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

Macro-particle simulations of longitudinal peak detected Schottky signals

MOPS26
20 May 2024, 16:00
2h
Blues (MCC Exhibit Hall A)

Blues

MCC Exhibit Hall A

Poster Presentation MC5.D03 Calculations of EM fields Theory and Code Developments Monday Poster Session

Speaker

Ivan Karpov (European Organization for Nuclear Research)

Description

The peak detected Schottky system is a powerful diagnostic tool for determining longitudinal beam parameters. According to the theoretical model, the peak value of the signal from a wideband pick-up contains information on particle distribution as a function of the synchrotron frequency. Due to intrinsic assumptions for modelling the acquisition set-up and uncertainties of beam parameters, a one-to-one comparison of predictions and measurements remains a challenge. This work presents the peak detected Schottky spectra obtained in idealized macro-particle simulations. Following refinement of the theoretical model, a direct comparison was performed under controlled conditions. Agreement with the numerical results was improved by introducing a form factor, which describes the probability of a particle being present in the observation window. Modifications due to collective effects are discussed as well. Finally, the corresponding peak detected spectra for various intensities, assuming a simplified impedance model, are presented.

Region represented Europe
Paper preparation format LaTeX

Primary author

Ivan Karpov (European Organization for Nuclear Research)

Co-authors

Felix Schuderer (European Organization for Nuclear Research) Elena Shaposhnikova (European Organization for Nuclear Research)

Presentation materials

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