Extractive electrode situated in the vicinity of the particle source of accelerators of the cyclotron type
US4146811A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1977 |
| Grant date | Mar 27, 1979 |
| Priority date | — |
| Expiry date | Dec 7, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H7/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An extractive electrode allowing to reduce the vertical focusing and defocusing effect of the hyperfrequency electrical field used for accelerating the particles of a beam within an accelerator of cyclotron type. The extractive electrode comprises a metallic block having a substantially prismatic shape and provided in its entry face facing the particle source with at least a window which opens onto a deep notch delimited by two curved lateral walls forming a channel C for the passage of the beam. A median element located within this channel C allows to obtain two separated channels for the passage of the two beams corresponding to two harmonic operating frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.