Contrast phantom
US6905245B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2003 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Jun 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A contrast phantom for assessing the characteristic, exposure-related signal and noise response and dynamic range of an image recording and detection system. The contrast phantom is composed of an absorber medium having a sudden K-edge absorption change of the mass attenuation coefficient for at least one photon energy level in-between the mean and maximum energies of the lowest energy spectrum it is subjected to. The invention further provides a method for assessing the characteristic, exposure-related signal and noise response and dynamic range of an image recording and detection system with the aforementioned contrast phantom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.