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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 8: Poster session

AKBP 8.3: Poster

Mittwoch, 21. März 2018, 18:00–19:30, NW-Bau - HS2

Beam stability study for FCC-hh — •Daria Astapovych and Oliver Boine-Frankenheim — TU Darmstadt, Darmstadt, Germany

The future circular hadron collider FCC-hh is one of the options for the post-LHC era. Currently an accelerator with the circumference of 100 km and center of massenergy 100 TeV is considered. The main limitations for the FCC-hh beam intensity are resistive wall impedance and electron clouds. The electron clouds, appearingdue to the short relativistic bunches, are significant issue causing beam quality degradation, beam instabilities and emittance growth. The numerical and analytical results for the impedance and growth rates of transverse coupled-bunch instabilities will be shown. Estimations of the tune footprint due to electron cloud effect, and secondary electron yield threshold also will be presented.