公开(公告)号：US08378310B2

公开(公告)日：2013-02-19

申请号：US12707076

申请日：2010-02-17

申请人： Hans Bornefalk ,  Mats Danielsson ,  Christer Svensson

发明人： Hans Bornefalk ,  Mats Danielsson ,  Christer Svensson

IPC分类号： G01T1/24

CPC分类号： G06T11/005 ,  G01T1/171 ,  G01T1/24 ,  G06T2211/408

摘要： The current invention applies to photon counting silicon x-ray detectors with energy discriminating capabilities and applications in x-ray imaging systems. The overall image quality produced by such a system is improved by the presented novel methods for optimally using the energy information in Compton events and making selective use of counts induced from charges collected in neighboring pixels. The pile-up problem during high-flux imaging regimes is reduced by a novel method for signal reset, which improves the count efficiency by reducing the risk of losing event due to signal pile-up in the read out electronics chain.

摘要翻译： 本发明适用于具有能量鉴别能力和x射线成像系统中的应用的光子计数硅x射线检测器。 通过提出的用于最佳地使用康普顿事件中的能量信息的新颖方法并且选择性地使用从相邻像素中收集的电荷引起的计数来改善由这样的系统产生的整体图像质量。 高通量成像方案中的堆积问题通过一种用于信号复位的新颖方法来减少，通过降低由于读出的电子链中的信号堆积而导致的事件丢失的风险，提高了计数效率。

公开(公告)号：US20100215230A1

公开(公告)日：2010-08-26

申请号：US12707076

申请日：2010-02-17

申请人： Hans BORNEFALK ,  Mats Danielsson ,  Christer Svensson

发明人： Hans BORNEFALK ,  Mats Danielsson ,  Christer Svensson

IPC分类号： G06K9/40 ,  G01T1/24

CPC分类号： G06T11/005 ,  G01T1/171 ,  G01T1/24 ,  G06T2211/408

摘要： The current invention applies to photon counting silicon x-ray detectors with energy discriminating capabilities and applications in x-ray imaging systems. The overall image quality produced by such a system is improved by the presented novel methods for optimally using the energy information in Compton events and making selective use of counts induced from charges collected in neighboring pixels. The pile-up problem during high-flux imaging regimes is reduced by a novel method for signal reset, which improves the count efficiency by reducing the risk of losing event due to signal pile-up in the read out electronics chain.

摘要翻译： 本发明适用于具有能量鉴别能力和x射线成像系统中的应用的光子计数硅x射线检测器。 通过提出的用于最佳地使用康普顿事件中的能量信息的新颖方法并且选择性地使用从相邻像素中收集的电荷引起的计数来改善由这样的系统产生的整体图像质量。 高通量成像方案中的堆积问题通过一种用于信号复位的新颖方法来减少，通过降低由于读出的电子链中的信号堆积而导致的事件丢失的风险，提高了计数效率。

公开(公告)号：US20080169421A1

公开(公告)日：2008-07-17

申请号：US11984541

申请日：2007-11-19

申请人： Mats Danielsson

发明人： Mats Danielsson

IPC分类号： G01T1/24

CPC分类号： G01T1/1648

摘要： An imaging system is based on in-line x-ray optics arranged in combination with an X-ray detector to detect radiation from radio-labeled substances within an object to be imaged. This arrangement will provide a nuclear imaging device with potentially orders of magnitude higher resolution and efficiency and it will moreover be relatively easy to align and to produce and assemble in large quantities.

摘要翻译： 成像系统基于与X射线检测器组合布置的在线x射线光学器件，以检测待成像对象内的放射性标记物质的辐射。 这种布置将提供具有潜在数量级的分辨率和效率的核成像装置，并且还将相对容易地对准和大量生产和组装。

公开(公告)号：US07212605B2

公开(公告)日：2007-05-01

申请号：US09682540

申请日：2001-09-17

申请人： Mats Danielsson

发明人： Mats Danielsson

IPC分类号： A61B6/04

CPC分类号： G01T1/1644 ,  G01T1/2018 ,  G01T1/24

摘要： The present invention relates to an arrangement for detecting X-ray radiations comprising a carrying member on one face arranged with detectors consisting of a plurality of sensors arranged on a substrate. The detectors are arranged substantially edge to edge at lease in one row on at least one side of said carrying member.

摘要翻译： 本发明涉及一种用于检测X射线辐射的装置，其包括一个面上的承载构件，其布置有由布置在基底上的多个传感器组成的检测器。 检测器在所述承载构件的至少一侧上一排排地基本上边缘到边缘地布置。

公开(公告)号：US06878942B2

公开(公告)日：2005-04-12

申请号：US09682502

申请日：2001-09-10

申请人： Mats Danielsson

发明人： Mats Danielsson

IPC分类号： H01L31/115 ,  G01T1/24

CPC分类号： H01L31/115

摘要： The present invention relates to a method of detecting X-rays for obtaining improved radiographic images including a step of orienting a semiconductor radiation detector whose height is greater than its thickness. The orienting step comprises a selection of an acute angle between a direction of incident radiation and a side of said detector having said height such that said incident radiation mainly hit the side of said radiation detector. The hit area excludes at least a section between at least one edge of said detector and at least an active sensor area and that substantially all of the energy of the radiation is dissipated within the detector.

摘要翻译： 本发明涉及一种检测X射线以获得改进的射线照相图像的方法，包括使其高度大于其厚度的半导体辐射检测器的定向步骤。 定向步骤包括入射辐射方向与具有所述高度的所述检测器的侧面之间的锐角的选择，使得所述入射辐射主要撞击所述辐射探测器的侧面。 击打区域至少排除了所述检测器的至少一个边缘与至少一个有源传感器区域之间的部分，并且辐射的基本上所有的能量在检测器内消散。

公开(公告)号：US06621891B2

公开(公告)日：2003-09-16

申请号：US10201832

申请日：2002-07-23

申请人： Mats Danielsson

发明人： Mats Danielsson

IPC分类号： G21K104

CPC分类号： G21K1/04

摘要： A method an arrangement in an x-ray imaging apparatus (10), includes at least one x-ray source (11), a collimator (42, 52, 62a, 62b, 72) and a detcetor (43, 73); the arrangement is arranged for providing a variable exposure of the dector (43, 73) to x-ray radiation from the x-ray source (10) through slots (45, 55, 65a, 65b, 75) on the collimator (42, 52, 62a, 62b, 72). The arrangement comprises at least one of the collimator (42, 52, 62a, 62b, 72) or registering means (43, 73), which are arranged moveable relative each other to vary number of x-rays registered by the dector.

摘要翻译： 一种X射线成像设备（10）中的布置方法，包括至少一个x射线源（11），准直器（42,52,62a，62b，72）和检测器（43,43）; 该布置被布置成通过准直器（42）上的狭槽（45,55,65a，65b，75）提供切割器（43,73）对来自X射线源（10）的X射线辐射的可变曝光， 52,62a，62b，72）。 该装置包括准直器（42,52,62a，62b，72）或对准装置（43,47）中的至少一个，这些装置相对于彼此可移动地布置，以改变由切割器登记的X射线的数量。

公开(公告)号：US07664223B1

公开(公告)日：2010-02-16

申请号：US09683769

申请日：2002-02-12

申请人： Mats Danielsson ,  Theresa Lammroth ,  Lénnart Rapp

发明人： Mats Danielsson ,  Theresa Lammroth ,  Lénnart Rapp

IPC分类号： A61B6/04

CPC分类号： A61B6/06 ,  G21K1/02

摘要： A beam collimator arrangement for scanned-slot x-ray imaging having one or several collimators in an x-ray apparatus is disclosed. The beam collimator arrangement includes an x-ray source; an x-ray image receiver positioned to receive x-rays from the x-ray source; a compressor or means for compressing a female breast to be examined where the compressor is positionable between the x-ray source and the x-ray image receiver; and the beam collimator is positioned between the x-ray source and the compressor. The beam collimator arrangement is arranged on a carrying structure to displace the beam collimator arrangement between a first position when no x-ray exposure is conducted and a second position before x-ray exposure is initiated.

摘要翻译： 公开了一种用于在X射线设备中具有一个或多个准直仪的扫描槽x射线成像的射束准直器装置。 射束准直器装置包括一个x射线源; 定位成从X射线源接收x射线的x射线图像接收器; 压缩机或装置，用于在压缩机可定位在x射线源和x射线图像接收器之间的同时压缩待检查的雌性乳房; 并且射束准直器位于x射线源和压缩机之间。 射束准直器装置布置在承载结构上，以在不进行X射线曝光的第一位置和在X射线曝光开始之前的第二位置之间移动光束准直器装置。

公开(公告)号：US06586742B2

公开(公告)日：2003-07-01

申请号：US10090266

申请日：2002-03-01

申请人： Mats Danielsson

发明人： Mats Danielsson

IPC分类号： G01T700

CPC分类号： H01L27/14658 ,  H01L27/14623 ,  H01L27/14625

摘要： The present invention relates to a method and arrangement for detecting substantially the entire signal from a photon converting in a detector in an x-ray detecting arrangement (200, 300, 400), which results in charge-sharing, said arrangement comprising a number of spaced apart sensors (220, 320, 420), said detected photons indirectly creating an amount of free charges proportional to the photon energy. The method comprises the steps of arranging a blocking means (230, 330, 430) between said spaced apart sensors for stopping x-rays that will be incident close to edges of said sensors and will give rise to charge sharing between adjacent sensors. The blocking means comprises etched layers composed together to a blocking layer. The arrangement comprising said blocking means.

公开(公告)号：US07342233B2

公开(公告)日：2008-03-11

申请号：US11282547

申请日：2005-11-18

申请人： Mats Danielsson ,  Mats Lundqvist

发明人： Mats Danielsson ,  Mats Lundqvist

IPC分类号： G01T1/24 ,  H05G1/64

CPC分类号： G01T1/2928 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/502 ,  A61B6/583

摘要： An X-ray apparatus is provided for acquisition of images containing spectral information. An X-ray source and a collimator having multiple slits are operable together with a set of line detectors, the line detectors including linear arrays of photon counting channels. Each of the channels includes a photon conversion channel element which is operable to convert photons to electric pulses. A plurality of pulse counters are operable to count pulses in a plurality of different ranges of pulse strength, where the strength of a pulse depends on the energy of the photon. Further, an arrangement is included for an energy subtracting operation.

摘要翻译： 提供一种用于采集包含光谱信息的图像的X射线装置。 具有多个狭缝的X射线源和准直器与一组线检测器一起可操作，线检测器包括光子计数通道的线性阵列。 每个通道包括可操作以将光子转换成电脉冲的光子转换通道元件。 多个脉冲计数器可用于对多个不同的脉冲强度范围的脉冲进行计数，其中脉冲的强度取决于光子的能量。 此外，包括用于能量减去操作的布置。

公开(公告)号：US20070114424A1

公开(公告)日：2007-05-24

申请号：US11282547

申请日：2005-11-18

申请人： Mats Danielsson ,  Mats Lundqvist

发明人： Mats Danielsson ,  Mats Lundqvist

IPC分类号： G01T1/24

CPC分类号： G01T1/2928 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/502 ,  A61B6/583

摘要： An X-ray apparatus is provided for acquisition of images containing spectral information. An X-ray source and a collimator having multiple slits are operable together with a set of line detectors, the line detectors including linear arrays of photon counting channels. Each of the channels includes a photon conversion channel element which is operable to convert photons to electric pulses. A plurality of pulse counters are operable to count pulses in a plurality of different ranges of pulse strength, where the strength of a pulse depends on the energy of the photon. Further, an arrangement is included for an energy subtracting operation.

摘要翻译： 提供一种用于采集包含光谱信息的图像的X射线装置。 具有多个狭缝的X射线源和准直器与一组线检测器一起可操作，线检测器包括光子计数通道的线性阵列。 每个通道包括可操作以将光子转换成电脉冲的光子转换通道元件。 多个脉冲计数器可用于对多个不同的脉冲强度范围的脉冲进行计数，其中脉冲的强度取决于光子的能量。 此外，包括用于能量减去操作的布置。