公开(公告)号：US20210151275A1

公开(公告)日：2021-05-20

申请号：US16623433

申请日：2018-06-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： ROLF KARL OTTO BEHLING ,  TOBIAS SCHLENK ,  THORBEN REPENNING

IPC: H01J35/16 ,  H05G1/54

Abstract: The invention proposes an insulator within an X-ray tube having a vacuum side and an ambient side and a feedthrough substantially coinciding with an axis of symmetry at the vacuum side and an axis of symmetry at the ambient side. The axis of symmetry at the vacuum side and the axis of symmetry at the ambient side have an angle of at least 5°, preferably 90°, with respect to each other. An X-ray source comprising such an insulator is presented as well and the present invention also extends to a medical imaging apparatus for generating X-ray images of a patient thereby using an X-ray source with such an insulator. In an embodiment, an X-ray source is provided wherein the insulator is plugged to an electrical connector at the ambient surface.

公开(公告)号：US20190159742A1

公开(公告)日：2019-05-30

申请号：US16309956

申请日：2017-06-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： ROLF KARL OTTO BEHLING

IPC: A61B6/00

Abstract: The present invention relates to an apparatus (10) for imaging an object. It is described to position (210) an X-ray detector relative to at least one X-ray source such that at least a part of a region between the at least one X-ray source and the X-ray detector is an examination region for accommodating an object. In a first mode of operation, with the at least one X-ray source a first focal spot is produced (220), such that at least some first X-rays produced at the first focal spot pass through a first grating of an interferometer arrangement, the first grating positioned at a first position, and such that the at least some first X-rays pass through a second grating of the interferometer arrangement, the second grating positioned at a second position. In the first mode of operation, the at least some first X-rays are detected (230) with the X-ray detector at a detector position. In a second mode of operation, with the at least one X-ray source a second focal spot is produced (240), such that at least some second X-rays produced at the second focal spot avoid the first grating at the first position. In the second mode of operation, the at least some second X-rays are detected (250) with the X-ray detector at the detector position.

公开(公告)号：US20160338653A1

公开(公告)日：2016-11-24

申请号：US15111382

申请日：2015-01-06

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： ROLF KARL OTTO BEHLING ,  PETRUS JOHANNES WITHAGEN

IPC: A61B6/00

CPC classification number: A61B6/4035

Abstract: An X-ray emitting device (200) with an attenuating element (1) for an X-ray imaging device (100) is proposed. The attenuating element comprises a perforated sheet (3) of strongly X-ray absorbing material such as e.g. tungsten or molybdenum with a sheet thickness of e.g. less than 1 mm. The sheet (3) comprises multiple pinhole openings (5). Therein, a density of pinhole openings is higher at a center region of the sheet than at border regions of the sheet. Accordingly, a transparency to X-rays is higher at the center region than at the border regions. The pinhole openings (5) have geometries such that most parts of contours of the pinhole openings are non-parallel to edges of a focal spot (15) of an X-ray source (101) comprised in the X-ray emitting device. For example, the pinhole openings may have a circular, oval or any other cross-sectional geometry with non- linear edges. In an X-ray imaging device, such attenuating element may avoid beam hardening, needs less space than a conventional bow tie filter and is relatively insensitive to focal spot shifts.

Abstract translation: 提出了具有用于X射线成像装置（100）的衰减元件（1）的X射线发射装置（200）。 衰减元件包括强X射线吸收材料的穿孔片（3） 钨或钼，具有例如片状的厚度。 小于1毫米。 片材（3）包括多个针孔（5）。 其中，在片材的中心区域处的针孔开口的密度高于片材的边界区域。 因此，中心区域的X射线透明度高于边界区域。 针孔开口（5）具有几何形状，使得针孔开口的轮廓的大部分部分不平行于包含在X射线发射装置中的X射线源（101）的焦点（15）的边缘。 例如，针孔开口可以具有圆形，椭圆形或具有非线性边缘的任何其它横截面几何形状。 在X射线成像装置中，这种衰减元件可以避免光束硬化，比常规的蝴蝶结过滤器需要更少的空间，并且对焦点偏移相对不敏感。

公开(公告)号：US20160183907A1

公开(公告)日：2016-06-30

申请号：US14911745

申请日：2014-08-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： ROLF KARL OTTO BEHLING

IPC: A61B6/00 ,  H01J35/18 ,  H01J35/10

CPC classification number: A61B6/585 ,  A61B6/0407 ,  A61B6/4035 ,  A61B6/4266 ,  A61B6/4441 ,  A61B6/4464 ,  A61B6/54 ,  A61B6/586 ,  H01J35/00 ,  H01J35/10 ,  H01J35/18 ,  H05G1/46

Abstract: Rotating anode X-ray tubes degrade over time because of the action of the electron beam altering the surface of the focal spot area of a rotating anode. This causes a degradation in a resulting object image, when the source is used in an imaging application. An X-ray tube housing assembly is discussed which allows the correction of such effects. In particular, an additional beam of the X-radiation, which is not used for imaging, may be used to correct such effects.

Abstract translation: 旋转阳极X射线管由于电子束的作用改变旋转阳极的焦点区域的表面而随时间而降解。 当在成像应用中使用源时，这导致所得到的对象图像的劣化。 讨论了允许校正这种效果的X射线管壳体组件。 特别地，可以使用不用于成像的X射线的附加束来校正这种影响。