LLRF System for the CEBAF Separator Upgrade

Conference · Mon Dec 01 00:00:00 EST 2014

OSTI ID:1189938

Plawski, Tomasz E. ^[1]; Bachimanchi, Ramakrishna ^[1]; Hovater, J. Curt ^[1]; Seidman, David J. ^[1]; Wissmann, Mark J. ^[1]

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1. JLAB

The Continuous Electron Beam Accelerator Facility (CEBAF) energy upgrade from 6 GeV to 12 GeV includes the installation of four new 748.5 MHz normal conducting deflecting cavities in the 5th pass extraction region. This system will work together with the existing 499 MHz RF Separator in order to allow simultaneous delivery of the beam to four CEBAF experimental halls. The RF system employs two digital LLRF systems controlling four cavities in a vector sum. Cavity tune information of the individual cavities is also obtained using a multiplexing scheme of the forward and reflected RF signals. In this paper we will present detailed LLRF design and the current status of the CEBAF 748.5/499 MHz beam extraction system.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1189938
• Report Number(s): JLAB-ACE-14-1936; DOE/OR/23177-3155
• Resource Relation: Conference: LINAC14, 31 August - 5 September 2014, Geneva, Switzerland
• Country of Publication: United States
• Language: English