19–24 May 2024
Music City Center
US/Central timezone

Emittance growth studies due to Crab Cavity induced amplitude noise in the SPS

THPC63
23 May 2024, 16:00
2h
Country (MCC Exhibit Hall A)

Country

MCC Exhibit Hall A

Poster Presentation MC5.D04 Beam Coupling Impedance Theory, Simulations, Measurements, Code Development Thursday Poster Session

Speaker

Andrea Fornara (The University of Manchester)

Description

In the context of the HL-LHC upgrade, RF Crab Cavities (CCs) are one of the key components. Due to the increased intensity, the collider will operate with a large crossing angle scheme and these CCs will be used to counteract the geometrical reduction factor coming from the crossing angle. Amplitude and phase noise injected from the Low-Level RF, are known to induce transverse bunch emittance growth. This contribution presents the latest measurements of emittance growth induced by amplitude noise. The measurement was performed thanks to the SPS Beam Synchrotron Radiation Telescope (BSRT), that has been used to characterize the evolution of the transverse distributions. The measured emittance growth was found to be dependent on the amplitude detuning induced by the SPS octupoles, although no dependence was predicted by the available theories and models. In this paper, the measurement results will be presented and discussed.

Region represented Europe
Paper preparation format LaTeX

Primary author

Andrea Fornara (The University of Manchester)

Co-authors

Georges Trad (European Organization for Nuclear Research) Guido Sterbini (European Organization for Nuclear Research) Hannes Bartosik (European Organization for Nuclear Research) Natalia Triantafyllou (European Organization for Nuclear Research) Philippe Baudrenghien (European Organization for Nuclear Research) Rama Calaga (European Organization for Nuclear Research) Robert Appleby (Cockcroft Institute) Sofia Kostoglou (European Organization for Nuclear Research) Thomas Levens (European Organization for Nuclear Research) Xavier Buffat (European Organization for Nuclear Research)

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