Radiological imaging apparatus and transmission imaging method
US7501633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Nov 16, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2985
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A radiological imaging apparatus includes an imaging apparatus having an opening for insertion of a bed thereinto, and an attenuation correction data creating device. The imaging has a plurality of radiation detectors disposed around the opening and a plurality of gamma ray generation units residing between the opening and the radiation detectors disposed at a position nearest to the opening and being placed in a longitudinal direction of the bed. Each γ-ray generation unit has γ-ray sources of single photon emission nuclear species and is arranged to externally radiate a γ-ray alternately from either one of the γ-ray generators toward the opening. The data creator prepares attenuation correction data based on a detection signal as output from the radiation detector due to the incoming radiation of γ-rays from the γ-ray generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.