Speaker
Mr
Hooman Hassanzadegan
(CELLS)
Description
An analog Low-level RF prototype based on IQ demodulation has been designed and
developed at CELLS which should regulate the amplitude of the cavity voltage with a
stability of 1% and the phase with a stability of 1°. The LLRF is controlled and
monitored by an industrial PC with cPCI data acquisition cards for the I/O signals.
A series of tests have already been done to evaluate the performance of the open-
loop system and the individual parts including the IQ mod/dem, the differential
amplifiers and the electronic phase-shifter. To test the closed-loop system, a pill-
box mock-up cavity has been designed and built at CELLS which later will be driven
and controlled by the LLRF. A general overview of the deign and some test results
will be presented.
Authors
Dr
Francis Pérez
(CELLS)
Mr
Hooman Hassanzadegan
(CELLS)
