专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6118125A Method and a device for planar beam radiography and a radiation detector 失效
标题翻译：方法和用于平面射线照相和辐射探测器的装置
公开(公告)号：US6118125A
公开(公告)日：2000-09-12
申请号：US969554
申请日：1997-11-13
申请人： Per Carlson , Tom Francke , Alexandre Vaniachine , Vladimir Ivotchkine
发明人： Per Carlson , Tom Francke , Alexandre Vaniachine , Vladimir Ivotchkine
IPC分类号： A61B6/00 , G01T1/185 , H05G1/64 , H01J47/02
CPC分类号： G01T1/185 , H05G1/64
摘要： A method and apparatus for radiography, and especially for planar beam radiography, and also a detector for detecting incident radiation. In the method and the apparatus, wherein X-rays are emitted from an X-ray source, the X-rays are formed into a planar beam and are transmitted through an object to be imaged, and the X-rays transmitted through said object are detected in a detector. The detector, which detects incident radiation is a gaseous parallel plate avalanche chamber, including electrode arrangements between which a voltage is applied for creating an electrical field, which causes electron-ion avalanches of primary and secondary ionization electrons released by incident radiation. The detector is oriented, in relation to the incident radiation, so that the radiation enters sideways between a first and a second parallel plate, between which the electrical field is created. Electrical signals induced by said electron-ion avalanches are detected in at least one detector electrode arrangement, including a plurality of detector electrode elements arranged adjacent to each other, each along a direction being essentially parallel to the incident radiation. Pulses from each detector electrode element are processed in processing electronics, for obtaining values for each pixel corresponding to the respective detector electrode element.
摘要翻译：一种用于放射线照相术，特别是用于平面射线照相术的方法和装置，以及用于检测入射辐射的检测器。在从X射线源发射X射线的方法和装置中，X射线被形成为平面光束，并被透射通过待成像的物体，并且通过所述物体透射的X射线为在检测器中检测。检测入射辐射的检测器是气体平行板雪崩室，其包括施加电压以产生电场的电极布置，其引起由入射辐射释放的初级和次级电离电子的电子 - 离子雪崩。检测器相对于入射辐射定向，使得辐射在第一和第二平行板之间横向进入，在其间产生电场。在至少一个检测器电极装置中检测由所述电子离子雪崩引起的电信号，包括彼此相邻布置的多个检测器电极元件，每个检测器电极元件沿着基本上平行于入射辐射的方向。来自每个检测器电极元件的脉冲在处理电子器件中被处理，以获得对应于各个检测器电极元件的每个像素的值。

2. 发明申请

US20050226367A1 Arrangement and method for obtaining tomosynthesis data 有权
标题翻译：获取断层数据的方法和方法
公开(公告)号：US20050226367A1
公开(公告)日：2005-10-13
申请号：US10849209
申请日：2004-05-20
申请人： Tom Francke
发明人： Tom Francke
IPC分类号： A61B20060101 , A61B6/00 , A61B6/02 , A61B6/03 , A61B6/14 , G01N23/00 , G01N23/04 , G01T1/00 , G21K1/12 , H05G1/60
CPC分类号： A61B6/4429 , A61B6/02 , G01N23/044 , G01N2223/419 , G01N2223/612
摘要： A scanning-based arrangement for obtaining tomosynthesis data of an object (5) at high repetition rate comprises a support structure (11); scanning-based apparatuses (10) fixedly arranged on the support structure and each including (i) radiation source (1), and (ii) a radiation detector (6) comprising a stack of line detectors (6a), each being directed towards the radiation source to allow a ray bundle (b1, . . . , bn, . . . , bN) of radiation that propagates in a respective one of various different angles (α1, . . . , αn, . . . , αN) to enter the line detector; an object table (13) arranged in the radiation path of one of the scanning-based apparatuses; and a device (14) provided for rotating the support structure relative the object table so that the object table will successively be arranged in the radiation path of each of the scanning-based apparatuses, during which rotation each of the line detectors of each of the scanning-based apparatuses is adapted to record a plurality of line images of radiation as transmitted through the object.
摘要翻译：用于以高重复率获得物体（5）的体层合成数据的基于扫描的布置包括支撑结构（11）; 固定地布置在支撑结构上的基于扫描的装置（10），每个包括（i）辐射源（1），和（ii）包括一叠线检测器（6a）的辐射检测器（6）所述辐射源允许在各种各样的辐射源中传播的辐射束（b 1，...，b N n，...，b N N N）不同的角度（α1，...，αn N），...，αN N）进入线检测器; 布置在所述基于扫描的装置之一的辐射路径中的物体表（13）以及设备，用于使所述支撑结构相对于所述对象台旋转，使得所述对象表将依次布置在每个所述基于扫描的设备的辐射路径中，在所述辐射路径期间，每个所述线检测器基于扫描的装置适于记录通过对象传输的多个辐射线图像。

3. 发明授权

US06873682B2 Exposure control in scanning-based detection of ionizing radiation 有权
标题翻译：电离辐射扫描检测中的曝光控制
公开(公告)号：US06873682B2
公开(公告)日：2005-03-29
申请号：US10754698
申请日：2004-01-12
申请人： Tom Francke , Stefan Thunberg
发明人： Tom Francke , Stefan Thunberg
IPC分类号： G21K1/02 , A61B6/00 , A61B6/03 , G01T1/18 , G01T7/00 , G21K1/04 , G21K5/02 , H05G1/44 , H05G1/38
CPC分类号： A61B6/502 , A61B6/032 , A61B6/488 , A61B6/542 , A61B6/544
摘要： An apparatus for recording a 2D image of an object comprises a plurality of 1D detector units, each exposed to ionizing radiation, as transmitted through or scattered off the object, and being arranged for 1D imaging of the radiation, to which it is exposed. The detector units are distributed in an array such that the 1D images of the radiation from the detector units are distributed over a substantial portion of the 2D image. The apparatus includes a device for moving the detector units relative the object while the detector units repeatedly detect to create the 2D image of the object; and a control device for controlling the detector units to detect ionizing radiation during a short period of time before or during an initial part of the movement; calculating an optimum exposure time for the repeated detection based on the short period of time detection; and controlling the repeated detection to automatically obtain the optimum exposure time.
摘要翻译：用于记录对象的2D图像的设备包括多个1D检测器单元，每个1D检测器单元暴露于电离辐射，透射通过或散射离开物体，并且被布置成用于对其进行曝光的辐射的1D成像。检测器单元分布在阵列中，使得来自检测器单元的辐射的1D图像分布在2D图像的大部分上。该装置包括用于在检测器单元重复检测以产生对象的2D图像的同时相对于物体移动检测器单元的装置; 以及控制装置，用于控制检测器单元在运动的初始部分之前或期间的短时间段内检测电离辐射; 基于短时间检测计算重复检测的最佳曝光时间; 并控制重复检测以自动获得最佳曝光时间。

4. 发明授权

US06818901B2 Gaseous-based radiation detector 失效
标题翻译：基于气体的辐射探测器
公开(公告)号：US06818901B2
公开(公告)日：2004-11-16
申请号：US09985443
申请日：2001-11-02
申请人： Tom Francke , Christer Ullberg , Juha Rantanen
发明人： Tom Francke , Christer Ullberg , Juha Rantanen
IPC分类号： G01T1185
CPC分类号： G01T1/185
摘要： A radiation detector comprises two electrode arrangements, each including a dielectric substrate and an electrically conducting layer formed on a first surface of respective dielectric substrate, wherein the electrodes are oriented such that the conducting layers are facing each other. A dielectric spacer is provided to hold the electrodes at a distance from each other to thereby define an inter-electrode space, which, during use, is filled with an ionizable gas. The electrodes are held at respective electric potentials to drift electrons released during ionization of the ionizable gas by external radiation towards one of the electrodes for detection. To suppress the occurrence of sparks in the inter-electrode space an electrically conducting layer is formed on a second surface of the dielectric substrate of either one of the electrodes, and, during use, held at a selected electric potential held at a selected electric potential to thereby reduce the risk for occurrence of sparks between the cathode and anode arrangements.
摘要翻译：辐射检测器包括两个电极布置，每个电极布置包括电介质基板和形成在各个电介质基板的第一表面上的导电层，其中电极被定向成使得导电层彼此面对。提供介电间隔物以将电极彼此保持一定距离，从而限定电极间隙，在使用过程中，电极间填充有可电离气体。电极被保持在相应的电位，以便通过外部辐射将可电离气体电离期间释放的电子漂移到用于检测的电极之一中。为了抑制电极间空间中的火花的发生，导电层形成在电极中的任一个的电介质基板的第二表面上，并且在使用期间保持在选定的电位的选定电位从而降低在阴极和阳极布置之间发生火花的风险。

5. 发明授权

US06795527B2 Apparatus and method for detection of radiation 有权
标题翻译：用于检测辐射的装置和方法
公开(公告)号：US06795527B2
公开(公告)日：2004-09-21
申请号：US10127561
申请日：2002-04-23
申请人： Tom Francke
发明人： Tom Francke
IPC分类号： G21K510
CPC分类号： G21K1/025
摘要： The present invention relates to an apparatus and a method for detection of radiation comprising at least a first collimator arranged to transmitted radiation through at least a first slit in a Z-direction and prevent radiation in said Z-direction apart from through said at least first slit. The invention further comprises at least a first array of at least two radiation detecting elements, that each of said radiation detecting elements having &agr; length a in an X-direction, where said X-direction is the direction of said array of radiation detecting elements, that each of said radiation detecting elements having a length &bgr; in a Y-direction, that said at least first slit, for letting through radiation in the Z-direction, has a length in said second X-direction which is at least as long as said array of radiation detecting elements, that said at least first slit has a length in said Y-direction which is substantially shorter than said length &bgr; of said radiation detecting elements, and displacement means arranged to move said collimator and/or said array of radiation detecting elements.
摘要翻译：本发明涉及一种用于检测辐射的装置和方法，所述装置和方法包括至少第一准直器，所述至少第一准直器布置成通过Z方向上的至少第一狭缝透射辐射，并且防止所述Z方向上的辐射远离所述至少第一狭缝本发明还包括至少两个辐射检测元件的第一阵列，每个所述辐射检测元件在X方向具有α长度a，其中所述X方向是所述辐射检测元件阵列的方向，每个所述辐射检测元件在Y方向上具有长度β，所述至少第一狭缝用于使Z方向上的辐射具有在所述第二X方向上的长度，其至少等于所述辐射检测元件的阵列，所述至少第一狭缝具有在所述Y方向上的长度，其比所述辐射检测元件的所述长度β短得多;以及位移装置，被布置成移动所述准直器和/或所述辐射阵列检测元件。

6. 发明授权

US06784436B2 Radiation detector arrangement 有权
标题翻译：辐射检测装置
公开(公告)号：US06784436B2
公开(公告)日：2004-08-31
申请号：US10124305
申请日：2002-04-18
申请人： Tom Francke
发明人： Tom Francke
IPC分类号： G01T1185
CPC分类号： G01T1/2935
摘要： A radiation detector arrangement for imaging of an object comprises multiple line detector units, each being arranged for one-dimensional imaging of the respective ray bundle. The detector units are arranged parallel in a two-dimensional array. The detector units are sited in rows and stacks, the rows being parallel with the detector unit and the stacks being orthogonal thereto, where the one-dimensional detector units in each row are together capable of detecting the object in one dimension. A device is provided for moving the detector units relative the object parallel with the stacks at least a distance corresponding to the distance between two adjacent detector units in the stacks.
摘要翻译：用于物体成像的放射线检测器装置包括多个线检测器单元，每个线检测器单元被布置用于各个射线束的一维成像。检测器单元以二维阵列平行布置。检测器单元位于行和堆叠中，行与检测器单元平行，并且堆叠与其正交，其中每行中的一维检测器单元能够一维地检测物体。提供了一种用于使检测器单元相对于物体平行于堆叠移动至少一个与堆叠中两个相邻检测器单元之间的距离相对应的距离的装置。

7. 发明授权

US06373065B1 Radiation detector and an apparatus for use in planar beam radiography 失效
标题翻译：辐射检测器和用于平面射线照相术的设备
公开(公告)号：US06373065B1
公开(公告)日：2002-04-16
申请号：US09443292
申请日：1999-11-19
申请人： Tom Francke , Vladimir Peskov , Christer Ullberg
发明人： Tom Francke , Vladimir Peskov , Christer Ullberg
IPC分类号： H01J4708
CPC分类号： G21K1/025 , H01J47/02
摘要： A detector (64) for detection of ionizing radiation, and an apparatus for use in planar beam radiography, including the detector (64). The detector (64) includes a chamber filled with an ionizable gas; first and second electrode arrangements (2, 1, 18, 19) provided in the chamber with a space between them, the space including a conversion volume (13); an electron avalanche amplification unit (17) arranged in the chamber; and, at least one arrangement of read-out elements (15) for detecting of electron avalanches. A radiation entrance is provided so that radiation enters the conversion volume between the first and second electrode arrangements. In order to achieve detectors which are simple to stack with each other, the first and second electrode arrangements exhibit a first and a second main plane, said planes being non-parallel. This permits stacked detectors to be manufactured simply and cost effectively.
摘要翻译：用于检测电离辐射的检测器（64），以及包括检测器（64）在内的用于平面射线射线照相的装置。检测器（64）包括填充有可电离气体的室; 第一和第二电极布置（2,1,18,19）设置在腔室中，在它们之间具有空间，该空间包括转换体积（13）; 设置在所述室中的电子雪崩放大单元（17）以及用于检测电子雪崩的读出元件（15）的至少一种布置。提供辐射入口，使得辐射进入第一和第二电极装置之间的转换体积。为了实现彼此易于堆叠的检测器，第一和第二电极布置呈现第一和第二主平面，所述平面不平行。这样可以简便且成本有效地制造叠层式检测器。

8. 发明授权

US06333506B1 X-ray detector unit with solid converter 失效
标题翻译：具有固体转换器的X射线探测器
公开(公告)号：US06333506B1
公开(公告)日：2001-12-25
申请号：US09443294
申请日：1999-11-19
申请人： Tom Francke , Vladimir Peskov
发明人： Tom Francke , Vladimir Peskov
IPC分类号： H01J4700
CPC分类号： H01J47/008 , G01T1/28 , H01J31/50 , H01J2231/50036
摘要： A detector unit for two-dimensional detection of incoming radiation from an X-ray source, primarily for use in X-ray radiography. The unit includes a solid material structure (2) having a plurality of passages (6) extending therein and comprising surface portions (7) comprising a conversion medium. The surface portions of the passages are inclined, so that the incoming radiation impinges at an acute angle onto the surface portions. In this way, the efficiency of the detector and the positional resolution are improved.
摘要翻译：用于二维检测来自X射线源的入射辐射的检测器单元，主要用于X射线照相。该单元包括具有在其中延伸的多个通道（6）的固体材料结构（2），并且包括包含转化介质的表面部分（7）。通道的表面部分是倾斜的，使得入射的辐射以锐角照射到表面部分上。以这种方式，提高了检测器的效率和位置分辨率。

9. 发明授权

US08184875B2 Method for creating, displaying, and analyzing X-ray images and apparatus implementing the method 有权
标题翻译：用于创建，显示和分析X射线图像的方法和实现该方法的装置
公开(公告)号：US08184875B2
公开(公告)日：2012-05-22
申请号：US11907474
申请日：2007-10-12
申请人： Tom Francke , Christer Ullberg
发明人： Tom Francke , Christer Ullberg
IPC分类号： G06K9/00
CPC分类号： G06K9/20 , A61B6/502
摘要： A method for creating, displaying, and analyzing X-ray images of a plurality of objects is disclosed. The method comprising, for each of the objects recording three-dimensional X-ray image data of the object in a single measurement; creating a three-dimensional X-ray image of the object from the three-dimensional X-ray image data; creating one or two two-dimensional X-ray images of the object from the three-dimensional X-ray image data; displaying the one or two two-dimensional X-ray images of the object; and analyzing the one or two two-dimensional X-ray images of the object. For a subset of the plurality of objects the three-dimensional X-ray image of the object is displayed, wherein the subset of the plurality of objects is determined based on the step of, for each of the objects, analyzing the one or two two-dimensional X-ray images of the object.
摘要翻译：公开了一种用于创建，显示和分析多个对象的X射线图像的方法。对于在一次测量中记录对象的三维X射线图像数据的每个对象，该方法包括：从所述三维X射线图像数据生成所述对象的三维X射线图像; 从所述三维X射线图像数据创建所述对象的一个或两个二维X射线图像; 显示物体的一个或两个二维X射线图像; 并分析对象的一个或两个二维X射线图像。对于多个对象的子集，显示对象的三维X射线图像，其中，基于对于每个对象来分析一个或两个两个对象的步骤来确定多个对象的子集物体的三维X射线图像。

10. 发明申请

US20090092226A1 Apparatus and method for recording radiation image data of an object 审中-公开
标题翻译：用于记录物体的辐射图像数据的装置和方法
公开(公告)号：US20090092226A1
公开(公告)日：2009-04-09
申请号：US11984146
申请日：2007-11-14
申请人： Skiff Sokolov , Christer Ullberg , Tom Francke
发明人： Skiff Sokolov , Christer Ullberg , Tom Francke
IPC分类号： G03C5/16
CPC分类号： G03B42/02 , A61B6/025 , A61B6/027 , A61B6/06 , A61B6/4035 , A61B6/4452 , A61B6/482 , G01T1/2985 , G01T7/00
摘要： An apparatus for recording radiation image data of an object comprises a radiation source arrangement provided for emitting radiation; an object holder arranged in the radiation path of the emitted radiation and provided for housing the object during the recordation of the radiation image data; a detector arrangement for detecting radiation which has interacted with the object; a support structure, to which the radiation source and detector arrangements are secured; and a scanning device provided for moving either one of the support structure or the object holder with respect to the other one of the support structure or the object holder in a conical pendulum movement while the detector arrangement is provided for detecting radiation which has interacted with the object.
摘要翻译：用于记录物体的放射线图像数据的装置包括：用于发射辐射的辐射源装置; 物体保持器，布置在所发射的辐射的辐射路径中，并且被设置用于在记录辐射图像数据期间容纳物体; 用于检测与物体相互作用的辐射的检测器装置; 支撑结构，辐射源和检测器布置被固定到该支撑结构上; 以及扫描装置，其被设置用于相对于所述支撑结构中的另一个或所述物体保持器以锥形摆动移动中的任一个移动，同时提供所述检测器装置用于检测与所述支撑结构或所述物体保持器相互作用的辐射目的。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式