Grating-based differential phase contrast imaging
US9757081B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2013 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Dec 19, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/504
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An imaging system (200) is configured for grating-based DPCI. The imaging system includes a rotating gantry (204) that rotates around an examination region, a radiation source (208), supported by the rotating gantry, that emits radiation that traverses the examination region, a detector array (212), supported by the rotating gantry, that detects radiation that traverses the examination region, and an interferometer, supported by the rotating gantry, which includes a source grating (214), a phase grating (218), and an absorber grating (220). At least one of the phase grating or the absorber grating continuously translates with respect to the other during an integration period and the detector generates and outputs an electrical signal indicative of the detected radiation, wherein the electrical signal includes an absorption component, a coherence component and a phase component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.