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    SINGLE LIGHT PHOTON COUNTING RADIATION DETECTOR AND DATA TRANSMISSION METHODS
    2.
    发明公开
    SINGLE LIGHT PHOTON COUNTING RADIATION DETECTOR AND DATA TRANSMISSION METHODS 审中-公开

    公开(公告)号：US20240125948A1

    公开(公告)日：2024-04-18

    申请号：US18486026

    申请日：2023-10-12

    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ,  National Technology & Engineering Solutions of Sandia, LLC

    Inventor： Joshua W. Cates ,  Woon-Seng Choong ,  Erik Brubaker

    IPC: G01T1/20 ,  G01T1/24

    CPC classification number: G01T1/20184 ,  G01T1/248

    Abstract: A single photon radiation detector is designed for a particular radiation source fluence, such that an incident radiation photon strikes a scintillator monolith, creating scintillation photons, which are amplified by appropriately sized channels of photomultipliers optically coupled to the scintillator monolith. The photomultiplier output is electronically shaped into a corresponding stream of scintillation pulses (otherwise referred to as scintillation photons) that pass through a comparator to produce a bitstream of the detected scintillation photons, which is sampled into a field programmable gate array (FPGA) acting as a giga-sample transceiver to produce time-to-digital conversions, capable of producing an output data stream of 10's-of-giga-samples per second or more. Appropriate design ensures sparsity of scintillation photon arrival, so that each photon in the bitstream corresponds to a single incident scintillation photon.

    X-ray imaging panel and method for fabricating the same
    4.
    发明授权
    X-ray imaging panel and method for fabricating the same 有权

    公开(公告)号：US11714203B2

    公开(公告)日：2023-08-01

    申请号：US17718711

    申请日：2022-04-12

    Applicant: Sharp Display Technology Corporation

    Inventor： Makoto Nakazawa ,  Rikiya Takita ,  Fumiki Nakano

    IPC: G01T1/24 ,  H01L27/146

    CPC classification number: G01T1/241 ,  G01T1/248 ,  H01L27/1462 ,  H01L27/14663

    Abstract: According to an aspect, an active matrix substrate of an X-ray imaging panel includes: an active matrix substrate having a pixel region including a plurality of pixels; and a scintillator that converts X-rays projected onto the X-ray imaging panel to scintillation light. The plurality of pixels include respective photoelectric conversion elements. The active matrix substrate further includes a first planarizing film that covers the photoelectric conversion elements, is formed from an organic resin film, and has a plurality of first contact holes and a first wiring line that is formed in the first contact holes and in a layer upper than the first planarizing film and connected to the photoelectric conversion elements within the first contact holes.

    METHOD AND SYSTEM FOR REAL-TIME PROCESSING OF PULSE PILE-UP EVENT
    5.
    发明申请
    METHOD AND SYSTEM FOR REAL-TIME PROCESSING OF PULSE PILE-UP EVENT 审中-公开

    公开(公告)号：US20180321391A1

    公开(公告)日：2018-11-08

    申请号：US15773997

    申请日：2016-11-04

    Applicant: RAYCAN TECHNOLOGY CO., LTD. (SU ZHOU)

    Inventor： Xiaoke WU ,  Jun ZHU ,  Ming NIU ,  Tong LIU ,  Qingguo XIE

    IPC: G01T1/164 ,  G01T1/20 ,  G01T1/24

    CPC classification number: G01T1/1642 ,  A61B6/037 ,  G01T1/161 ,  G01T1/164 ,  G01T1/1648 ,  G01T1/2006 ,  G01T1/248 ,  G01T1/29

    Abstract: A method for real-time processing of a pulse pile-up event comprises the following steps of: generating a fitted baseline value lookup table and a fitted energy value lookup table for a pulse falling edge, using a multi-voltage threshold sampling method to identify piled-up pulses and trigger a procedure of processing pulse signals; and using pulse priori information and acquired pulse information to acquire information of an incorrectly sampled portion due to a pulse pile-up by looking up in the tables, so as to recover information of the pile-up pulses in real time. First, in the disclosure the multi-voltage threshold sampling method is proposed to identify pile-up pulses at a high count rate and trigger a procedure of processing pulse signals. Next, pulse priori information and acquired pulse information are used to acquire information of an incorrectly sampled portion due to a pulse pile-up by looking up in the tables, to recover information of the piled-up pulses in real time. The method according to the disclosure is simple, highly efficient, can be realized easily in a real-time data acquisition system of a detector level, and is still capable of achieving a preferable effect of recovering formation of piled-up pulses at a low sampling rate.

    Systems and methods for minimizing silicon photomultiplier signal propagation delay dispersion and improve timing
    10.
    发明授权
    Systems and methods for minimizing silicon photomultiplier signal propagation delay dispersion and improve timing 有权

    公开(公告)号：US09720109B2

    公开(公告)日：2017-08-01

    申请号：US14609193

    申请日：2015-01-29

    Applicant: General Electric Company

    Inventor： Jianjun Guo ,  Sergei Ivanovich Dolinsky

    IPC: H04N5/335 ,  G01T1/24 ,  G01T1/20 ,  G01T1/208

    CPC classification number: G01T1/248 ,  G01T1/2018 ,  G01T1/208

    Abstract: A silicon photomultiplier array including a plurality of microcells arranged in subgroupings, each microcell of a respective subgrouping providing a pulse output in response to an incident radiation. Each microcell output interconnected by respective traces of equal length to either a summing node or an integrated buffer amplifier. Each respective summing node configured to sum the pulse outputs of a first subgroup of the microcell subgroupings, and each respective integrated buffer amplifier configured to sum the pulse outputs of each microcell of a second subgrouping, the respective integrated buffer amplifier located on the silicon photomultiplier array within the second subgroup of microcells. The plurality of microcells arranged in one of columns and rows, and a first group of the arranged plurality of microcells being a mirror image of a second group of the arranged plurality of microcells about a midpoint between one of the columns and rows.

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