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

Impact of octupoles on the Schottky spectra of bunched beams

SUPG042
19 May 2024, 14:00
4h
Bluegrass (MCC Exhibit Hall A)

Bluegrass

MCC Exhibit Hall A

201 Rep. John Lewis Way S, Nashville, TN 37203, USA
Student Poster Presentation MC6.T03 Beam Diagnostics and Instrumentation Student Poster Session

Speaker

Christophe Lannoy (European Organization for Nuclear Research)

Description

Schottky monitors serve as non-invasive tools for beam diagnostics, providing insights into crucial bunch characteristics such as tune, chromaticity, bunch profile, or synchrotron frequency distribution. However, octupole magnets commonly used in circular storage rings to mitigate instabilities through the Landau damping mechanism, can significantly affect the Schottky spectrum. Due to the amplitude-dependent incoherent tune shift of individual particles, the satellites of the Schottky spectrum are smeared out as the octupolar field increases. This study investigates the impact of octupoles and their incorporation into theory, with the goal of improving beam and machine parameter evaluation from measured spectra. Theoretical findings are validated through macro-particle simulations conducted across a range of octupole strengths, encompassing typical operational conditions at the Large Hadron Collider.

Region represented Europe
Paper preparation format LaTeX

Primary author

Christophe Lannoy (European Organization for Nuclear Research)

Co-authors

Diogo Alves (European Organization for Nuclear Research) Kacper Lasocha (European Organization for Nuclear Research) Nicolas Mounet (European Organization for Nuclear Research) Tatiana Pieloni (Ecole Polytechnique Fédérale de Lausanne)

Presentation materials

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