| Paper |
Title |
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| TUPRI058 |
Impedance Studies of the Dummy Septum for CERN PS Multi-turn Extraction |
1704 |
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- S. Persichelli, O.E. Berrig, M. Giovannozzi, J. Herbst, J. Kuczerowski, M. Migliorati, B. Salvant
CERN, Geneva, Switzerland
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A protection septum has been installed in the CERN PS section 15 in order to mitigate irradiation of the magnetic septum 16 for fast extractions towards the SPS. Impedance studies have been performed, showing that beams circulating in the septum during extraction generate sharp resonances in the coupling impedance. Impedance measurements with the wire technique have been performed, showing a good agreement with simulations. Instability rise times of trapped modes have been evaluated and compared to extraction duration. Solutions for reducing the impact on the stability of the beam have been considered.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2014-TUPRI058
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