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Vacuum Testing the Electron Cloud with LHC Beams

Explore electron cloud behavior with LHC-type beams using a bespoke SPS machine as a vacuum test bench. Investigate energy distributions, triggering methods, detectors, and ion detection. Dive into spatial distributions and scrubbing effects.

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Vacuum Testing the Electron Cloud with LHC Beams

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  1. SPS Machine as a Vacuum Test Bench for the Electron Cloud Studies with LHC Type Beams G. Arduini1, V. Baglin3, P. Collier1, G. Ferioli2, B. Henrist3, N. Hilleret3, B. Jenninger3, J.M. Jimenez3, J.M. Laurent3, K. Weiss3, F. Zimmermann4 1SL/OP, 2SL/BI, 3LHC/VAC, 4SL/AP CERN, Geneva, Switzerland

  2. FUTURE EXPERIMENTS • Pick-ups - Characteristics and Energy Distribution • e- cloud build-up (4 pick-ups) ok • Energy distribution of the electrons (2 pick-ups) installed • Triggering of the experiments on the LHC batch ok • Behaviour of the electrons in a dipole magnetic field - Spatial Distribution • “strip” detector (1 detector) “ok” • “triangle” detectors (2 detectors, 1 with a filtering grid) installed • Scrubbing effect by measuring in-situ the modification of the secondary electron yield ok • Ions detector to exclude ion stimulated desorption installed • Warm-pack to measure the power dissipated by the e-cloud calibrated

  3. Triangle detector

  4. Strip detector

  5. Strip detector

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