Electromagnetic Simulation of CERN Accelerator Components and Experimental Applications

Zannini, Carlo

doi:10.5075/epfl-thesis-5737

Cited by 7 publications

(3 citation statements)

References 21 publications

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“…This procedure has been applied in the past on the PS Booster (PSB) [11,12], Oak Ridge National Laboratory Spallation Neutron Source (SNS) [13] and Super Proton Synchrotron (SPS) kickers [10].…”

Section: Impedance Of the Ps Kicker Magnets Connection Cables And The...mentioning

confidence: 99%

“…In the following, the impact of the termination load and inductance of a kicker on its cable impedance is studied on the BFA09S and BFA09P kicker magnets, based on the formalism developed by C. Zannini [10]. Their resulting impedances are discussed and the impact of their termination is assessed.…”

Section: Impedance Of the Ps Kicker Magnets Connection Cables And The...mentioning

confidence: 99%

“…The lossless line impedance corresponds to the one derived in ref. [10]. Based on the circuit model of the kicker shown in figure 3, the generalized impedance arising from the coupling of the external circuit with the magnet [12] can be expressed as:…”

Section: Transmission Line Theorymentioning

confidence: 99%

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Recent advances in the CERN PS impedance model and instability simulations following the LHC Injectors Upgrade project

Joly,

Oeftiger,

Iadarola

et al. 2024

J. Inst.

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Transverse instability growth rates in the CERN Proton Synchrotron (PS) are studied thanks to the recently updated impedance model of the machine. Using this model, macroparticle tracking simulations were performed with a new method well-suited for the slicing of short wakes, which achieves comparable performance to the originally implemented method while reducing the required number of slices by a factor of 5 to 10. Furthermore, dedicated beam-based measurement campaigns were carried out to benchmark the impedance model. Until now, beam dynamics simulations based on this model underestimated instability growth rates at injection energy. Thanks to a recent addition to the impedance model, namely the kicker magnets' connecting cables and their external circuits, the simulated instability growth rates are now comparable to the measured ones even when neglecting the impact of the space charge force. Finally, the space charge force is included in simulations and its impact on the instability growth rate and intra-bunch motion is studied.

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Section: Impedance Of the Ps Kicker Magnets Connection Cables And The...mentioning

confidence: 99%

Section: Impedance Of the Ps Kicker Magnets Connection Cables And The...mentioning

confidence: 99%