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High precision SC cavity alignment measurements with higher order modes
- Source :
- Measurement Science and Technology. 18:2314-2319
- Publication Year :
- 2007
- Publisher :
- IOP Publishing, 2007.
-
Abstract
- Experiments at the FLASH linac at DESY have demonstrated that the higher order modes (HOMs) induced in superconducting cavities can be used to provide a variety of beam and cavity diagnostics. The centers of the cavities can be determined from the beam orbit which produces minimum power in the dipole HOM modes. The phase and amplitude of the dipole modes can be used as a high resolution beam position monitor. For most superconducting accelerators, the existing HOM couplers provide the necessary signals, and the downmix and digitizing electronics are straightforward, similar to those for a conventional BPM.
- Subjects :
- Physics
010308 nuclear & particles physics
business.industry
Applied Mathematics
Phase (waves)
Electrical engineering
Particle accelerator
DESY
01 natural sciences
Linear particle accelerator
law.invention
Dipole
Amplitude
Optics
law
0103 physical sciences
Orbit (dynamics)
Physics::Accelerator Physics
010306 general physics
business
Instrumentation
Engineering (miscellaneous)
Computer Science::Databases
Beam (structure)
Subjects
Details
- ISSN :
- 13616501 and 09570233
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Measurement Science and Technology
- Accession number :
- edsair.doi...........163354fcbf529904607d1da6dda52095
- Full Text :
- https://doi.org/10.1088/0957-0233/18/8/004