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

Energy dependence of PS main unit harmonics

TUPC15
21 May 2024, 16:00
2h
Country (MCC Exhibit Hall A)

Country

MCC Exhibit Hall A

Poster Presentation MC1.A04 Circular Accelerators Tuesday Poster Session

Speaker

Vittorio Ferrentino (University of Naples Federico II)

Description

CERN Proton Synchrotron (PS) is featured with 100 C-shaped combined-function Main Units (MUs) magnets with a complicated pole shape. The operation and the modelling of the PS-MUs has been historically carried out with empirical beam-based studies. However, it would be interesting to understand whether, starting from a proper magnetic model and using the predicted harmonics as input to optics simulations, it is possible to accurately predict the beam dynamics behavior in the PS, and assess the model accuracy with respect to beam-based measurements. To evaluate the magnetic model quality and its predictions, bare-machine configurations at different energies were prepared, where only the Main Coil is powered and the additional circuits are off. In this paper, a comparison of tunes and chromaticity measurements with the predicted optics is reported, showing the saturation of the quadrupolar and sextupolar components at high energy, which affect these quantities.

Region represented Europe
Paper preparation format LaTeX

Primary author

Vittorio Ferrentino (University of Naples Federico II)

Co-authors

Alexander Huschauer (European Organization for Nuclear Research) Antonio Gilardi (University of Napoli Federico II) Denis Cotte (European Organization for Nuclear Research) Ewen Maclean (European Organization for Nuclear Research) Luke von Freeden (European Organization for Nuclear Research) Mikko Karppinen (European Organization for Nuclear Research) Pasquale Arpaia (European Organization for Nuclear Research) Rogelio Tomas (European Organization for Nuclear Research) Tobias Persson (European Organization for Nuclear Research)

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