Speaker
Mr
Fernand RIBEIRO
(SYNCHROTRON-SOLEIL)
Description
In the SOLEIL storage ring, two cryomodules, each containing a pair of 352 MHz
superconducting cavities, will provide the maximum power of 600 kW, required at the
nominal energy of 2.75 GeV with the full beam current of 500 mA and all the
insertion
devices. They will be supplied with liquid helium from a single cryogenic plant and
each of the four cavities will be powered with a 190 kW solid state amplifier
consisting in a combination of 315 W elementary modules (about 750 modules per
amplifier).
The low electronic system that will be used in the first phase consists in “slow”
amplitude, phase and frequency loops, complemented with a direct RF feedback. A fast
digital, FPGA-based, I/Q feedback is currently under development, that should be
implemented later on.
The control of the whole system is insured by several PLCs and a µcontroller, which
monitors the amplifier parameters through a multiplexing system. The PLCs are linked
to the SOLEIL TANGO framework via Ethernet.
The control and low level RF system is described and the first
operational/experimental results are reported in this paper.
Authors
Mr
Fernand RIBEIRO
(SYNCHROTRON-SOLEIL)
Mr
Jean POLIAN
(SYNCHROTRON-SOLEIL)
Mr
Jocelyn LABELLE
(SYNCHROTRON-SOLEIL)
Mr
Massamba DIOP
(SYNCHROTRON-SOLEIL)
Mr
Michel LUONG
(CEA)
Mr
Moussa El AJJOURI
(SYNCHROTRON-SOLEIL)
Mr
Olivier PIQUET
(CEA)
Mr
Patrick MARCHAND
(SYNCHROTRON-SOLEIL)
Mr
Sreedharan RAJESH
(SYNCHROTRON-SOLEIL)
