公开(公告)号：US10942137B2

公开(公告)日：2021-03-09

申请号：US16364389

申请日：2019-03-26

申请人： The Government of the United States of America, as represented by the Secretary of Homeland Security

发明人： Robert E. Klueg

IPC分类号： G01T1/36 ,  G01N23/087

摘要： An X-ray imaging system for reconstructing X-ray spectra includes an integrating detector and a measurement mask, including at least one physical filter, positioned between the integrating detector and an X-ray source spectrum. The integrating detector receives a masked X-ray spectrum after the source spectrum has been filtered in accordance with the measurement mask. As a result of the measurement mask containing one or more physical filters being combined, a measurement mask having energy band-pass regions can be generated, to cover the source spectrum. Measured data, based on the masked X-ray spectrum and characteristics of the measurement mask, is collected from the integrating detector. The X-ray imaging system reconstructs an X-ray spectrum and generates the reconstructed X-ray spectrum based on applying a predetermined algorithm, such as total variation minimization reconstruction, to the measured data.

公开(公告)号：US11079343B2

公开(公告)日：2021-08-03

申请号：US17158676

申请日：2021-01-26

申请人： The Government of the United States of America, as represented by the Secretary of Homeland Security

发明人： Robert E. Klueg

IPC分类号： G01T1/36 ,  G01N23/087

摘要： An X-ray imaging system for reconstructing X-ray spectra includes an integrating detector and a measurement mask, including at least one physical filter, positioned between the integrating detector and an X-ray source spectrum. The integrating detector receives a masked X-ray spectrum after the source spectrum has been filtered in accordance with the measurement mask. As a result of the measurement mask containing one or more physical filters being combined, a measurement mask having energy band-pass regions can be generated, to cover the source spectrum. Measured data, based on the masked X-ray spectrum and characteristics of the measurement mask, is collected from the integrating detector. The X-ray imaging system reconstructs an X-ray spectrum and generates the reconstructed X-ray spectrum based on applying a predetermined algorithm, such as total variation minimization reconstruction, to the measured data.

公开(公告)号：US20210172889A1

公开(公告)日：2021-06-10

申请号：US17158676

申请日：2021-01-26

申请人： The Government of the United States of America, as represented by the Secretary of Homeland Security

发明人： Robert E. Klueg

IPC分类号： G01N23/087 ,  G01T1/36

摘要： An X-ray imaging system for reconstructing X-ray spectra includes an integrating detector and a measurement mask, including at least one physical filter, positioned between the integrating detector and an X-ray source spectrum. The integrating detector receives a masked X-ray spectrum after the source spectrum has been filtered in accordance with the measurement mask. As a result of the measurement mask containing one or more physical filters being combined, a measurement mask having energy band-pass regions can be generated, to cover the source spectrum. Measured data, based on the masked X-ray spectrum and characteristics of the measurement mask, is collected from the integrating detector. The X-ray imaging system reconstructs an X-ray spectrum and generates the reconstructed X-ray spectrum based on applying a predetermined algorithm, such as total variation minimization reconstruction, to the measured data.

公开(公告)号：US20200309720A1

公开(公告)日：2020-10-01

申请号：US16364389

申请日：2019-03-26

申请人： The Government of the United States of America, as represented by the Secretary of Homeland Security

发明人： Robert E. Klueg

IPC分类号： G01N23/087 ,  G01T1/36

摘要： An X-ray imaging system for reconstructing X-ray spectra includes an integrating detector and a measurement mask, including at least one physical filter, positioned between the integrating detector and an X-ray source spectrum. The integrating detector receives a masked X-ray spectrum after the source spectrum has been filtered in accordance with the measurement mask. As a result of the measurement mask containing one or more physical filters being combined, a measurement mask having energy band-pass regions can be generated, to cover the source spectrum. Measured data, based on the masked X-ray spectrum and characteristics of the measurement mask, is collected from the integrating detector. The X-ray imaging system reconstructs an X-ray spectrum and generates the reconstructed X-ray spectrum based on applying a predetermined algorithm, such as total variation minimization reconstruction, to the measured data.