High precision superconducting cavity diagnostics with higher order mode measurements
Experiments at the FLASH facility at DESY have demonstrated that the higher order modes induced in superconducting cavities can be used to provide a variety of beam and cavity diagnostics. The axes of the modes can be determined from the beam orbit that produces minimum power in the dipole HOM modes...
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American Physical Society
2006-11-01
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Series: | Physical Review Special Topics. Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevSTAB.9.112802 |
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doaj-c13519e16a5e4bfebcfbe730663b3e822020-11-25T00:20:49ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022006-11-0191111280210.1103/PhysRevSTAB.9.112802High precision superconducting cavity diagnostics with higher order mode measurementsStephen MolloyJosef FrischDoug McCormickJustin MayMarc RossTonee SmithNicoleta BaboiOlaf HenslerLyudvig PetrosyanOlivier NapolyRita C. PaparellaClaire SimonNathan EddySergei NagaitsevManfred WendtExperiments at the FLASH facility at DESY have demonstrated that the higher order modes induced in superconducting cavities can be used to provide a variety of beam and cavity diagnostics. The axes of the modes can be determined from the beam orbit that produces minimum power in the dipole HOM modes. The phase and amplitude of the dipole modes can be used to obtain high resolution beam position information, and the phase of the monopole modes to measure the beam phase relative to the accelerator rf. For most superconducting accelerators, the existing higher order mode couplers provide the necessary signals, and the downmix and digitizing electronics are straightforward, similar to those for a conventional beam position monitor.http://doi.org/10.1103/PhysRevSTAB.9.112802 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Stephen Molloy Josef Frisch Doug McCormick Justin May Marc Ross Tonee Smith Nicoleta Baboi Olaf Hensler Lyudvig Petrosyan Olivier Napoly Rita C. Paparella Claire Simon Nathan Eddy Sergei Nagaitsev Manfred Wendt |
spellingShingle |
Stephen Molloy Josef Frisch Doug McCormick Justin May Marc Ross Tonee Smith Nicoleta Baboi Olaf Hensler Lyudvig Petrosyan Olivier Napoly Rita C. Paparella Claire Simon Nathan Eddy Sergei Nagaitsev Manfred Wendt High precision superconducting cavity diagnostics with higher order mode measurements Physical Review Special Topics. Accelerators and Beams |
author_facet |
Stephen Molloy Josef Frisch Doug McCormick Justin May Marc Ross Tonee Smith Nicoleta Baboi Olaf Hensler Lyudvig Petrosyan Olivier Napoly Rita C. Paparella Claire Simon Nathan Eddy Sergei Nagaitsev Manfred Wendt |
author_sort |
Stephen Molloy |
title |
High precision superconducting cavity diagnostics with higher order mode measurements |
title_short |
High precision superconducting cavity diagnostics with higher order mode measurements |
title_full |
High precision superconducting cavity diagnostics with higher order mode measurements |
title_fullStr |
High precision superconducting cavity diagnostics with higher order mode measurements |
title_full_unstemmed |
High precision superconducting cavity diagnostics with higher order mode measurements |
title_sort |
high precision superconducting cavity diagnostics with higher order mode measurements |
publisher |
American Physical Society |
series |
Physical Review Special Topics. Accelerators and Beams |
issn |
1098-4402 |
publishDate |
2006-11-01 |
description |
Experiments at the FLASH facility at DESY have demonstrated that the higher order modes induced in superconducting cavities can be used to provide a variety of beam and cavity diagnostics. The axes of the modes can be determined from the beam orbit that produces minimum power in the dipole HOM modes. The phase and amplitude of the dipole modes can be used to obtain high resolution beam position information, and the phase of the monopole modes to measure the beam phase relative to the accelerator rf. For most superconducting accelerators, the existing higher order mode couplers provide the necessary signals, and the downmix and digitizing electronics are straightforward, similar to those for a conventional beam position monitor. |
url |
http://doi.org/10.1103/PhysRevSTAB.9.112802 |
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