公开(公告)号：US20240393266A1

公开(公告)日：2024-11-28

申请号：US18793678

申请日：2024-08-02

Applicant: Sigray, Inc.

Inventor： David Vine ,  Wenbing Yun ,  Janos Kirz ,  Sheraz Gul ,  Sylvia Jia Yun Lewis ,  Richard Ian Spink

IPC: G01N23/046 ,  G01N23/083

Abstract: An x-ray imaging system includes at least one detector and an x-ray source including an x-ray transmissive vacuum window. The x-ray source is configured to produce diverging x-rays emerging from the vacuum window and propagating along an x-ray propagation axis extending through a region of interest of an object to the at least one detector. The diverging x-rays have propagation paths within an angular divergence angle greater than 1 degree centered on the x-ray propagation axis. The system further includes at least one first motion stage configured to rotate the object about a rotation axis. The system further includes at least one second motion stage configured to move the x-ray source and the at least one detector relative to the object to switch between a laminography configuration and a tomography configuration.

公开(公告)号：US20250027889A1

公开(公告)日：2025-01-23

申请号：US18891371

申请日：2024-09-20

Applicant: Sigray, Inc.

Inventor： David Vine ,  Wenbing Yun ,  Janos Kirz ,  Sheraz Gul ,  Sylvia Jia Yun Lewis ,  Richard Ian Spink

IPC: G01N23/046 ,  G01N23/083

Abstract: A three-dimensional x-ray imaging system includes at least one detector and an x-ray source including an x-ray transmissive vacuum window. The x-ray source is configured to produce diverging x-rays emerging from the vacuum window and propagating along an x-ray propagation axis extending through a region of interest of an object to the at least one detector. The diverging x-rays have propagation paths within an angular divergence angle greater than 1 degree centered on the x-ray propagation axis. The system further includes at least one sample motion stage configured to rotate the object about a rotation axis. The system further includes a sample mount configured to hold the object and comprises a first portion in the propagation paths of at least some of the diverging x-rays and having an x-ray transmission greater than 30% for x-rays having energies greater than 50% of a maximum x-ray energy of an x-ray spectrum of the diverging x-rays.

公开(公告)号：US20230293128A1

公开(公告)日：2023-09-21

申请号：US18176760

申请日：2023-03-01

Applicant: Sigray, Inc.

Inventor： Wenbing Yun ,  David John Vine ,  Sylvia Jia Yun Lewis ,  Sheraz Gul ,  Janos Kirz

IPC: A61B6/00

CPC classification number: A61B6/4266 ,  A61B6/4241

Abstract: An x-ray computed laminography imaging system includes a transmission x-ray source configured to generate x-rays, at least some of the x-rays propagate along an x-ray propagation axis through a region of interest of an object. The system further includes a stage assembly configured to rotate the object about a rotation axis extending through the region of interest. The system further includes at least one x-ray detector configured to intercept at least some of the x-rays propagating along the x-ray propagation axis. The at least one x-ray detector includes a scintillator, at least one optical lens, and two-dimensional pixelated imaging circuitry. The scintillator has a thickness that is substantially parallel to the x-ray propagation axis and the at least one optical lens is configured to receive visible light from the scintillator and to focus the visible light into a two-dimensional image. The at least one optical lens has a depth of focus, and the thickness of the scintillator is in a range of 1 to 20 times the depth of focus.

公开(公告)号：US11686692B2

公开(公告)日：2023-06-27

申请号：US17540608

申请日：2021-12-02

Applicant: Sigray, Inc.

Inventor： David Vine ,  Wenbing Yun ,  Janos Kirz ,  Sheraz Gul ,  Sylvia Jia Yun Lewis ,  Richard Ian Spink

IPC: G01N23/046 ,  G01N23/083

CPC classification number: G01N23/046 ,  G01N23/083 ,  G01N2223/204 ,  G01N2223/309

Abstract: A three-dimensional x-ray imaging system includes at least one detector and an x-ray source including an x-ray transmissive vacuum window. The x-ray source is configured to produce diverging x-rays emerging from the vacuum window and propagating along an x-ray propagation axis extending through a region of interest of an object to the at least one detector. The diverging x-rays have propagation paths within an angular divergence angle greater than 1 degree centered on the x-ray propagation axis. The system further includes at least one sample motion stage configured to rotate the object about a rotation axis. The system further includes a sample mount configured to hold the object and comprises a first portion in the propagation paths of at least some of the diverging x-rays and having an x-ray transmission greater than 30% for x-rays having energies greater than 50% of a maximum x-ray energy of an x-ray spectrum of the diverging x-rays.

公开(公告)号：US12181423B1

公开(公告)日：2024-12-31

申请号：US18406851

申请日：2024-01-08

Applicant: Sigray, Inc.

Inventor： Sylvia Jia Yun Lewis ,  Sheraz Gul ,  Wenbing Yun

IPC: G01N23/00 ,  G01N23/04 ,  G01N23/083

Abstract: An apparatus includes a transmission x-ray source having a window including a target layer of at least one x-ray generating material and an internal aperture configured to allow a first portion of an electron beam to bombard the target layer and to block a second portion of the electron beam from bombarding the target. The first portion of the electron beam has a full-width-at-half-maximum width at the target less than or equal to 1 micron. The window is spaced from the internal aperture by a first distance D1. The apparatus further includes an x-ray detector system having a scintillator, an optical assembly, at least one image sensor configured to receive and respond to visible light by generating electrical signals, and a motorized stage configured to controllably adjust a position of the scintillator such that the scintillator is spaced from the window by a second distance D2, wherein D22/(D1+D2)2 is less than 0.2.

公开(公告)号：US20230384245A1

公开(公告)日：2023-11-30

申请号：US18311558

申请日：2023-05-03

Applicant: Sigray, Inc.

Inventor： David Vine ,  Wenbing Yun ,  Janos Kirz ,  Sheraz Gul ,  Sylvia Jia Yun Lewis ,  Richard Ian Spink

IPC: G01N23/046 ,  G01N23/083

CPC classification number: G01N23/046 ,  G01N2223/204 ,  G01N2223/309 ,  G01N23/083

Abstract: A three-dimensional x-ray imaging system includes at least one detector and an x-ray source including an x-ray transmissive vacuum window. The x-ray source is configured to produce diverging x-rays emerging from the vacuum window and propagating along an x-ray propagation axis extending through a region of interest of an object to the at least one detector. The diverging x-rays have propagation paths within an angular divergence angle greater than 1 degree centered on the x-ray propagation axis. The system further includes at least one sample motion stage configured to rotate the object about a rotation axis. The system further includes a sample mount configured to hold the object and comprises a first portion in the propagation paths of at least some of the diverging x-rays and having an x-ray transmission greater than 30% for x-rays having energies greater than 50% of a maximum x-ray energy of an x-ray spectrum of the diverging x-rays.

公开(公告)号：US12153001B2

公开(公告)日：2024-11-26

申请号：US18311558

申请日：2023-05-03

Applicant: Sigray, Inc.

Inventor： David Vine ,  Wenbing Yun ,  Janos Kirz ,  Sheraz Gul ,  Sylvia Jia Yun Lewis ,  Richard Ian Spink

IPC: G01N23/046 ,  G01N23/083

Abstract: A three-dimensional x-ray imaging system includes at least one detector and an x-ray source including an x-ray transmissive vacuum window. The x-ray source is configured to produce diverging x-rays emerging from the vacuum window and propagating along an x-ray propagation axis extending through a region of interest of an object to the at least one detector. The diverging x-rays have propagation paths within an angular divergence angle greater than 1 degree centered on the x-ray propagation axis. The system further includes at least one sample motion stage configured to rotate the object about a rotation axis. The system further includes a sample mount configured to hold the object and comprises a first portion in the propagation paths of at least some of the diverging x-rays and having an x-ray transmission greater than 30% for x-rays having energies greater than 50% of a maximum x-ray energy of an x-ray spectrum of the diverging x-rays.

公开(公告)号：US11992350B2

公开(公告)日：2024-05-28

申请号：US18176760

申请日：2023-03-01

Applicant: Sigray, Inc.

Inventor： Wenbing Yun ,  David John Vine ,  Sylvia Jia Yun Lewis ,  Sheraz Gul ,  Janos Kirz

IPC: A61B6/42

CPC classification number: A61B6/4266 ,  A61B6/4241

Abstract: An x-ray computed laminography imaging system includes a transmission x-ray source configured to generate x-rays, at least some of the x-rays propagate along an x-ray propagation axis through a region of interest of an object. The system further includes a stage assembly configured to rotate the object about a rotation axis extending through the region of interest. The system further includes at least one x-ray detector configured to intercept at least some of the x-rays propagating along the x-ray propagation axis. The at least one x-ray detector includes a scintillator, at least one optical lens, and two-dimensional pixelated imaging circuitry. The scintillator has a thickness that is substantially parallel to the x-ray propagation axis and the at least one optical lens is configured to receive visible light from the scintillator and to focus the visible light into a two-dimensional image. The at least one optical lens has a depth of focus, and the thickness of the scintillator is in a range of 1 to 20 times the depth of focus.