Scanning equalization radiography with stationary equalization detector
US4947416A · kind A · utility
9Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1988 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Oct 21, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4291
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A scanning type radiographic imaging system is disclosed which employs novel means to produce comparable radiation intensity in the object regions being radiographed. Such result is achieved with variable radiation attenuating elements having their attenuation controlled during this scanning process with novel feedback control means. The feedback control is produced with a stationary detection unit having circuit means which generates the electrical control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.