Abstract:
An x-ray detector system has a detector element disposed at the end of a channel formed by spaced collimator plates. The thickness of each collimator plate projected onto the detector element increases along the length of the collimator plates in the direction of radiation propagation through the channel. The projection (and thus the thickness) has a greatest value at a detector-proximate end of the plate. The edge regions of the detector element are thus shielded from x-radiation by the extended width collimator plates. The length of the absorption paths in the detector element thus are substantially the same, even given a detector element which is slightly obliquely disposed. Thus the shape of the portion of the detector surface effective for detecting radiation is substantially independent of slight changes in the focus position.
Abstract:
The invention relates to a device for forming connections of a printed circuit board which is arranged within a signal receiver frame. The device comprises a plurality of connection elements (3a . . . 3k) whose end portions are bent, each end portion being provided with at least one projection (5). Between each time two connection elements (3a . . . 3k) there is provided a respective detainer (4a . . . 4j) whose end portion is also bent. The end portions of the connection elements (3a . . . 3k) define a plane which extends parallel to a plane defined by the end portions of the detainers (4a . . . 4j).
Abstract:
The invention relates to a device for forming connections of a printed circuit board which is arranged within a signal receiver frame. The device comprises a plurality of connection elements (3a . . . 3k) whose end portions are bent, each end portion being provided with at least one projection (5). Between each time two connection elements (3a . . . 3k) there is provided a respective detainer (4a . . . 4j) whose end portion is also bent. The end portions of the connection elements (3a . . . 3k) define a plane which extends parallel to a plane defined by the end portions of the detainers (4a . . . 4j).
Abstract:
An X-ray diagnostic apparatus has at least one beam transmitter which emits an X-ray beam acquired by at least one solid-state detector with image points arranged in the form of a matrix, and at least one correction unit that acquires the image signals, produced by the solid-state detector, of the current bright image exposure of a subject to be examined, and acquires the any afterglow signals which may be present from at least one dark image exposure. The correction unit controls the beam transmitter dependent on the presence of afterglow signals and/or the intensity of the afterglow signals, and, if necessary, corrects the image signals of the current bright image exposure.
Abstract:
A hydraulic proportional action valve apparatus includes a throttle valve, and a pressure balance which permits adjustment of the pressure difference between a supply pressure and a consumer pressure. The pressure balance, which may be provided with a spring, is hydraulically supported. A supporting assembly, which is provided for this purpose, is biased by a constantly controllable pressure-regulating valve. The control of the pressure-regulating valve may occur as a function of hydraulic parameter, such as, for example, the load pressure or the pilot pressure of the throttle valve.