Actions for New RF Control System for the 12 GeV Energy Upgrade of the CEBAF Accelerator at Jefferson Lab [electronic resource].

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New RF Control System for the 12 GeV Energy Upgrade of the CEBAF Accelerator at Jefferson Lab [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
page(s) 014,002 : digital, PDF file
Additional Creators
Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The CEBAF Accelerator at Jefferson Lab presently consists of 50 MeV injector, two anti-parallel superconducting linacs and two arcs for transporting beam between the linacs. By the mid-1990s, the accelerator was providing electrons up to 5.75 GeV. The 12 GeV Upgrade is a major accelerator project aimed at doubling the energy by adding 10 (five per linac) new high gradient cryomodules, each providing 100 MV of field. The new cryomodule will consist of eight 7-cell superconducting cavities operating at an average accelerating gradient of 19.5 MV/m and with an external Q=3.2 x 10^7. The high gradient, very high quality factor and large Lorentz detuning coefficient (KL up to 4) pose significant challenges beyond what the present analog low level RF (LLRF) control systems can handle reliably; therefore, a new digital LLRF control system has been developed. The main highlights of the new RF Control system include: a RF front-end with low temperature drift and good linearity, a large FPGA
Report Numbers
E 1.99:jlab-ace-08-826
E 1.99: doe/or/23177-0381
doe/or/23177-0381
jlab-ace-08-826
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Note
Published through SciTech Connect.
05/01/2008.
"jlab-ace-08-826"
" doe/or/23177-0381"
Invited Talk compiled for XXII IEEE-SPIE Conference.
Musson, John; Allison, Trent; Plawski, Tomasz; Hovater, J.; Dong, Hai; Bachimanchi, Ramakrishna.
Funding Information
AC05-060R23177
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