RF control studies for moderate beamtime coupling between SRF cavities

Conference · Sat Aug 01 00:00:00 EDT 1998

OSTI ID:756022

Doolittle, L R; Wang, D X

When an SRF accelerator is designed, there is motivation to move the cavities close together on the beamline. Assuming the beamline apertures are not shrunk as well, this compaction (which will increase the overall accelerating gradient and/or lower the dynamic cryogenic heat load) increases the inter-cavity coupling. Within certain limits, the control system can compensate for this coupling by retuning each of the cavities. This paper describes constraints on the RF system, tuners, couplers, and control systems that are required to provide stable operation of cavities in the presence of inter-cavity coupling that exceeds the loaded bandwidth of an individual cavity.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 756022
• Report Number(s): DOE/ER/40150-1362; JLAB-ACE-98-02; TRN: US0002708
• Resource Relation: Conference: 1998 Linear Accelerator Conference, Chicago, IL (US), 08/24/1998--08/28/1998; Other Information: PBD: 1 Aug 1998
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
RF SYSTEMS
SUPERCONDUCTING CAVITY RESONATORS
TUNING
COMPUTERIZED CONTROL SYSTEMS
OPERATION