公开(公告)号：US5666396A

公开(公告)日：1997-09-09

申请号：US679036

申请日：1996-07-12

申请人： Petrus W. J. Linders ,  Christianus G.L.M. Nederpelt

发明人： Petrus W. J. Linders ,  Christianus G.L.M. Nederpelt

IPC分类号： G01N23/04 ,  A61B6/00 ,  G21K1/10 ,  G21K3/00

CPC分类号： G21K1/10

摘要： An X-ray examination apparatus in accordance with the invention includes a filter (4) for limiting the dynamic range of an X-ray image which is formed on an X-ray detector (4) by irradiation of an object (3), for example a patient to be examined, by means of X-rays (15). The filter (4) includes filter elements (5), being capillary tubes (5), one end of which communicates with an X-ray absorbing liquid. The adhesion of the X-ray absorbing liquid to the inner side of the capillary tubes is adjustable by means of an electric voltage which can be applied to an electrically conductive layer (36) provided on the inner side of the capillary tubes (5). The filling of the capillary tubes (5) with the X-ray absorbing liquid is adjusted on the basis of the period of time during which the electric voltage is applied. This period of time can be subdivided into a number of fractions and individual rows of capillary tubes are then filled with the X-ray absorbing liquid partly in parallel.

摘要翻译： 根据本发明的X射线检查装置包括：滤光器（4），用于通过对象（3）的照射来限制在X射线检测器（4）上形成的X射线图像的动态范围，用于 例如通过X射线检查的患者（15）。 过滤器（4）包括过滤器元件（5），其是毛细管（5），其一端与X射线吸收液体连通。 通过可以施加到设置在毛细管（5）的内侧上的导电层（36）的电压来调节X射线吸收液体到毛细管内侧的粘附。 基于施加电压的时间段来调整毛细管（5）与X射线吸收液的填充。 这段时间可以细分成多个部分，然后将各行毛细管部分地并入X射线吸收液中。