Microphonics measurements in SRF cavities for RIA

Microphonics measurements in SRF cavities for RIA

Phase stabilization of the RIA drift tube cavities in the presence of microphonics will be a key issue for RIA. Due to the relatively low beam currents (/spl les/0.5 pmA) required for the RIA driver, microphonics will impact the rf power required to control the cavity fields. Microphonics measuremen...

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Bibliographische Detailangaben
Hauptverfasser: Kelly, M.P., Shepard, K.W., Kedzie, M., Fuerst, J.D., Sharamentov, S., Delayen, J.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
ACCELERATORS
BEAM CURRENTS
CAVITIES
CEBAF ACCELERATOR
DESIGN
DRIFT TUBES
Frequency
GEOMETRY
HELIUM
MATERIALS SCIENCE
Monitoring
PARTICLE ACCELERATORS
Performance evaluation
Phase locked loops
PRODUCTION
RESONANCE
Signal generators
STABILIZATION
STAINLESS STEELS
Steel
Testing
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Beschreibung
Zusammenfassung:Phase stabilization of the RIA drift tube cavities in the presence of microphonics will be a key issue for RIA. Due to the relatively low beam currents (/spl les/0.5 pmA) required for the RIA driver, microphonics will impact the rf power required to control the cavity fields. Microphonics measurements on the ANL /spl beta/=0.4 single spoke cavity and on the ANL /spl beta/=0.4 two-cell spoke cavity have been performed many at high fields and using a new "cavity resonance monitor" device developed in collaboration with JLAB. Tests on a cold two-cell spoke are the first ever on a multi-cell spoke geometry. The design is essentially a production model with an integral stainless steel housing to hold the liquid helium bath.
ISSN:1063-3928
2152-9647
DOI:10.1109/PAC.2003.1289682