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公开(公告)号：US10663607B2
公开(公告)日：2020-05-26
申请号：US15591165
申请日：2017-05-10
Applicant: Nuctech Company Limited
Inventor： Lan Zhang , Yingshuai Du , Bo Li , Zonggui Wu , Jun Li , Xuepeng Cao , Haifan Hu , Jianping Gu , Guangming Xu , Bicheng Liu
IPC: G01T1/36
Abstract: The present disclosure provides an apparatus for processing signals for a plurality of energy regions, and a system and method for detecting radiation of a plurality of energy regions. The apparatus for processing signals for a plurality of energy regions may comprise: a first processor, configured to receive a signal from a detector and process the received signal to generate a gated signal, wherein a turn-on period of the gated signal represents magnitude of the received signal; and a second processor, configured to receive the gated signal from the first processor, and determine one of the plurality of energy regions to which the received signal belongs according to the turn-on period of the gated signal, so as to count signals within the determined energy region.
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公开(公告)号：US10649104B2
公开(公告)日：2020-05-12
申请号：US15597003
申请日：2017-05-16
Applicant: Tsinghua University , NUCTECH COMPANY LIMITED
Inventor： Liang Li , Zhiqiang Chen , Li Zhang , Ziran Zhao , Yuxiang Xing , Kejun Kang , Lan Zhang , Ruizhe Li
IPC: G01T1/36 , G01N23/223 , G01T7/00
Abstract: A method and apparatus for reconstructing an incident energy spectrum for a detector are disclosed. In this method, an object to be inspected is illuminated with rays, and then rays transmitted through the object to be inspected are received by the detector to convert the received rays into data of a detected energy spectrum. The incident energy spectrum for the detector is reconstructed based on the data of the energy spectrum using a statistical iterative algorithm with a pre-established detector response function. With the above solution of the embodiments, the incident energy spectrum for the detector can be more accurately acquired, thereby reducing a distortion of the incident energy spectrum caused by the detector.
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公开(公告)号：US10411051B2
公开(公告)日：2019-09-10
申请号：US15580848
申请日：2016-08-31
Applicant: Nuctech Company Limited
Inventor： Lan Zhang , Yuanjing Li , Yinong Liu , Haifan Hu , Jun Li
IPC: H01L27/144 , H01L27/146 , H01L31/0224 , H01L31/0352 , H01L31/18
Abstract: A coplanar electrode photodiode array and a manufacturing method thereof are disclosed. On a top side of a low resistance rate substrate, a high resistance epitaxial silicon wafer, a first conductive type heavily doped region and a second conductive type doped region are formed, which are a cathode and an anode of a photodiode respectively. The structure includes a trench structure formed between the anode and the cathode, the trench structure may be form by a gap, an insulating material, a conductive structure, a reflective material, and ion implantation, and also includes a first conductive type heavily doped region, an insulating isolation layer or a conductive structure with an insulating layer, and the like formed under the anode and the cathode.
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公开(公告)号：US10646179B2
公开(公告)日：2020-05-12
申请号：US15720502
申请日：2017-09-29
Applicant: NUCTECH COMPANY LIMITED
Inventor： Guangming Xu , Bicheng Liu , Ziran Zhao , Lan Zhang , Jianping Gu
Abstract: The present disclosure provides a method for recognizing an article using a multi-energy spectrum X-ray imaging system and a multi-energy spectrum X-ray imaging system. The method comprises: recognizing an application scenario and/or priori information of the article; selecting a parameter mode suitable for the article from a plurality of parameter modes stored in the multi-energy spectrum X-ray imaging system based on the recognized application scenario and/or priori information; and recognizing the article using the selected parameter mode, wherein the plurality of parameter modes are obtained by optimizing system parameters of the multi-energy spectrum X-ray imaging system under a specific condition using a training sample library for various articles.
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公开(公告)号：US10295679B2
公开(公告)日：2019-05-21
申请号：US15609476
申请日：2017-05-31
Applicant: NUCTECH COMPANY LIMITED
Inventor： Lan Zhang , Yingshuai Du , Bo Li , Zonggui Wu , Jun Li , Xuepeng Cao , Haifan Hu , Jianping Gu , Guangming Xu , Bicheng Liu
IPC: G01T1/24 , H01L31/0224 , H01L31/032
Abstract: A semiconductor may include a semiconductor detection material including a first side and a second side opposite to each other, a cathode disposed on the first side, and an anode disposed on the second side. The anode includes an array of pixel anodes defining detection pixels of the semiconductor detector, and intermediate anodes disposed between adjacent ones of the pixel anodes. According to an embodiment of the present disclosure, it is possible to achieve signal correction to improve the energy resolution and the signal-to-noise ratio of the detector.
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Patent Agency Ranking
公开(公告)号：US20180059269A1
公开(公告)日：2018-03-01
申请号：US15591165
申请日：2017-05-10
Applicant: Nuctech Company Limited
Inventor： Lan Zhang , Yingshuai Du , Bo Li , Zonggui Wu , Jun Li , Xuepeng Cao , Haifan Hu , Jianping Gu , Guangming Xu , Bicheng Liu
IPC: G01T1/36
Abstract: The present disclosure provides an apparatus for processing signals for a plurality of energy regions, and a system and method for detecting radiation of a plurality of energy regions. The apparatus for processing signals for a plurality of energy regions may comprise: a first processor, configured to receive a signal from a detector and process the received signal to generate a gated signal, wherein a turn-on period of the gated signal represents magnitude of the received signal; and a second processor, configured to receive the gated signal from the first processor, and determine one of the plurality of energy regions to which the received signal belongs according to the turn-on period of the gated signal, so as to count signals within the determined energy region.
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公开(公告)号：US20180059265A1
公开(公告)日：2018-03-01
申请号：US15606394
申请日：2017-05-26
Applicant: NUCTECH COMPANY LIMITED
Inventor： Lan Zhang , Yingshuai Du , Bo Li , Zonggui Wu , Jun Li , Xuepeng Cao , Haifan Hu , Jianping Gu , Guangming Xu , Bicheng Liu
IPC: G01T1/24 , H01L31/0296 , H01L31/08 , H01L31/18
CPC classification number: G01T1/247 , G01T1/241 , G01T1/2928 , H01L31/0296 , H01L31/085 , H01L31/1832 , H04N5/378 , H04N5/379
Abstract: A semiconductor detector and a packaging method thereof. The semiconductor detector includes: a cathode circuit board including a read out chip, a high voltage side top layer of the cathode circuit board, a bottom connection layer of the cathode circuit board and a dielectric filled between the high voltage side top layer and the bottom connection layer, wherein the high voltage side top layer is connected to the bottom connection layer through a via hole; and a detector crystal including a crystal body, an anode and a cathode, the anode is connected to the read out chip of the cathode circuit board, the high voltage side top layer is connected to an input terminal of the semiconductor detector and the bottom connection layer directly contacts the cathode of the detector crystal to connect the cathode to the cathode circuit board.
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公开(公告)号：US20180059264A1
公开(公告)日：2018-03-01
申请号：US15602478
申请日：2017-05-23
Applicant: Nuctech Company Limited
Inventor： Lan Zhang , Yingshuai Du , Bo Li , Zonggui Wu , Jun Li , Xuepeng Cao , Haifan Hu , Jianping Gu , Guangming Xu , Bicheng Liu
CPC classification number: G01T1/241 , G06T7/11 , G06T7/70 , G06T2207/10116
Abstract: The disclosure provides a detector, and a detecting system and method for dividing energy regions intelligently. The detecting method may comprise: collecting, by a detector, rays transmitted through a detected object and generating a detection signal according to the rays; wherein each column of pixels of the detector comprises one class-A electrode and a plurality of class-B electrodes, and the class-A electrode and the class-B electrodes are arranged sequentially in a moving direction of the detected object, such that the rays transmitted through the detected object firstly enter into the class-A electrode and then into the class-B electrodes; obtaining image data of the detected object based on the detection signal corresponding to the class-A electrode, and estimating a material component of the detected object based on the image data; adjusting one or more thresholds for dividing the energy regions according to the estimated material component; and determining energy regions to which the detection signal corresponding to the class-B electrodes belongs, according to the adjusted one or more thresholds, and calculating a number of signals in each energy region, so as to obtain the image data of the detected object and determine components of the detected object accurately.
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公开(公告)号：US20180059261A1
公开(公告)日：2018-03-01
申请号：US15606071
申请日：2017-05-26
Applicant: Nuctech Company Limited
Inventor： Lan Zhang , Yingshuai Du , Bo Li , Zonggui Wu , Jun Li , Xuepeng Cao , Haifan Hu , Jianping Gu , Guangming Xu , Bicheng Liu
IPC: G01T1/24 , H01L31/119 , H01L31/0296 , H01L31/02 , H05K1/11 , H05K1/02 , H05K1/18
CPC classification number: G01T1/24 , G01T1/241 , H01L31/02005 , H01L31/0224 , H01L31/02966 , H01L31/115 , H01L31/119 , H05K1/0233 , H05K1/028 , H05K1/115 , H05K1/181 , H05K2201/10151 , H05K2201/10287 , H05K2201/10522
Abstract: The present disclosure provides a semiconductor detector. The semiconductor detector comprises: a detector crystal including a crystal body, an anode and a cathode; a field enhance electrode for applying a voltage to the detector crystal; an insulating material disposed between the field enhanced electrode and a surface of the detector crystal. The semiconductor detector further comprises a field enhanced electrode circuit board having a bottom connection layer in contact with the surface of the detector crystal and a top layer opposite to the bottom connection layer, wherein the top layer is connected to a high voltage input terminal of the semiconductor detector, and an insulating material is provided between the bottom connection layer and the detector surface of the detector crystal.
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公开(公告)号：US20180038970A1
公开(公告)日：2018-02-08
申请号：US15597003
申请日：2017-05-16
Applicant: Tsinghua University , NUCTECH COMPANY LIMITED
Inventor： Liang Li , Zhiqiang Chen , Li Zhang , Ziran Zhao , Yuxiang Xing , Kejun Kang , Lan Zhang , Ruizhe Li
IPC: G01T7/00 , G01N23/223
CPC classification number: G01T7/005 , G01N23/223 , G01N2223/076 , G01N2223/303
Abstract: A method and apparatus for reconstructing an incident energy spectrum for a detector are disclosed. In this method, an object to be inspected is illuminated with rays, and then rays transmitted through the object to be inspected are received by the detector to convert the received rays into data of a detected energy spectrum. The incident energy spectrum for the detector is reconstructed based on the data of the energy spectrum using a statistical iterative algorithm with a pre-established detector response function. With the above solution of the embodiments, the incident energy spectrum for the detector can be more accurately acquired, thereby reducing a distortion of the incident energy spectrum caused by the detector.
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