公开(公告)号：US11639903B2

公开(公告)日：2023-05-02

申请号：US17322635

申请日：2021-05-17

Applicant: Battelle Memorial Institute

Inventor： Erin A. Miller ,  Richard E. Jacob ,  Nikhil S. Deshmukh ,  Cynthia L. Warner ,  Richard S. Wittman ,  Luke W. Campbell ,  Dustin M. Kasparek ,  Andy Gilbert ,  Stanley L. Owsley, Jr. ,  Kurt L. Silvers ,  Mital A. Zalavadia

IPC: G01N23/041 ,  G01N23/083 ,  G01N23/10 ,  A61B6/00 ,  A61B6/06 ,  G01N23/18

Abstract: Method include emitting x-rays from an x-ray source, directing a first portion of the x-rays through an object grating situated adjacent to an object while the object is scanned relative to the object grating along a scan direction, directing a second portion of the x-rays through the object and subsequently through a detector grating without transmitting through the object grating, wherein the object grating and detector grating are adjacently arranged in a field of view of the x-rays sequentially with respect to each other in the scan direction, and receiving the first portion transmitted through the object and object grating with a first portion of a detector and receiving the second portion transmitted through the object and the detector grating with a second portion of the detector adjacent to the first portion of the detector. Systems are also disclosed, along with related techniques for beam hardening correction.

公开(公告)号：US20210349040A1

公开(公告)日：2021-11-11

申请号：US17322635

申请日：2021-05-17

Applicant: Battelle Memorial Institute

Inventor： Erin A. Miller ,  Richard E. Jacob ,  Nikhil S. Deshmukh ,  Cynthia L. Warner ,  Richard S. Wittman ,  Luke W. Campbell ,  Dustin M. Kasparek ,  Andy Gilbert ,  Stanley L. Owsley, JR. ,  Kurt L. Silvers ,  Mital A. Zalavadia

IPC: G01N23/041 ,  G01N23/083 ,  G01N23/10 ,  A61B6/00 ,  A61B6/06

Abstract: Method include emitting x-rays from an x-ray source, directing a first portion of the x-rays through an object grating situated adjacent to an object while the object is scanned relative to the object grating along a scan direction, directing a second portion of the x-rays through the object and subsequently through a detector grating without transmitting through the object grating, wherein the object grating and detector grating are adjacently arranged in a field of view of the x-rays sequentially with respect to each other in the scan direction, and receiving the first portion transmitted through the object and object grating with a first portion of a detector and receiving the second portion transmitted through the object and the detector grating with a second portion of the detector adjacent to the first portion of the detector. Systems are also disclosed, along with related techniques for beam hardening correction.