| Paper | Title | Page |
|---|---|---|
| TUPSM064 | An FPGA-based Bunch-by-Bunch Tune Measurement System for the APS Storage Ring | 315 |
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A bunch-by-bunch tune measurement system is a very powerful tool for beam diagnostics and machine studies. It can be applied to such machine physics studies as characterization of transverse impedance, observation and identification of coupled-mode instabilities, and electron cloud effects. We developed an FPGA-based bunch-by-bunch tune measurement system that excites a set of driven bunches with a frequency sweep signal, samples a set of monitored bunches, and extracts amplitude and phase information from sampled data using digital demodulation method. We report its hardware and software design, performance, and recent experimental results on the APS storage ring beam. |