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公开(公告)号：US20240125715A1
公开(公告)日：2024-04-18
申请号：US18276744
申请日：2021-09-17
发明人： Michel N'GUYEN , Cyril CAUBIT
IPC分类号： G01N23/083
CPC分类号： G01N23/083 , G01N2223/206 , G01N2223/303 , G01N2223/3303 , G01N2223/501
摘要： The device includes a first X-ray source, configured to illuminating a measurement cell with a first beam of X photons; a first detector, placed opposite the first X-ray source along a first illumination axis; a second X-ray source, configured to illuminating the measurement cell with a second beam of X photons simultaneously with the first X-ray source; a second detector, placed opposite the second X-ray source along a second illumination axis; and a tray carrying the first X-ray source, the first detector, the second X-ray source, and the second detector, the tray being rotatable around the cell axis.
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公开(公告)号：US20230375484A1
公开(公告)日：2023-11-23
申请号：US18030948
申请日：2021-10-08
发明人： Christina Inscoe , Yueh Zenas Lee , Boyuan LI
IPC分类号： G01N23/046 , H01J35/06 , H01J35/14 , G06T11/00 , H01J35/04
CPC分类号： G01N23/046 , H01J35/065 , H01J35/147 , H01J35/153 , G06T11/005 , H01J35/045 , G01N2223/419 , G01N2223/6126 , G01N2223/6123 , G01N2223/424 , G01N2223/3301 , G01N2223/401 , G01N2223/313 , G01N2223/055 , G01N2223/421 , G01N2223/206 , H01J2201/30469 , G06T2211/408
摘要： A multisource volumetric spectral computed tomography imaging device includes an x-ray source array with multiple spatially distributed x-ray focal spots, an x-ray beam collimator with an array of apertures, each confining the radiation from a corresponding x-ray focal spot to illuminate a corresponding segment of an object, a digital area x-ray detector, and a gantry to rotate the x-ray source array and the detector around the object. An electronic control unit activates the radiations from the x-ray focal spots to scan the object multiple times as the gantry rotates around the object. The images are used to reconstruct a volumetric CT image of the object with reduced scattered radiation. For dual energy and multi energy imaging, radiation from each focal spot is filtered by a corresponding spectral filter to optimize its energy spectrum.
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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
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.
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公开(公告)号：US20150117594A1
公开(公告)日：2015-04-30
申请号：US14408281
申请日：2012-06-29
申请人： Julia Pavlovich , Ram Naidu
发明人： Julia Pavlovich , Ram Naidu
CPC分类号： G06K9/4661 , A61B6/032 , A61B6/4241 , A61B6/482 , A61B6/5205 , G01N23/046 , G01N2223/206 , G01N2223/419 , G01N2223/423
摘要： Multi-energy imaging is afforded with a single detector array by generating a first data set, indicative of a first radiation energy spectrum, using a first set of cells of the array, and by generating a second data set, indicative of a second radiation energy spectrum, using a second set of cells of the array (e.g., where substantially more cells are in the first set than the second). The first data set is comprised of measured data from the first set of cells and estimated data that would have been yielded from the second set of cells had the second set been configured to detect the first energy spectrum. The second data set is comprised of measured data yielded from the second set of cells and estimated data that would have been yielded from the first set of cells had the first set been configured to detect the second energy spectrum.
摘要翻译： 通过使用阵列的第一组单元格产生表示第一辐射能谱的第一数据集，并通过产生表示第二辐射能量的第二数据集，提供单个检测器阵列的多能量成像 频谱，使用阵列的第二组单元（例如，其中基本上更多的单元在第一组中比第二组中的单元更多）。 第一数据集包括来自第一组单元的测量数据和从第二组单元产生的估计数据，其中第二组被配置为检测第一能谱。 第二数据集包括从第二组单元产生的测量数据和从第一组单元产生的估计数据，其中第一组被配置为检测第二能谱。
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5.发明申请METHOD AND APPARATUS FOR CORRECTING ARTIFACTS DURING GENERATION OF X-RAY IMAGES, IN PARTICULAR COMPUTED TOMOGRAPHY, OR RADIOGRAPHY BY MEANS OF TEMPORAL MODULATION OF PRIMARY RADIATION 有权用于在X射线图像产生，特别是计算机图像或通过初级辐射的时间调制的方法中校正人造物的方法和装置公开(公告)号：US20140056407A1
公开(公告)日：2014-02-27
申请号：US14009298
申请日：2012-03-23
CPC分类号： G06T5/003 , A61B6/032 , A61B6/4035 , A61B6/5205 , A61B6/5282 , G01N23/04 , G01N23/046 , G01N2223/206 , G01N2223/419 , G06T5/002 , G06T5/50 , G06T11/005 , G06T2207/10116 , G06T2207/10152 , G06T2207/30004
摘要： Artifacts caused by scattered radiation when generating X-ray images of objects are corrected using a temporally alterable modulation of the primary radiation. A respective set of originally amplitude-modulated modulation projections of the object is generated and a respective scattered image allocated to the respective modulation projections is calculated. The method is particularly suitable for fast CT scans.
摘要翻译： 使用主要辐射的时间上可变的调制来校正当产生物体的X射线图像时由散射辐射引起的人造物。 产生对象的原始幅度调制调制投影的相应集合，并且计算分配给各调制投影的相应散射图像。 该方法特别适用于快速CT扫描。
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公开(公告)号：US20100020920A1
公开(公告)日：2010-01-28
申请号：US12442599
申请日：2007-09-26
申请人： Thomas Mertelmeier
发明人： Thomas Mertelmeier
CPC分类号： G01N23/046 , A61B6/025 , A61B6/032 , A61B6/4007 , A61B6/4028 , A61B6/4241 , A61B6/482 , G01N2223/1016 , G01N2223/206 , G01N2223/414 , G01N2223/419 , G01N2223/612 , H01J2235/08
摘要： In an x-ray system and a method for tomosynthetic scanning of a subject, x-ray radiation is emitted from two x-ray sources that are panned relative to the subject during a tomosynthetic scan. The two x-ray sources each emit an x-ray beam, the respective x-ray beams being parallel to each other with regard to their beam directions proceeding toward the subject. X-rays from the two parallel beams attenuated by the subject are detected by a two-dimensional x-ray detector, that is substantially stationary during the tomosynthetic scan.
摘要翻译： 在x射线系统和用于受试者的肌层合成扫描的方法中，在断层合成扫描期间，从相对于受试者平移的两个x射线源发射X射线辐射。 两个X射线源各自发射X射线束，相应的X射线束相对于朝向被摄体的射束方向彼此平行。 来自被对象衰减的两条平行光束的X射线被二维X射线检测器检测，二维X射线检测器在断层合成扫描期间基本上是静止的。
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7.发明授权Density measuring apparatus providing a substantially pure beam of radiation from composite sources 失效提供来自复合源的基本上纯净的辐射束的密度测量装置
公开(公告)号：US3094622A
公开(公告)日：1963-06-18
申请号：US82410759
申请日：1959-06-30
发明人： HANDEL NEIL E
CPC分类号： G21G4/06 , G01N23/06 , G01N23/22 , G01N2223/03 , G01N2223/1016 , G01N2223/204 , G01N2223/206 , G01N2223/633
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8.发明公开公开(公告)号：US20230280291A1
公开(公告)日：2023-09-07
申请号：US18175171
申请日：2023-02-27
申请人： Sigray, Inc.
发明人： Wenbing Yun , Benjamin Donald Stripe , Frances Yenan Su , Vikaram Singh , Sylvia Jia Yun Lewis , Janos Kirz
IPC分类号： G01N23/223 , G01N23/2204
CPC分类号： G01N23/223 , G01N23/2204 , G01N2223/204 , G01N2223/206
摘要： A system includes a stage for supporting a sample having at least first and second atomic elements. The first atomic element has a first characteristic x-ray line with a first energy and the second atomic element has a second characteristic x-ray line with a second energy, the first and second energies lower than 8 keV and separated from one another by less than 1 keV. The system further includes an x-ray source of x-rays having a third energy between the first and second energies and at least one x-ray optic configured to receive and focus at least some of the x-rays as an x-ray beam to illuminate the sample. The system further includes at least one x-ray detector configured to detect fluorescence x-rays produced by the sample in response to being irradiated by the x-ray beam.
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公开(公告)号：US20180164231A1
公开(公告)日：2018-06-14
申请号：US15379071
申请日：2016-12-14
CPC分类号： G01N23/04 , G01N33/12 , G01N2223/206 , G01N2223/401 , G01N2223/408 , G01N2223/423 , G01N2223/424 , G01N2223/618 , G01N2223/643 , G01N2223/645 , G01N2223/652 , G08B21/18
摘要： A system and method for foreign object detection in meat processing is provided. The system and method combine microfocus X-ray tubes with dual energy X-rays to detect foreign objects in meat products. A dual energy image processing algorithm analyzes the dual energy X-rays passed through the meat product to identify the foreign object present therein. An alarm or other notification is then generated in response to the detection of a foreign object.
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公开(公告)号：US09752996B2
公开(公告)日：2017-09-05
申请号：US15502491
申请日：2015-08-05
申请人： ISHIDA CO., LTD.
发明人： Kazuyuki Sugimoto , Osamu Hirose
CPC分类号： G01N23/18 , G01N23/04 , G01N2223/206 , G01N2223/423 , G01N2223/424 , G01N2223/5015 , G01N2223/618 , G01N2223/643
摘要： Provided is a highly reliable X-ray inspection device having two line sensors, in which accurate inspection results can be obtained even when there is displacement of the mounting position of the line sensors. The X-ray inspection device is provided with a conveyor unit for conveying an article, an X-ray emitter, a first line sensor, a second line sensor, a detection unit, and a corrected-image generation unit. The X-ray emitter emits X-rays to the article conveyed by the conveyor unit. The first line sensor detects, in a low energy band, X-rays that have passed through the article. The second line sensor detects, in a high energy band, X-rays that have passed through the article. The detection unit detects positional displacement of the second line sensor with respect to the first line sensor in horizontal direction and vertical direction.
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