Automatic system for precise collimation of radiation
US3947689A · kind A · utility
23Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1974 |
| Grant date | Mar 30, 1976 |
| Priority date | — |
| Expiry date | May 6, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/548
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiographic system comprising a radiation source disposed to direct a beam of radiation through an adjustable aperture in an aligned beam-limiting device and onto an image receptor located at a selected distance from the source, and automatic means for making a unidirectional final adjustment of the aperture to provide the beam with a cross-sectional area which conforms to the size of the image receptor at the selected distance from the source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.