Speaker
Mr
Frank Ludwig
(DESY)
Description
For a precise detection of the cavity rf-field with a resolution of 0.01 degree
(rms) in phase and amplitude smaller then 5 10^-5 (rms), we present a down-
converter prototype. The down-converter is designed for a multichannel phase and
amplitude readout using an intermediate frequency between 10-100MHz, which is
sampled by an ADC. We give an overview of commercial available mixers, present
noise sources and discuss how noise, linearity and long term drift limit the
precision of field detection.
In addition we study the beam jitter induced by these noise sources within the
regulation.
We acknowledge financial support by DESY Hamburg and the EUROFEL project.
Author
Mr
Frank Ludwig
(DESY)
