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1. 发明授权

US12070347B2 Systems, methods, and devices for multi-energy ray imaging 有权
公开(公告)号：US12070347B2
公开(公告)日：2024-08-27
申请号：US18228236
申请日：2023-07-31
申请人： Varian Medical Systems, Inc.
发明人： Arundhuti Ganguly , Gary F. Mrshup , Michelle Richmond , Billy Dan Jones
IPC分类号： A61B6/00 , G21K1/10 , H05G1/58 , H05G1/60 , A61B6/04 , A61B6/50 , G01N23/00 , G01N23/04 , H01J35/04
CPC分类号： A61B6/484 , A61B6/482 , G21K1/10 , H05G1/58 , H05G1/60 , A61B6/04 , A61B6/50 , A61B6/54 , G01N23/00 , G01N23/04 , H01J35/045
摘要： A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual x-ray pulses and synchronizes detection by the x-ray imager with generation of the individual x-ray pulses. The GIB can control x-ray pulse generation and synchronization to optimize image generation while minimizing unnecessary x-ray irradiation.

2. 发明公开

US20230371914A1 SYSTEMS, METHODS, AND DEVICES FOR MULTI-ENERGY X-RAY IMAGING 审中-公开
公开(公告)号：US20230371914A1
公开(公告)日：2023-11-23
申请号：US18228236
申请日：2023-07-31
申请人： Varian Medical Systems, Inc.
发明人： Arundhuti GANGULY , Gary F. VIRSHUP , Michelle RICHMOND , Billy Dan JONES
IPC分类号： A61B6/00 , H05G1/58 , G21K1/10 , H05G1/60
CPC分类号： A61B6/484 , H05G1/58 , A61B6/482 , G21K1/10 , H05G1/60 , H01J35/045
摘要： A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual x-ray pulses and synchronizes detection by the x-ray imager with generation of the individual x-ray pulses. The GIB can control x-ray pulse generation and synchronization to optimize image generation while minimizing unnecessary x-ray irradiation.

3. 发明申请

US20180145609A1 HYBRID SWITCH FOR INVERTER OF COMPUTED TOMOGRAPHY SYSTEM 审中-公开
公开(公告)号：US20180145609A1
公开(公告)日：2018-05-24
申请号：US15359850
申请日：2016-11-23
申请人： General Electric Company
发明人： Yannick Louvrier , Christophe Robert , Philippe Ernest , Nicolas Levilly
IPC分类号： H02M7/539 , H05G1/46 , H05G1/10 , A61B6/03
CPC分类号： H02M7/539 , A61B6/03 , A61B6/032 , A61B6/40 , A61B6/56 , H01L27/0623 , H01L29/1608 , H02M3/3353 , H02M7/797 , H03K17/6871 , H05G1/10 , H05G1/46 , H05G1/60 , Y02B70/1483
摘要： An inverter for a computed tomography (CT) system is provided. The inverter includes a hybrid switch. The hybrid switch includes a silicon carbide metal-oxide-semiconductor field-effect transistor (SiC MOSFET) portion, an insulated-gate bipolar transistor (IGBT) portion, a first gate associated within the SiC MOSFET portion, and a second gate associated with the IGBT portion. The SiC MOSFET portion and the IGBT portion of the hybrid switch are configured to be independently controlled via the first gate and the second gate.

4. 发明授权

US09867580B2 X-ray imaging based on image data from a photon-counting multi-bin X-ray detector 有权
公开(公告)号：US09867580B2
公开(公告)日：2018-01-16
申请号：US15504159
申请日：2014-11-10
申请人： PRISMATIC SENSORS AB
发明人： Mats Danielsson , Hans Bornefalk , Xuejin Liu , Ben Huber , Han Chen
IPC分类号： A61B6/00 , A61B6/03 , G01N23/04 , G01T1/17 , G01T1/24 , G01T7/00 , G06T11/00
CPC分类号： A61B6/03 , A61B6/42 , A61B6/4241 , A61B6/482 , A61B6/5205 , A61B6/583 , A61B6/585 , G01N23/04 , G01N23/087 , G01N2223/206 , G01N2223/401 , G01N2223/423 , G01T1/17 , G01T1/171 , G01T1/24 , G01T1/247 , G01T7/005 , G01V5/0041 , G06T11/003 , G06T11/005 , H01L27/14658 , H04N5/32 , H04N5/3745 , H05G1/60
摘要： There is provided a method and corresponding system and apparatus for image reconstruction based on image data from a photon-counting multi-bin x-ray detector. The method includes determining (S1) parameter(s) of a given functional form of the relationship between comparator settings expressed in voltage in the read-out chain of the x-ray detector and the corresponding energy threshold values expressed in energy based on a fitting procedure between a first set of data representative of a measured pulse height spectrum and a second set of data representative of a reference pulse height spectrum. The method also includes performing (S2) image reconstruction based on the image data and the determined parameter(s). In this way, efficient high-quality image reconstruction can be achieved.

5. 发明授权

US09826612B2 X-ray emission device 有权
公开(公告)号：US09826612B2
公开(公告)日：2017-11-21
申请号：US14854047
申请日：2015-09-15
申请人： Wistron Corporation
发明人： Chun-Chih Lai
IPC分类号： H05G1/70 , H05G1/32 , G21K1/06 , A61B6/00 , H05G1/60
CPC分类号： H05G1/32 , A61B6/00 , A61B6/4007 , A61B6/4488 , A61B6/586 , G21K1/065 , H05G1/60 , H05G1/70
摘要： An X-ray emission device for emitting an integrated X-ray beam toward an object is disclosed. The X-ray emission device includes multiple X-ray emission tubes for respectively generating multiple X-rays, and a lens module for guiding the multiple X-rays toward the object to form the integrated X-ray beam.

6. 发明授权

US08734013B2 Small mobile x-ray scanning system 有权
标题翻译：小型移动x射线扫描系统
公开(公告)号：US08734013B2
公开(公告)日：2014-05-27
申请号：US13080547
申请日：2011-04-05
申请人： Satpal Singh
发明人： Satpal Singh
IPC分类号： H05G1/02 , H05G1/60
CPC分类号： H05G1/02 , G01N23/043 , G01N2223/1016 , G01N2223/423 , G01N2223/64 , G01V5/005 , H05G1/60
摘要： This invention describes a method of inspecting unidentified packages placed on the floor or ground, or on desktops or counters. The method uses a transmissive x-ray system mounted on a small mobile platform such as robots. X-ray is emitted from the source directed away from the platform and detected by a detector arm supported on an extended member attached to a vertical member such that the object to be inspected can pass in between the detector arm and the x-ray source. To scan portions of the object close to the ground, the height of the x-ray source is lowered close to the ground, and during transportation, it is raised up so that there is more clearance from the ground. To scan objects located on higher levels such as desks, the detector arm has an angular movement greater than ninety degrees with respect to an axis that has a vertical component.
摘要翻译：本发明描述了一种检查放置在地板或地面上或台式机或计数器上的不明包裹的方法。该方法使用安装在小型移动平台（如机器人）上的透射式X射线系统。从远离平台的源发射X射线，并由支撑在附接到垂直构件的延伸构件上的检测器臂检测，使得被检查物体能够通过检测器臂和x射线源之间。为了扫描靠近地面的物体的部分，X射线源的高度靠近地面降低，并且在运输过程中升高，以便与地面有更多的间隙。为了扫描位于较高级别（例如书桌）上的物体，检测器臂相对于具有垂直分量的轴线具有大于九十度的角度运动。

7. 发明申请

US20130230141A1 X-RAY IMAGING APPARATUS, CONTROL DEVICE, RADIATION IMAGING APPARATUS, AND METHOD OF CONTROLLING THE SAME 有权
标题翻译： X射线成像装置，控制装置，放射成像装置及其控制方法
公开(公告)号：US20130230141A1
公开(公告)日：2013-09-05
申请号：US13752466
申请日：2013-01-29
申请人： CANON KABUSHIKI KAISHA
发明人： Norihiko Miyachi
IPC分类号： H05G1/30 , G01N23/04
CPC分类号： H05G1/30 , A61B6/00 , A61B6/54 , A61B6/563 , G01N23/04 , G06T1/0007 , G06T11/003 , H04N5/32 , H04N5/321 , H04N5/38 , H05G1/00 , H05G1/08 , H05G1/60
摘要： For image data being transferred last of a plurality of image data captured in a first imaging mode, a retransmission timeout time is set different from a retransmission timeout time for at least one image data different from image data, of the plurality of image data, which is transferred last.
摘要翻译：对于在第一成像模式中捕获的多个图像数据中的最后一次传送的图像数据，对于多个图像数据中与图像数据不同的至少一个图像数据，将重发超时时间设置为不同于重传超时时间，其中被转移到最后。

8. 发明授权

US08031832B2 Circular multi-beam X-ray device 有权
标题翻译：圆形多光束X射线装置
公开(公告)号：US08031832B2
公开(公告)日：2011-10-04
申请号：US12572397
申请日：2009-10-02
申请人： Franz Fadler
发明人： Franz Fadler
IPC分类号： H05G1/60 , H01J35/08 , G21K1/04
CPC分类号： G21K1/04 , A61B6/025 , A61B6/06 , A61B6/4007 , A61B6/4021 , A61B6/502 , G21K1/043 , G21K1/046 , H01J35/24 , H05G1/60
摘要： A multi-beam x-ray device has a multi-beam x-ray tube with an interior in the form of a circle. Focal spots of the x-ray radiation are arranged along the circle. An x-ray tube control unit controls the x-ray radiation emission such that an x-ray beam is emitted from each segment of the circle in specified sequence. The circle is divided up into at least two segments, and multiple diaphragms, each with at least one diaphragm aperture therein, one mounted to rotate around the center point of the circular path into the beam path of the x-ray tube. A first diaphragm, whose first diaphragm aperture limits the cross section of the x-ray beam emitted from the x-ray tube, is associated with each segment of the circular path. A number of slice images can be acquired without a movement of the x-ray tube.
摘要翻译：多光束X射线装置具有多圆形X射线管，其内部呈圆形。 x射线辐射的焦点沿着圆周排列。 X射线管控制单元控制x射线辐射发射，使得以规定的顺序从圆的每个段发射x射线束。圆圈分成至少两个部分，多个光阑，每个光阑在其中至少有一个光阑孔，一个被安装成围绕圆形路径的中心点转动到X射线管的光束路径中。第一光阑，其第一光阑孔径限制从X射线管发射的X射线束的横截面，与圆形路径的每个段相关联。可以获取多个切片图像而不移动X射线管。

9. 发明申请

US20100002829A1 CONE-BEAM CT 有权
公开(公告)号：US20100002829A1
公开(公告)日：2010-01-07
申请号：US12307374
申请日：2007-04-10
申请人： Ehud Dafni
发明人： Ehud Dafni
IPC分类号： A61B6/03
CPC分类号： A61B6/4028 , A61B6/032 , A61B6/4014 , A61B6/503 , A61B6/541 , G01N23/046 , G01N2223/419 , G01N2223/612 , H01J35/10 , H01J2235/068 , H05G1/58 , H05G1/60 , H05G1/70
摘要： Apparatus for CT cone beam scanning, comprising: a table for holding a subject; a gantry; a first detector array, having a given number of rows of detector elements spaced along an rotation axis of the gantry, mounted on the gantry; a first plurality of x-ray sources mounted on the gantry for rotation about the patient table on a rotation axis, the number of rows being at least twice the number of sources; and a controller that acquires data responsive to radiation from the sources from the detector array attenuated by at least part of the common volume of the subject irradiated by the plurality of radiation sources.
摘要翻译： CT锥形束扫描装置，包括：用于保持被检体的台; 龙门架第一检测器阵列，具有安装在台架上的具有沿着台架的旋转轴线间隔开的给定数量的检测器元件排; 安装在所述台架上的第一组多个x射线源，用于在旋转轴线上绕所述患者台转动，所述行数至少为所述源数量的两倍; 以及控制器，其获取响应来自所述检测器阵列的源的辐射的数据，所述数据由被所述多个辐射源照射的被摄体的共同体积的至少一部分衰减。

10. 发明授权

US07076023B2 X-ray therapy electronic portal imaging system and method for artifact reduction 失效
公开(公告)号：US07076023B2
公开(公告)日：2006-07-11
申请号：US10039607
申请日：2001-10-26
申请人： Farhad Abbasi Ghelmansarai , William F. Collins
发明人： Farhad Abbasi Ghelmansarai , William F. Collins
IPC分类号： A61N5/10
CPC分类号： H04N5/357 , A61B6/00 , A61B6/4233 , A61B6/488 , H04N5/32 , H04N5/325 , H05G1/60
摘要： X-ray therapy EPI artifact reduction and control of imaging is provided. Scanning of images is synchronized with the pulse rate of the x-rays. The scanning period is longer than the pulse rate period, so artifacts are generated within the resulting images. Due to the synchronization, the pulse variation artifacts are aligned across multiple images. The synchronization and resulting alignment of linear artifacts allows for gain correction as a function of lines within the image. Such gain correction reduces or removes non-linearities associated with pulse rate variation.

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