Abstract: A computer tomograph detector for the detection of electromagnetic radiation transmitted by an object, which detector includes at least one detector row which consists of a plurality of detector elements, each detector element including a scintillator for converting radiation of a first energy level into radiation of a second energy level, as well as a photosensor for converting the radiation into an electrical current, each photosensor being associated with an amplifier element, is extended in such a manner that it can include a plurality of detector rows while the electronic noise is nevertheless reduced and at the same time a higher DQE is obtained; this is achieved by arranging a plurality of photosensors and the associated amplifier elements on the same substrate in integrated semiconductor technique.

Abstract: The invention relates to a grid (3) for the absorption of X-rays (11). An anti-scatter grid for reducing the scattered radiation is readily manufactured by arranging a plurality of layers containing wire elements (10) that are spaced apart and an appropriate ruggedness is achieved also for large-area X-ray detectors.

Abstract: In order to manufacture a scintillator layer for a detector for the detection of electromagnetic radiation, transmitted by an object, which has a high spatial resolution and only a slight interaction between the scintillator elements, it is proposed to pour a molten mass of a radiation-absorbing metal, having a melting point below 350° C., into intermediate spaces which extend vertically between neighboring scintillator elements.

Abstract: The invention relates to an X-ray detector 8 which includes a sensor matrix and a scintillator arrangement 20 and in which wire elements 21 and 22 are spaced apart in layers A and B in order to reduce the crosstalk in neighboring detector elements; scintillators 23 are inserted at least partly in the grid openings 24 formed.

Abstract: To provide an AC/DC converter including a resonant converter which reliably supplies a constant DC power supply voltage (U.sub.out) in a wide output power range, while using a minimal number of components, and in which the input impedance of the AC/DC converter should have a minimal reactive impedance, both a capacitive (C2) and an inductive (n3) coupling of the resonant converter (8) to a point (5) between the resonant converter (8) and a rectifier arrangement (1) is provided. The rectifier arrangement is used for rectifying an AC voltage (U.sub.in) applied to the AC/DC converter.

Abstract: A method describing the manufacture and use of aqueous suspensions comprising fine-powdered ceramic solid particles, dispersing agents and, if necessary, binders, in which method the manufacture of the suspensions includes the following process steps which are carried out separately or in combination:washing the solid particles in water before preparing the suspension;adding anionic compounds, in the form of sulphates, carbonates, iodates, chromates, oxalates, citrates and/or tartrates;manufacturing the suspensions and/or storing the finished suspensions in a CO.sub.2 -free gaseous atmosphere;manufacturing the suspensions and storing the finished suspensions at a temperature below 20.degree. C., preferably below 15.degree. C.;adding additional dispersing agents to the suspension at a time when reagglomeration of the solid particles in the suspension has not yet started or just started.