Parallel transverse field (PTF) tilted and collimated detectors
US9700269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Aug 3, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4291
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computed tomography (CT) detector apparatus to increase energy resolution at a high count rate includes a plurality of fixed photon-counting detector (PCD) modules arranged in a ring, each PCD module including two Parallel-Transverse-Field (PTF) PCDs that are tilted with respect to a normal direction to a circumferential direction of the ring. Each PTF PCD includes a rectangular semiconductor crystal having a first face and a second face, wherein the first face and the second face are parallel, a cathode side including a cathode electrode covering the first face, and an anode side including a plurality of anode pixels on the second face. Each PTF PCD includes a collimator attached to a predetermined region of the PTF PCD, wherein the collimator blocks incident the X-rays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.