object and extend on the other side past the object exterior. These beams are produced at corresponding angles of the rotation and impinge upon a continuous detector surface which is scanned at each angle to generate half profile signals which may then be processed to produce parallized profile signals.