Advanced collimator aperture curve
US9395313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Aug 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A CT imaging system and a method for determining a CT collimator slit profile. The method includes determining a profile of two opposite edges of the collimator slit in a longitudinal direction thereof based on the following: a vertical distance between a focus of a radiation source to the collimator slit, a vertical distance between the focus and the radiation detector, an inclination angle between adjacent detector elements, a length of each detector element, a desired width of projection on the radiation detector by the radiation rays passing through the slit whose longitudinal edge profile is to be determined, and an offset angle of a connecting line from a point on a longitudinal center line of the slit to the focus relative to a plane passing said focus and perpendicular to the slit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.