Invention Grant
- Patent Title: Differential phase-contrast imaging with circular gratings
- Patent Title (中): 圆形光栅的差分相位对比成像
-
Application No.: US13260380Application Date: 2010-03-15
-
Publication No.: US09269471B2Publication Date: 2016-02-23
- Inventor: Ewald Roessl , Thomas Koehler , Gerhard Martens
- Applicant: Ewald Roessl , Thomas Koehler , Gerhard Martens
- Applicant Address: NL Eindhoven
- Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP09156474 20090327
- International Application: PCT/IB2010/051098 WO 20100315
- International Announcement: WO2010/109368 WO 20100930
- Main IPC: A61B6/03
- IPC: A61B6/03 ; G21K7/00 ; A61B6/00
Abstract:
An X-ray differential phase-contrast imaging system has three circular gratings. The circular gratings are aligned with the optical axis of the radiation beam and a phase stepping is performed along the optical axis with the focal spot, the phase grating and/or the absorber grating. The signal measured is the phase-gradient in radial direction away from the optical axis.
Public/Granted literature
- US20120008747A1 DIFFERENTIAL PHASE-CONTRAST IMAGING WITH CIRCULAR GRATINGS Public/Granted day:2012-01-12
Information query
