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A Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch Feedback
Control and mitigation of transverse beam instabilities caused by electron cloud and TMCI will be essential for the SPS to meet the beam intensity demands for the HL-LHC upgrade. A wideband intra-bunch feedback method is in development, based on a 4 GS/s data acquisition and processing, and with a b...
Autores principales: | , , , , , , , , , |
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Publicado: |
2013
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1709881 |
_version_ | 1780936672445202432 |
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author | Cesaratto, John M Alesini, D DeSantis, S Drago, A Fox, J D Gallo, A Hofle, W Marcellini, F Rivetta, C H Zobov, M |
author_facet | Cesaratto, John M Alesini, D DeSantis, S Drago, A Fox, J D Gallo, A Hofle, W Marcellini, F Rivetta, C H Zobov, M |
author_sort | Cesaratto, John M |
collection | CERN |
description | Control and mitigation of transverse beam instabilities caused by electron cloud and TMCI will be essential for the SPS to meet the beam intensity demands for the HL-LHC upgrade. A wideband intra-bunch feedback method is in development, based on a 4 GS/s data acquisition and processing, and with a back end frequency structure extending to 1 GHz. A slotted type kicker, similar to those used for stochastic cooling, has been considered as the terminal element of the feedback chain. It offers the most promising deflecting structure characteristics to meet the system requirements in terms of bandwidth, shunt impedance, and beam coupling impedance. Different types of slotted structures have been explored and simulated, including a ridged waveguide and coaxial type waveguide. In this paper we present our findings and the conceptual design of a vertical SPS wideband kicker consistent with the stay clear, vacuum, frequency band coverage, and peak shunt impedance requirements. |
id | cern-1709881 |
institution | Organización Europea para la Investigación Nuclear |
publishDate | 2013 |
record_format | invenio |
spelling | cern-17098812019-09-30T06:29:59Zhttp://cds.cern.ch/record/1709881Cesaratto, John MAlesini, DDeSantis, SDrago, AFox, J DGallo, AHofle, WMarcellini, FRivetta, C HZobov, MA Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch FeedbackAccelerators and Storage RingsControl and mitigation of transverse beam instabilities caused by electron cloud and TMCI will be essential for the SPS to meet the beam intensity demands for the HL-LHC upgrade. A wideband intra-bunch feedback method is in development, based on a 4 GS/s data acquisition and processing, and with a back end frequency structure extending to 1 GHz. A slotted type kicker, similar to those used for stochastic cooling, has been considered as the terminal element of the feedback chain. It offers the most promising deflecting structure characteristics to meet the system requirements in terms of bandwidth, shunt impedance, and beam coupling impedance. Different types of slotted structures have been explored and simulated, including a ridged waveguide and coaxial type waveguide. In this paper we present our findings and the conceptual design of a vertical SPS wideband kicker consistent with the stay clear, vacuum, frequency band coverage, and peak shunt impedance requirements.SLAC-PUB-15498oai:cds.cern.ch:17098812013 |
spellingShingle | Accelerators and Storage Rings Cesaratto, John M Alesini, D DeSantis, S Drago, A Fox, J D Gallo, A Hofle, W Marcellini, F Rivetta, C H Zobov, M A Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch Feedback |
title | A Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch Feedback |
title_full | A Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch Feedback |
title_fullStr | A Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch Feedback |
title_full_unstemmed | A Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch Feedback |
title_short | A Wideband Slotted Kicker Design for SPS Transverse Intra-Bunch Feedback |
title_sort | wideband slotted kicker design for sps transverse intra-bunch feedback |
topic | Accelerators and Storage Rings |
url | http://cds.cern.ch/record/1709881 |
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