CAVITY CONTROL ALGORITHM [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy. Office of Science, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators:: Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

A digital low level radio frequency (RF) system typically incorporates either a heterodyne or direct sampling technique, followed by fast ADCs, then an FPGA, and finally a transmitting DAC. This universal platform opens up the possibilities for a variety of control algorithm implementations. The foremost concern for an RF control system is cavity field stability, and to meet the required quality of regulation, the chosen control system needs to have sufficient feedback gain. In this paper we will investigate the effectiveness of the regulation for three basic control system algorithms: I&Q (In-phase and Quadrature), Amplitude & Phase and digital SEL (Self Exciting Loop) along with the example of the Jefferson Lab 12 GeV cavity field control system.

Report Numbers:

E 1.99:jlab-ace-10-1298
E 1.99: doe/or/23177-1790
doe/or/23177-1790
jlab-ace-10-1298

Subject(s):

Particle Accelerators

Other Subject(s):

Note:

Published through SciTech Connect.
09/01/2010.
"jlab-ace-10-1298"
" doe/or/23177-1790"
LINAC10, 12-17 Sep 2010, Tsukuba, Japan.
Tomasz Plawski, J. Hovater.

Funding Information:

AC05-06OR23177

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