Abstract: In an exemplary embodiment, a flat radiation beam is detected having a common electrode disposed parallel to the beam plane at one side and a common support with a series of individual conductors providing electrodes opposite successive portions of the common electrode and lying in a plane also parallel to the beam plane. The beam may be fan-shaped and the individual electrodes may be aligned with respective ray paths separated by uniform angular increments in the beam plane. The individual conductors and the connection thereof to the exterior of the detector housing may be formed on an insulator which can be folded into a T-shape for leading the supply conductors for alternate individual conductors toward terminals at opposite sides of the chamber.

Abstract: In the exemplary embodiments, a radiation measuring arrangement which includes radiation source is rotated for irradiating the radiography subject from different directions. A measured value converter calculates a layer image from the output signals of the detectors of the radiation receiver. For shielding against stray radiation, two hollow cylinders of equal diameter and with a common axis and comprised of a radiation-absorbing material lie between the radiation source and the radiation receiver, a gap for the passage of the x-ray beam being left therebetween. The radiography subject is introduced into the hollow cylinders.