Microphonics Measurements in SRF Cavities for RIA

Conference · Thu May 01 00:00:00 EDT 2003

DOI:https://doi.org/10.1109/PAC.2003.1289682· OSTI ID:955401

Kelly, M P; Fuerst, Joel; Kedzie, M; Sharamentov, S I; Shepard, Kenneth; Delayen, Jean

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 (lte 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 Beta=0.4 single spoke cavity and on the ANL 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.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 955401
• Report Number(s): JLAB-ACC-03-97; 7691408; DOE/ER/40150-4432; TRN: US1004654
• Resource Relation: Journal Volume: 2; Conference: Paper compiled for PAC 2003
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
36 MATERIALS SCIENCE
CEBAF ACCELERATOR
BEAM CURRENTS
CAVITIES
DESIGN
DRIFT TUBES
GEOMETRY
HELIUM
PRODUCTION
RESONANCE
STABILIZATION
STAINLESS STEELS
ACCELERATORS