Radiation imaging apparatus
US7440538B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2007 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Mar 21, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an apparatus without a helical movement, a reconstruction error considerably increases as a radiation angle increases. In a prior art embodiment, for example, a one-side value of the radiation angle is 9.5 degrees, and it is predicted that the reconstruction error at its periphery considerably increases. In a radiation imaging apparatus including a radiation generating source for radiating radiation to a subject, a rotating unit for rotating the subject exposed to the radiation from the radiation generating source, and a two-dimensional detector for detecting radiation, a distance between the radiation generating source and the two-dimensional detector is approximately set to a value equal to or more than 240 cm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.