Diaphragm for electromagnet radiation beam and its use in a collimation device for this beam
US4856042A · kind A · utility
13Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1987 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Jul 8, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The diaphragm comprises at least one chamber in which there flows a deformable material that attenuates the radiation beam, the chamber being shaped so that the attenuating material can be introduced from outside the chamber and so that it can surround the passage zone of the beam inside the chamber in such a way that the surface of the passage zone varies constantly with the volume of the material present in the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.