BEAM DYNAMICS STUDIES OF THE ESS LINAC USING A NEW MULTICELL CAVITY MODEL

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Abstract

The European Spallation Source is designed to deliver 5 MW proton beam power on the target while keeping the beam induced losses below 1 W/m throughout the LINAC. This implies the need of accurate models to correctly describe
the longitudinal beam dynamics within the multi-cell cavities. In all the previous error studies the cells of a multicell cavity were modelled as a sequence of independent gaps and the errors were applied directly on the amplitude of
each cell accelerating field, considered as random variable. In this paper, instead, we present a new detailed analysis of the effect of the error tolerances on the beam dynamics including a new model to calculate the amplitude errors
of the accelerating field in the multi-cell cavities: errors are applied on the geometrical parameters of each cavity; then the accelerating field is calculated solving the Maxwell equations over all the cavity.
Original languageEnglish
Title of host publicationProceedings of the 9th International Particle Accelerator Conference
Pages870
Number of pages873
ISBN (Electronic)978-3-95450-184-7
Publication statusPublished - 2018
Event9th International Particle Accelerator Conference (IPAC'18) - Vancouver, Canada
Duration: 2018 Apr 292018 May 4

Conference

Conference9th International Particle Accelerator Conference (IPAC'18)
Country/TerritoryCanada
CityVancouver
Period2018/04/292018/05/04

Subject classification (UKÄ)

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • renato, de, prisco, INTEGRATION, INTERFACES, STABILIZATION, SYSTEM, DESIGN, DRIFT, TUBE, LINAC, ESS, esss, DTL, drift, Tube, Linac, beam, dynamics, RF, radio, frequency, stabilization, post, couplers, coupler, tuner, tuners, pick, accelerating, sensitivity, tuning, tilt, pmq, permanent, quadrupole, focusing, detuning, mismatch, parameter, matched, twiss, parameters, phase, advance, cooling, stem, stems, compensation, software, emittance, growth, tune, depression, error, study, studies, position, monitor, monitors, steerers, adjust, steerer, rfq, input, alignment, angle, cavity, tank, dipole, static, dynamic, PIC-NIC, PIC-NIR, statistic, statistical, TraceWin, confidence, power, losses, lost, level, longitudinal, transverse, MEBT, medium, beta, high, average

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