JOINT LHC/SL SEMINAR:<br>Electron cloud simulations

by Frank Zimmermann (CERN)

Thursday 18 Nov 1999, 16:00 → 16:30 Europe/Zurich

SL Auditorium (CERN)

In the LHC beam pipe, the emission of photoelectrons and secondary electrons gives rise to a quasistationary electron cloud. The response of this electron cloud to a transversely displaced bunch resembles a short-range wake field and can cause a fast beam instability. More importantly, if no care is taken, the incident electrons induce a significant heat load on the LHC beam screen. They may also cause a pressure rise, as recently observed in the SPS. This talk describes our computer model of the electron cloud build-up, and presents preliminary simulation results for the LHC and the SPS.

Organiser(s): Werner Herr / SL & Ruediger Schmidt / LHC

Note: * Tea and coffee will be served at 15:30 in front of the Auditorium

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