High-frequency focusing device for focusing a beam of charged particles accelerated within a cyclotron
US4063125A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Jun 28, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H13/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high-frequency focusing device making it possible to achieve suitable horizontal and vertical focusing of a beam of charged particles issued from a particle source located substantially at the center of a cyclotron, this device comprising pairs of focusing electrodes fixed to the edges of parallel plates forming each sector-shaped Dees of the cyclotron, each pair of electrodes being arranged in such a manner that the particle beam passes between them, these electrodes which project into the acceleration space e of the cyclotron, making it possible to compensate for lack or excessive vertical focusing brought about by the magnetic field developed in the acceleration space e.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.