公开(公告)号：US10942290B2

公开(公告)日：2021-03-09

申请号：US16626169

申请日：2019-05-16

Applicant: Nuctech Company Limited

Inventor： Li Zhang ,  Zhiqiang Chen ,  Yunda Sun ,  Xin Jin ,  Ming Chang ,  Xiaofei Xu

IPC: G01N23/20091 ,  G01V5/00

Abstract: The present application discloses an X-ray detection system and method. The detection system includes: a beam source generator, first detectors, a second detector, a collimating device and a processor. The first detectors and the second detector are alternately arranged in a transmission direction of an object to be detected. The beam source generator emits a plurality of columns of beam signals, wherein each column of beam signals comprises a plurality of beam signals; the first detectors receive a plurality of columns of transmitted beam signals passing through the object; the collimating device performs a specificity selection from a plurality of columns of scattered beam signals passing through the object; the second detector receives scattered beam signals selected by the collimating device; and the processor determines a detection result of the object according to the plurality of columns of transmitted beam signals and the selected scattered beam signals.

公开(公告)号：US11906447B2

公开(公告)日：2024-02-20

申请号：US17471725

申请日：2021-09-10

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Li Zhang ,  Xiaofei Xu ,  Le Shen ,  Ming Chang ,  Hu Tang ,  Xin Jin ,  Yunda Sun

IPC: G01N23/046 ,  G01N23/083 ,  G01N23/10 ,  G01V5/00

CPC classification number: G01N23/10 ,  G01N23/046 ,  G01N23/083 ,  G01N2223/1016 ,  G01N2223/204 ,  G01N2223/3301 ,  G01N2223/335 ,  G01N2223/3307 ,  G01N2223/3308 ,  G01N2223/419 ,  G01N2223/639 ,  G01N2223/643 ,  G01V5/005

Abstract: A multi-channel static CT device is provided, and the multi-channel static CT device includes: a scanning channel including a plurality of scanning sub-channels; a distributed X-ray source including a plurality of ray emission points arranged around the scanning channel; and a detector module including a plurality of detectors arranged around the scanning channel, wherein the plurality of detectors are arranged corresponding to the plurality of ray emission points.

公开(公告)号：US10955572B2

公开(公告)日：2021-03-23

申请号：US16137547

申请日：2018-09-21

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Li Zhang ,  Zhiqiang Chen ,  Sen Wang ,  Xiaofei Xu ,  Yuanjing Li ,  Xin Jin

IPC: G01T7/00 ,  G01T1/16 ,  G01T1/36

Abstract: The present disclosure relates to a data processing method and device. The data processing method comprises steps of: performing detector response calibration based on a detector response obtained by an incidence of rays with known energy into a detector to obtain a detector response model; obtaining a photon counting model of the detector between incident energy spectrum data of the detector and detected energy spectrum data of the detector based on the detector response model; and performing a deconvolution operation on counts of photons in respective energy regions in the detected energy spectrum data of the detector based on the photon counting model of the detector, to obtain real counts of photons in respective energy regions in the incident energy spectrum data of the detector.