Variable field coupled cavity resonator circuit
US4382208A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1980 |
| Grant date | May 3, 1983 |
| Priority date | — |
| Expiry date | Jul 28, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H7/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a resonant chain of coupled cavities such as used in a standing-wave linear particle accelerator it is often desirable to change the field strength in some cavities relative to some others. For example, if the output particle energy of an accelerator is changed by varying the fields of all cavities, the distribution of energies of output particles is disturbed. This distribution is largely controlled by the fields in the first group of cavities traversed by the particle beam. According to the invention, the fields can remain constant in the first group and be varied in following cavities. This is done by varying the distribution of electromagnetic field in one cavity asymmetrically with respect to the preceding and the following cavity. The asymmetric coupling produces different acceleration fields in one part of acceleration structure relative to another part. In an accelerator whose accelerating cavities are coupled via non-interacting side cavities, the different coupling may be produced by making the standing-wave field in one side-cavity asymmetric with respect to its coupling irises.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.