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Neutrino Factory/Muon Collider Document 542-v1

RF Breakdown in Magnetic Fields: Previous work, recent theory and future plans

Document #:
NFMCC-doc-542-v1
Document type:
Conference Publication
Submitted by:
Diktys Stratakis
Updated by:
Diktys Stratakis
Document Created:
26 Oct 2009, 11:11
Contents Revised:
26 Oct 2009, 11:11
Metadata Revised:
26 Oct 2009, 11:11
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Abstract:
Recent experiments on the breakdown of rf cavities revealed severe surface damage and a reduction of the maximum accelerating gradient after applying an external magnetic field. This finding implies serious problems for cooling lattices in wherein rf cavities and external magnetic fields coexist, such as those of the proposed neutrino factory and muon collider. An experimental program that could study those problems and their possible solutions are discussed. Emphasis is given to a magnetically insulated cavity design in which the walls are parallel to the magnetic field lines and consequently damage from field emission is expected to be suppressed.
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