公开(公告)号：US06181774B2

公开(公告)日：2001-01-30

申请号：US09316782

申请日：1999-05-21

申请人： Menno W. J. Prins ,  Jacobus B. Giesbers ,  Johannes W. Weekamp ,  Theodorus J. A. M. Jans ,  Wilhelmus J. J. Welters ,  Nicolaas P. Willard

发明人： Menno W. J. Prins ,  Jacobus B. Giesbers ,  Johannes W. Weekamp ,  Theodorus J. A. M. Jans ,  Wilhelmus J. J. Welters ,  Nicolaas P. Willard

IPC分类号： G21K300

CPC分类号： B29D99/0089 ,  B29C37/0075 ,  G21K1/10

摘要： An X-ray examination apparatus of this invention comprises an X-ray source, an X-ray detector and an X-ray filter which is located between the X-ray source and the X-ray detector. The X-ray filter includes filter elements, notably capillary tubes, and the X-ray absorption of separate filter elements can be controlled by controlling a quantity of X-ray absorbing liquid in the respective filter elements. The quantity of X-ray absorbing liquid in the individual filter elements is controlled by way of electric voltages applied to the individual filter elements. The filter elements are formed as spaces between deformed foils which are arranged in a stack which is expanded in the direction transversely of the foils. Adjacent foils are locally attached to one another along seams. The stack is arranged between rigid plates and buffer elements are provided between the rigid plates and the stack. The buffer elements are contractable in the direction transversely to the direction of expansion of the stack. The shape of the cross-section of the capillary tubes is dependent on the ratio of the width of the seams to the spacing of the seams.

摘要翻译： 本发明的X射线检查装置包括位于X射线源和X射线检测器之间的X射线源，X射线检测器和X射线滤波器。 X射线过滤器包括过滤元件，特别是毛细管，并且可以通过控制各个过滤器元件中的X射线吸收液体的量来控制单独的过滤器元件的X射线吸收。 各个过滤元件中的X射线吸收液体的量通过施加到各个过滤器元件的电压来控制。过滤元件形成为在横向方向上膨胀的堆叠中布置的变形箔之间的空间 的箔。 相邻的箔片沿着接缝局部附着在一起。 堆叠布置在刚性板之间，缓冲元件设置在刚性板和堆叠之间。 缓冲元件可沿横向于堆叠的膨胀方向收缩。 毛细管横截面的形状取决于接缝宽度与接缝间距的比例。