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arXiv · 1410.4092

Beam-beam effects under the influence of external noise

K. Ohmi
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Abstract

Fast external noise, which gives fluctuation into the beam orbit, is discussed in connection with beam-beam effects. Phase noise from crab cavities and detection devices (position monitor) and kicker noise from the bunch by bunch feedback system are the sources. Beam-beam collisions with fast orbit fluctuations with turn by turn or multi-turn correlations, cause emittance growth and luminosity degradation. We discuss the tolerance of the noise amplitude for LHC and HL-LHC.

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K. Ohmi. 2014-10-15. Beam-beam effects under the influence of external noise. https://doi.org/10.5170/cern-2014-004.69

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