Device for measuring the absorption of radiation in a slice of a body
US4160167A · kind A · utility
17Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1977 |
| Grant date | Jul 3, 1979 |
| Priority date | — |
| Expiry date | May 16, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/032
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In third generation computer tomography apparatus, wherein radiation behind the object is measured by means of a large number of detection elements, a detection device comprises a number of detection elements which is larger than necessary for the measurement of the fan-shaped radiation beam, per se, in a direction parallel to the axis of rotation. Means are included for displacing the detection device in the direction of the axis of rotation. Detector element unbalance effects are thus averaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.