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oaioai:cds.cern.ch:1065440

Cures for Beam Instabilities in the CERN SPS and their Limitations

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Publication date
1 January 2006
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Abstract

The LHC beam in the SPS is unstable with a threshold almost an order of magnitude below the nominal intensity. The cures used to stabilise this beam against coupled bunch instabilities apart from RF feedback, feed-forward and longitudinal damping, include a fourth harmonic RF system and controlled emittance blow-up. The limitations of the two last methods were studied experimentally and are analysed here from the point of view of beam quality requirements at extraction and future intensity increases up to ultimate value

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This paper was published in CERN Document Server.

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