Block for partially limiting a radiation beam, and a collimator comprising such blocks
US4534052A · kind A · utility
10Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1983 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Apr 4, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides a block for partially limiting a radiation beam, allowing a first part of this beam to be limited corresponding to a first maximum half angle of opening. This rectilinearly movable block comprises a cylindrical active surface. Because of this active surface, said block defines new limits for the beam without modifying the starting orientation of this active surface in dependence on the positions which it may occupy through its rectilinear movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.