公开(公告)号：US10466372B2

公开(公告)日：2019-11-05

申请号：US14981953

申请日：2015-12-29

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Kejun Kang ,  Shuwei Li ,  Qingjun Zhang ,  Yuanjing Li ,  Yulan Li ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Weibin Zhu ,  Xiaolin Zhao ,  Huishao He

IPC: G01T7/00 ,  G01T1/20 ,  H04N5/57 ,  G01T1/16 ,  H01L27/30 ,  H05G1/36 ,  G21K1/02 ,  G01T1/17 ,  G01V5/00 ,  H04N5/369 ,  G06T1/00

Abstract: The present invention discloses an X-ray beam intensity monitoring device and an X-ray inspection system. The X-ray beam intensity monitoring device comprises an intensity detecting module and a data processing module, wherein the intensity detecting module is adopted to be irradiated by the X-ray beam and send a detecting signal, the data processing module is coupled with the intensity detecting module to receive the detecting signal and output an X-ray beam intensity monitoring signal, wherein the X-ray beam intensity monitoring signal includes a dose monitoring signal for the X-ray beam and a brightness correction signal for correcting signal values of the X-ray beam. The X-ray beam intensity monitoring device can simultaneously perform dose monitoring and brightness monitoring, thereby improving the service efficiency of the X-ray beam intensity monitoring device. Moreover, the monitoring result of the X-ray beam intensity can be more accurate and reliable.

公开(公告)号：US20180164449A1

公开(公告)日：2018-06-14

申请号：US15719571

申请日：2017-09-29

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Yuanjing Li ,  Ziran Zhao ,  Jianmin Li ,  Yulan Li ,  Weibin Zhu ,  Xiang Zou ,  Qingjun Zhang ,  Chunguang Zong ,  Xiaolin Zhao ,  Shuwei Li ,  Junxiao Wang

IPC: G01T1/24

CPC classification number: G01T1/248 ,  G01T1/17

Abstract: This disclosure provides a radiation detection apparatus and a method, a data processing method and a processor, which relates to the field of radiation detection technology. Wherein, the radiation detection apparatus of this disclosure comprises: a radiation detector which generates an electrical signal by interacting with X-rays; an Analog-to-Digital Converter (ADC) which is coupled to the radiation detector and transmits the electrical signal to a waveform data; and a data processor which receives the waveform data from the ADC, determines the number of single photon signals according to the waveform data, and determines whether an integral signal and/or a count signal of the waveform data will be used for imaging according to the number of the single photon signals.

公开(公告)号：US10520402B2

公开(公告)日：2019-12-31

申请号：US16232062

申请日：2018-12-26

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Ge Li ,  Biao Cao ,  Jingli Xie ,  Xiaolin Zhao ,  Qiufeng Ma

IPC: G01N1/24 ,  G01N1/22 ,  G01N1/40 ,  G01N30/30

Abstract: The present disclosure relates to the technical field of safety detection, and in particular to a sample collecting and introducing device and a detection system. The sample collecting and introducing device provided by the present disclosure includes a sampling device for collecting a sample, and a semipermeable membrane device for extracting the sample collected by the sampling device and conveying the extracted sample to detection equipment, wherein the sampling device is provided with an air guide cavity, the air guide cavity is configured to guide airflow carrying the sample to flow to the semipermeable membrane device, the semipermeable membrane device is provided with a semipermeable membrane which is arranged outside the sampling device. In the present disclosure, the size of the semipermeable membrane is no longer limited by the sampling device, and therefore the difficulty of increasing the area of the semipermeable membrane is reduced.

公开(公告)号：US10338236B2

公开(公告)日：2019-07-02

申请号：US15719571

申请日：2017-09-29

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Yuanjing Li ,  Ziran Zhao ,  Jianmin Li ,  Yulan Li ,  Weibin Zhu ,  Xiang Zou ,  Qingjun Zhang ,  Chunguang Zong ,  Xiaolin Zhao ,  Shuwei Li ,  Junxiao Wang

IPC: G01T1/24 ,  G01T1/17

Abstract: This disclosure provides a radiation detection apparatus and a method, a data processing method and a processor, which relates to the field of radiation detection technology. Wherein, the radiation detection apparatus of this disclosure comprises: a radiation detector which generates an electrical signal by interacting with X-rays; an Analog-to-Digital Converter (ADC) which is coupled to the radiation detector and transmits the electrical signal to a waveform data; and a data processor which receives the waveform data from the ADC, determines the number of single photon signals according to the waveform data, and determines whether an integral signal and/or a count signal of the waveform data will be used for imaging according to the number of the single photon signals.