Abstract: The present invention relates to an arrangement for adjusting a number of settings in an x-ray imaging apparatus (10) for recurrent mammography examinations, said apparatus comprising at least one x-ray source (11), a collimator arrangement (12) and compression pedals (13a, 13b) for positioning and compressing the breast (14) of a patient to be examined. The arrangement comprises: control units (16-19) for adjusting said number of settings of said x-ray imaging apparatus based on an identity of said person to be examined and data stored in a database (21), said data including a set of setting-data from at least one recent x-ray examination of said patient, a main control unit (15) communicating with a control unit (16) for adjusting characteristics of x-ray radiations from said x-ray source (11), a control unit (17) for adjusting the position of said x-ray source (11) and an identity input device (20).

Abstract: The present invention refers to a refractive arrangement for X-rays, and specially to a lens comprising: a member of low-Z material, said member of low-Z material having a first end adapted to receive x-rays emitted from an x-ray source and a second end from which emerge said x-rays received at said first end. It further comprises a plurality of substantially saw-tooth formed grooves disposed between said first and second ends, said plurality of grooves oriented such that said x-rays which are received at said first end, pass through said member of low-Z material and said plurality of grooves, and emerge from said second end, are refracted to a focal point.

Abstract: A method an arrangement in an x-ray imaging apparatus (10), includes at least one x-ray source (11), a collimator (42, 52, 62a, 62b, 72) and a detcetor (43, 73); the arrangement is arranged for providing a variable exposure of the dector (43, 73) to x-ray radiation from the x-ray source (10) through slots (45, 55, 65a, 65b, 75) on the collimator (42, 52, 62a, 62b, 72). The arrangement comprises at least one of the collimator (42, 52, 62a, 62b, 72) or registering means (43, 73), which are arranged moveable relative each other to vary number of x-rays registered by the dector.

Abstract: The present invention relates a method of enhancing contrast information from an x-ray detecting arrangement, when detecting a number of photons in said arrangement comprising at least two adjacently arranged sensors provided on one substrate, each sensor having a corresponding output signal, each of which can be influenced due to shared charge from a photon detected in one of said adjacent sensors, which detected photon indirectly creates an amount of free charges proportional to the photon energy, wherein said influence on said signal is considered by weighting said photon with respect to possible said photon charge-share between said at least two adjacent sensors.

Abstract: The invention relates to a scanned-slot x-ray imaging system, having a first collimator and a second collimator arranged in a first distance (a) and a second distance (b), respectively, from a radiation source and each provided with a slot and a detector located under the second collimator slot, said slot of said second collimator being wider than the said slot of said first collimator and said detector under the second slot is wider than the first collimator slot and the second collimator slot. The slot of said second collimator has a width (y′) not less than a safety margin and the product of the width (x) of the slot of said first collimator and said second distance (b) divided with the said first distance (a) for allowing a misalignment with respect to a central symmetry line of said slots.