-
公开(公告)号：EP2205155A4
公开(公告)日：2011-07-27
申请号：EP08805471
申请日：2008-10-03
申请人： PLANMED OY
发明人： STROEMMER PEKKA
CPC分类号： A61B6/502
-
公开(公告)号：EP1693856A2
公开(公告)日：2006-08-23
申请号：EP06250691.0
申请日：2006-02-09
发明人： Yuan, Ping , Cao, Diansong , Li, Yuqing
CPC分类号： G21K1/10
摘要： In order to realize a filter (16) that can make a fine spectrum adjustment in a wide rage and can be miniaturized, and to realize an X-ray imaging apparatus provided with the filter (16), a filter (16) of the present invention is provided with plural filter plates (161 - 166) that can form a layer crossing X-ray and adjusting means that adjusts a combination of filter plates (161 - 166) forming the layer by individually moving the plural filter plates (161 - 166) so as to come in and out the X-ray passing space. The plural filter plates (161 - 166) are formed such that the thickness of each filter plate (161 - 166) is successively doubled with the thinnest filter plate defined as a reference. The adjusting means has a pair of moving in/out mechanisms for moving, every its half number, the plural filter plates in and out from both sides of the X-ray passing space.
摘要翻译： 为了实现能够进行宽范围的精细光谱调整并且可以小型化的滤光器（16），并且为了实现设置有滤光器（16）的X射线成像装置，本发明的滤光器（16） 本发明提供有多个过滤板（161-166），其可以形成穿过X射线的层和调节装置，该调节装置通过单独移动多个过滤板（161-166）调节形成该层的过滤板（161-166）的组合 ），以便进出X射线通过空间。 多个过滤板（161-166）形成为使得每个过滤板（161-166）的厚度被连续地加倍，最薄的过滤板被定义为参考。 调节装置具有一对移动进/出机构，用于每半个数个多个滤板进入和移出X射线通过空间的两侧。
-
公开(公告)号：EP1582148A1
公开(公告)日：2005-10-05
申请号：EP05101998.2
申请日：2005-03-15
发明人： Bernhardt, Philipp
CPC分类号： A61B6/4042 , A61B6/502
摘要： Die Erfindung betrifft eine Röntgenvorrichtung für die Mammographie, mit einer eine aus Wolfram hergestellte Anode aufweisenden Röntgenröhre, einem in Strahlrichtung der Röntgenröhre nachgeordneten Filter und einem dem Filter nachgeordneten, aus einem halbleitenden Material hergestellten Detektor. Zur Verbesserung der Qualität mammographischer Röntgenaufnahmen sowie zur gleichzeitigen Reduzierung der Strahlendosis wird erfindungsgemäß vorgeschlagen, dass das Filter aus einem Filtermaterial hergestellt ist, dessen K-Absorptionskante im Bereich zwischen 3,8 keV und 7,3 keV liegt.
摘要翻译： 该装置具有在X射线管的射线方向上形成的X射线管和从属过滤器的阳极，其中阳极由钨制成。 滤波器中的检测器由例如半导体材料制成。 硒。 过滤器由K吸收边缘在3.8千伏电压和7.3千伏电压（keV）之间的范围内的过滤材料制成，厚度范围为0.05-1毫米。
-
公开(公告)号：EP0826220B1
公开(公告)日：2002-05-29
申请号：EP97901213.5
申请日：1997-02-07
IPC分类号： G21K3/00
CPC分类号： G21K1/10
摘要： The X-ray examination apparatus comprises an X-ray filter for locally attenuating the X-ray beam. The X-ray filter includes a plurality of filter elements. The X-ray absorptivity of each filter element is controlled by the amount of X-ray absorbing liquid with which the filter element is filled. The filling of filter elements is controlled by a voltage. The X-ray absorbing liquid contains a suspension of very small X-ray absorbing particles.
摘要翻译： X射线检查设备包括用于局部地衰减X射线束的X射线滤波器。 该X射线滤波器包括多个滤波器元件。 每个过滤器元件的X射线吸收率由填充过滤器元件的X射线吸收液的量来控制。 过滤元件的填充由电压控制。 X射线吸收液含有非常小的X射线吸收颗粒的悬浮液。
-
公开(公告)号：EP1119864A1
公开(公告)日：2001-08-01
申请号：EP99953008.2
申请日：1999-09-30
IPC分类号： G21K3/00
CPC分类号： G21K1/10
摘要： An x-ray beam hardening filter (100) is disclosed. The X-ray beam hardening filter (100) comprises a support member (110) and a beam hardening sheet (120), the beam hardening sheet (120) having a multidimensional array of regularly spaced apertures (130). The apertures (130) are configured to have an x-ray transmissive quality. An actuator (300), engaging the support member (110), is capable of moving the multidimensional array of apertures (130) into or out of a path of an X-ray beam, thereby selectively introducing varying levels of X-ray energy filtration. In one embodiment, multiple layers of beam hardening sheets (610, 620) are added to the X-ray beam hardening filter (100) to create additional levels of X-ray energy filtration. Advantages of the X-ray beam hardening filter (100) include the relatively small distance the X-ray beam hardening filter (100) must move in order to absorb the incident X-ray beam, the ability to introduce varying levels of X-ray filtration, and the compact structure of the X-ray beam hardening filter (100).
-
46.发明授权Filterverfahren für ein Röntgensystem und Anordnung zur Durchführung eines solchen Filterverfahrens 失效用于X射线系统和组件，用于执行这样的过滤方法过滤方法
-
47.发明公开K-FILTER FOR SERIAL HIGH-SPEED ROTATOGRAPHY, AND APPARATUS FOR THE ROTATOGRAPHY. 失效K-过滤器和设备。串行旋转的X拍摄高速。
公开(公告)号：EP0641544A4
公开(公告)日：1995-05-24
申请号：EP93910390
申请日：1993-05-25
发明人： KUMAZAKI TATSUO , YAMADA HIFUMI
摘要： A K-filter (1) is the one attached to an apparatus for serial high-speed rotatography for photographing a specimen by use of X rays. The filter comprises two K-containers (5a and 5b) in which a space is defined for fluidly containing a fluid substance transmitting no radiation, and a radiation permeable region (2) formed between the two K-containers (5a and 5b). The K-containers (5a and 5b) are pivotally supported by a supporting member (1a) and are of an inversion type which allows the radiation permeable region sides of the K-containers to move. Therefore, when this apparatus is rotated at a high speed to more than 180 DEG , it is possible to conduct filtering under any conditions such as an inclined posture, not the horizontal posture, under which potographing is started.
-
48.发明授权
公开(公告)号：EP0292055B1
公开(公告)日：1992-04-08
申请号：EP88200941.8
申请日：1988-05-11
CPC分类号： H01J35/06 , H01J35/02 , H01J35/04 , H01J35/08 , H01J35/18 , H01J2235/087 , H01J2235/168 , H01J2235/186
-
公开(公告)号：EP0356488A4
公开(公告)日：1991-09-25
申请号：EP89902441
申请日：1989-01-27
CPC分类号： G21K1/10
摘要： In accordance with the present invention, there is provided an X-ray filter which significantly reduces low energy radiation normally absorbed by the examination object without significantly affecting the desired high energy radiation. The filter is comprised of one or more materials (12) containing as the major component elements selected from the group consisting of aluminum and elements having atomic number between 26 and 50 with the filter being selected to have X-ray filtering characteristics such that the intensity of X-rays having energies of 50 keV are reduced by about 8 % to about 35 % of the normal radiation levels. As a result of the construction immediately above, the filter of the present invention filters energy from the X-ray beam which is usually absorbed by the examination object and does not contribute to the radiographic image of the examination object. This is achieved with little, if any, increased loading of the X-ray tube which would otherwise reduce its effective life.
-
公开(公告)号：EP0334815A1
公开(公告)日：1989-09-27
申请号：EP89810223.1
申请日：1989-03-21
申请人： PROGAM S.A.
发明人： Curchod, Jacques
CPC分类号： H05K9/009 , A61N1/16 , G21K1/10 , H01Q15/0013
摘要： Le filtre contre les radiations est constitué par un treilli (10), en fil d'or, d'argent ou de cuivre de 0,1 mm, s'étendant dans un espace à trois dimensions.
Ce fil forme des figures géométriques à deux dimensions, en l'occurence des rectangles (11).
L'ensemble de ces figures constitue un réseau conducteur d'électricité que l'on peut charger électriquement ou mettre à terre par l'intermédiaire de deux bornes non représentées.摘要翻译： 辐射过滤器由在三维空间中延伸的由0.1mm金，银或铜线制成的网格（10）组成。 在这种情况下，该线形成二维几何图形，矩形（11）。 这些图形的组合形成导电网络，其可以通过未示出的两个端子电或电接地充电。
-
-
-
-
-
-
-
-
-
搜索结果
72 条记录 (耗时 0.022 秒)
