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公开(公告)号：US20240341704A1
公开(公告)日：2024-10-17
申请号：US18133051
申请日：2023-04-11
CPC分类号： A61B6/4241 , G01T1/247 , A61B6/03
摘要： A photon counting detector includes a plurality of detector sub-modules. Each detector sub-module includes a semiconductor substrate. Each detector sub-module also includes a plurality of active pixels configured to act as detector elements disposed on the semiconductor substrate. Each detector sub-module further includes a plurality of traces extending from the plurality of active pixels to readout circuitry. Each active pixel of the plurality of active pixels is coupled to a respective trace of the plurality of traces. Each active pixel includes an amplification stage configured to generate an output signal based on a current pulse output generated by the active pixel. The photon counting detector also includes the readout circuitry configured to directly read out the output signals from the plurality of active pixels, wherein the readout circuitry is separate from the plurality of detector sub-modules.
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2.发明公开公开(公告)号：US20240304651A1
公开(公告)日：2024-09-12
申请号：US18295354
申请日：2023-04-04
发明人： TAKASHI IKEDA
IPC分类号： H01L27/146 , G01N23/046 , G01N23/083 , G01T1/24 , H01L23/544
CPC分类号： H01L27/14661 , G01N23/046 , G01N23/083 , G01T1/247 , H01L23/544 , H01L27/14659 , H01L27/1469 , H01L2223/54426
摘要： A radiation detector in which a semiconductor substrate to convert radiation into charges, a circuit board comprising a readout circuit to read out signals from pixels arranged on the substrate, and a bonding layer to bond the substrate and the circuit board are stacked is provided. Each of the pixels comprises an electrode arranged on a first surface on a side of the circuit board of the substrate. The readout circuit is arranged on a second surface on a side of the substrate of the circuit board, and is connected to a conductive pattern arranged on a third surface on an opposite side of the second surface of the circuit board. The electrode is electrically connected to the readout circuit via the conductive pattern and a second conductive member arranged in a through hole penetrating the circuit board and the bonding layer.
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公开(公告)号：US12082957B2
公开(公告)日：2024-09-10
申请号：US17116102
申请日：2020-12-09
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/4233 , G01T1/17 , G01T1/247
摘要： A photon-counting X-ray detector is for acquiring an X-ray image data set of an object penetrated by X-ray radiation. The detector includes a converter element, designed to convert incident X-ray radiation into an electrical signal; and a matrix with a plurality of pixel elements. At least a partial number of the plurality of pixel elements receive a signal input and at least one configurable counter is coupled to the at least a partial number of the plurality of pixel elements, for signaling. Further, the at least one configurable counter is designed to count either a pixel count signal, based on a signal directly received in each respective pixel element, or a coincidence count signal, based on the signal received directly in the respective pixel element and on a coincident signal of at least one further pixel element.
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公开(公告)号：US12021160B2
公开(公告)日：2024-06-25
申请号：US17439307
申请日：2019-12-05
发明人： Koji Murakami , Akira Noda , Ryuichi Hirano
IPC分类号： H01L31/0296 , C30B11/02 , C30B29/48 , C30B33/02 , G01T1/24 , H01L27/144
CPC分类号： H01L31/02966 , C30B11/02 , C30B29/48 , C30B33/02 , G01T1/247 , H01L27/1446
摘要： Provided is a CdZnTe monocrystalline substrate which has a small leakage current even when a voltage is applied from a low voltage to a high voltage, and which has a lower variation in resistivity with respect to applied voltage changes from 0 to 900 V, and which can maintain a stable resistivity. A semiconductor wafer comprising a cadmium zinc telluride monocrystal having a zinc concentration of 4.0 at % or more and 6.5 at % or less and a chlorine concentration of 0.1 ppm by weight or more and 5.0 ppm by weight or less, wherein when a voltage is applied in a range of from 0 to 900 V, the semiconductor wafer has a resistivity for each applied voltage value of 1.0×107 Ωcm or more and 7.0×108 Ωcm or less, and wherein a relative variation coefficient of each resistivity to the applied voltages in a range of from 0 to 900 V is 100% or less.
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5.发明公开公开(公告)号：US20240142644A1
公开(公告)日：2024-05-02
申请号：US18473565
申请日：2023-09-25
发明人： TOMOHIRO HOSHINA , MASATO INOUE , KAITO MIYASHITA
IPC分类号： G01T1/24
摘要： A radiation detection apparatus includes a plurality of sensor units each including a semiconductor layer that converts radiation into a charge, a first surface located on a radiation incident side, and a second surface located on an opposite side to the first surface, a support member, an elastic member located between the second surface of each of the plurality of sensor units and the support member, and a substrate that covers the first surface of each of the plurality of sensor units. The elastic member presses each of the plurality of sensor units toward the substrate.
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6.发明公开公开(公告)号：US20240077626A1
公开(公告)日：2024-03-07
申请号：US18150159
申请日：2023-01-04
申请人： Institute of Radiation Medicine Chinese Academy of Medical Sciences , Tianjin Huafang Technology Co., Ltd. , Harbin Engineering University, Yantai Research Institute , Tianjin Eco-Environmental Monitoring Center
发明人： Qiang Liu , Zhenhua Lin , Jinhan Wang , Kunliang Yao , Yudong Luo , Sheng Wu , Yongjie Wang , Jianzheng Gao , Ming Cui
IPC分类号： G01T1/24
CPC分类号： G01T1/247
摘要： A signal processing system and method for a radiation detector based on a metal oxide semiconductor (MOS) transistor are disclosed. The signal processing system includes a power supply generation module, an analog signal processing module, and a digital signal acquiring-processing module. The power supply generation module provides a novel power supply method, and converts a positive high voltage power supply into a negative high voltage power supply to supply power to a last dynode of a photomultiplier tube (PMT). The analog signal processing module converts a negative current pulse signal into a voltage difference signal. The digital signal acquiring-processing module acquires a signal of the analog signal processing module, and converts the signal into a digital signal for identification.
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公开(公告)号：US20240055464A1
公开(公告)日：2024-02-15
申请号：US18255110
申请日：2021-11-23
申请人： ams-OSRAM AG
发明人： José Manuel GARCÍA GONZÁLEZ , Joel BERTOMEU MESTRE , Harald ETSCHMAIER , Rafael SERRANO GOTARREDONA
IPC分类号： H01L27/146 , G01T1/24 , A61B6/00 , H04N25/30 , H04N25/78
CPC分类号： H01L27/14659 , G01T1/247 , A61B6/4233 , H04N25/30 , H04N25/78
摘要： An X-ray radiation sensor device may include a direct X-ray conversion layer, a plurality of electrodes to provide an electric charge in response to an interaction of an X-ray photon within the direct X-ray conversion layer, a plurality of pixel sensor arrays, and at least one interposer. The direct X-ray conversion layer and the plurality of electrodes are disposed on the top surface of the interposer(s). The plurality of the pixel sensor arrays is disposed on the bottom surface of the interposer(s), and the interposer(s) is configured to electrically couple each of the pixel sensor arrays to a respective portion of the plurality of electrodes.
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公开(公告)号：US11892575B2
公开(公告)日：2024-02-06
申请号：US17681613
申请日：2022-02-25
发明人： Shigeo Kobayashi
摘要： A radiation imaging system includes a data processing apparatus and a radiation imaging apparatus. The radiation imaging apparatus includes a plurality of antennas for transmitting and receiving data to and from the data processing apparatus via wireless communication. The data processing apparatus transmits, to the radiation imaging apparatus, information about an antenna that is preset as an antenna to be used from among the plurality of antennas. The radiation imaging apparatus selects, based on the information, the antenna to be used from the plurality of antennas.
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公开(公告)号：US11846737B2
公开(公告)日：2023-12-19
申请号：US17663250
申请日：2022-05-13
发明人： Go Kawata
IPC分类号： G01T1/208 , G01T1/22 , G01T1/20 , G01T1/29 , G01T1/16 , G01T1/24 , G01T1/36 , A61B6/03 , G01T1/172 , A61B6/00 , G01N23/20066
CPC分类号： G01T1/208 , A61B6/037 , A61B6/586 , G01N23/20066 , G01T1/1603 , G01T1/172 , G01T1/20181 , G01T1/20184 , G01T1/22 , G01T1/242 , G01T1/247 , G01T1/248 , G01T1/249 , G01T1/2985 , G01T1/363
摘要： A data processing apparatus according to an embodiment includes acquisition circuitry and specification circuitry. The acquisition circuitry is configured to acquire a detector signal containing a first component that is based on Cherenkov light and a second component that is based on scintillation light. The specification circuitry is configured to specify timing information about generation of the detector signal by curve fitting to the first component.
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公开(公告)号：US11822025B2
公开(公告)日：2023-11-21
申请号：US17013689
申请日：2020-09-07
发明人： Ting Lu
CPC分类号： G01T1/20184 , A61B6/037 , A61B6/5205 , G01T1/2985 , G01T1/1612 , G01T1/208 , G01T1/247 , G01T1/248
摘要： A PET detecting device may include a plurality of detection modules and a processing engine. Each of the plurality of detection modules may include a scintillator array, one or more photoelectric converters, one or more energy information determination circuits and a time information determination circuit. The scintillator array may interact with a plurality of photons at respective interaction points to generate a plurality of optical signals. The one or more photoelectric converters may convert the plurality of optical signals to one or more electric signals that each include an energy signal and a time signal. The one or more energy information determination circuits may generate energy information based on the one or more energy signals. The time information determination circuit may generate time information based on the one or more time signals. The processing engine may generate an image based on the energy information and the time information.
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