Abstract: An X-ray device with an X-ray source to produce a beam of X-ray radiation, an X-ray detector to detect this radiation and an X-ray filter with filter elements which is positioned between the X-ray source and the X-ray detector to attenuate the X-ray beam in each independent filter element individually. Even filter element (213) can contain a fluid (32) which is electrically conducting and X-ray absorbing, which is supplied via a transport channel (30), whereas the value of the X-ray absorption of each filter element can discretely adjusted by a stepwise adjustment of the level of the fluid (32) within each filter element. Each filter element comprises a first electrode, which is located in the wall of the filter element and is segmented in the length direction of the filter element (213), the segments being electrically combined in tow subgroups (213, 124) in order to apply an electric potential to the wall segments of the filter element to achieve a step-wise filling of the inner volume (31) by fluid (32).

Abstract: An X-ray apparatus with an X-ray source for producing a beam of X-rays, an X-ray detector for detecting the beam, and an X-ray filter with filter elements. The X-ray filter is arranged between the X-ray source and the X-ray detector to attenuate the X-ray beam in each independent filter element individually. Each filter element can receive a liquid which is electrically conductive and X-ray absorbing, and is supplied via a transport channel, the X-ray absorptivity of each filter element being discretely adjustable by step-wise adjustment of the level of the liquid in each filter element. Each filter element includes a first electrode which is located in the wall of the filter element, on top of a substrate layer for applying an electric potential to the wall of the filter element. A second electric potential is applied to the liquid via a second electrode.

Abstract: An X-ray device with an X-ray source to produce a beam of X-ray radiation, an X-ray detector to detect this radiation and an X-ray filter with filter elements which is positioned between the X-ray source and the X-ray detector to attenuate the X-ray beam in each independent filter element individually. Every filter element (213) can contain a fluid (32) which is electrically conducting and X-ray absorbing, which is supplied via a transport channel (30), whereas the value of the X-ray absorption of each filter element can de discretely adjusted by a stepwise adjustment of the level of the fluid (32) within each filter element.

Abstract: An X-ray apparatus with an X-ray source for producing a beam of X-rays, an X-ray detector for detecting the beam, and an X-ray filter with filter elements which is arranged between the X-ray source and the X-ray detector so as to attenuate the X-ray beam in each independent filter element individually. Each filter element (13) can receive a liquid (22) which is electrically conductive and X-ray absorbing, and is supplied via a transport channel (20), the X-ray absorptivity of each filter element being discretely adjustable by step-wise adjustment of the level of the liquid (22) in each filter element. Each filter element includes a first electrode (23) which is located in the wall of the filter element, on top of a substrate layer (38), in order to apply an electric potential to the wall of the filter element. A second electric potential is applied to the liquid (22) via a second electrode (29).