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RIS citation export for MOPGF097: Architecture of Transverse Multi-Bunch Feedback Processor at Diamond

TY - CONF
AU - Abbott, M.G.
AU - Rehm, G.
AU - Uzun, I.S.
ED - Corvetti, Lou
ED - Riches, Kathleen
ED - Schaa, Volker RW
TI - Architecture of Transverse Multi-Bunch Feedback Processor at Diamond
J2 - Proc. of ICALEPCS2015, Melbourne, Australia, 17-23 October 2015
C1 - Melbourne, Australia
T2 - International Conference on Accelerator and Large Experimental Physics Control Systems
T3 - 15
LA - english
AB - We describe the detailed internal architecture of the Transverse Multi-Bunch Feedback processor used at Diamond for control of multi-bunch instabilities and measurement of betatron tunes. Bunch by bunch selectable control over feedback filters, gain and excitation allows fine control over feedback, allowing for example the single bunch in a hybrid or camshaft fill pattern to be controlled independently from the bunch train. It is also possible to excite all bunches at a single frequency while simultaneously sweeping the excitation for tune measurement of a few selected bunches. The single frequency excitation has been used for continuous measurement of the beta-function. A simple programmable event sequencer provides support for up to 7 steps of programmable sweeps and changes to feedback and excitation, allowing a variety of complex and precisely timed beam characterisation experiments including grow-damp measurements in unstable conditions and programmed bunch cleaning. Finally input and output compensation filters allow for correction of front end and amplifier phasing at higher frequencies.
PB - JACoW
CP - Geneva, Switzerland
SP - 298
EP - 301
KW - feedback
KW - controls
KW - FPGA
KW - EPICS
KW - experiment
DA - 2015/12
PY - 2015
SN - 978-3-95450-148-9
DO - 10.18429/JACoW-ICALEPCS2015-MOPGF097
UR - http://jacow.org/icalepcs2015/papers/mopgf097.pdf
ER -