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Benoît Salvant

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The LHC collimation system is a critical element for the safe operation of the LHC machine. The necessity of fast accurate positioning of the collimator's jaws, recently introduced the need to have button beam position monitors directly embedded in the jaw ...

Amer Physical Soc2017

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With the progress made in 2015, the beams produced by the CERN Proton Synchrotron using multiturn extraction (MTE) have been delivered to the Super Proton Synchrotron (SPS) for the fixed-target physics run. Operation successfully started in the second half ...

Amer Physical Soc2017

Beam Instabilities in Hadron Synchrotrons

Xavier Buffat, Tatiana Pieloni, Nicolas Frank Mounet, Damiano Banfi, Werner Friedrich Herr, Michael Schenk, Carlo Zannini, Javier Barranco Garcia, Claudia Tambasco, Giovanni Iadarola, Adrian Oeftiger, Juan Federico Esteban Müller, Benoît Salvant, Giovanni Rumolo, Nicolò Biancacci, Hannes Bartosik

Beam instabilities cover a wide range of effects in particle accelerators and they have been the subjects of intense research for several decades. As the machines performance was pushed new mechanisms were revealed and nowadays the challenge consists in st ...

Ieee-Inst Electrical Electronics Engineers Inc2016

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The High Luminosity LHC project is aimed at increasing the LHC luminosity by an order of magnitude. One of the key ingredients to achieve the luminosity goal is the beam intensity increase. In order to keep beam instabilities under control and to avoid exc ...

Elsevier Science Bv2016

IMPEDANCE EFFECTS IN THE CLIC DAMPING RINGS

Nicolas Frank Mounet, Eirini Koukovini Platia, Benoît Salvant, Giovanni Rumolo

Due to the unprecedented brilliance of the beams, the performance of the Compact Linear Collider (CLIC) damping rings (DR) is affected by collective effects. Single bunch instability thresholds based on a broad-band resonator model and the associated coher ...

2011

Electromagnetic Modeling of C Shape Ferrite Loaded Kickers

Carlo Zannini, Benoît Salvant, Giovanni Rumolo

The kickers are major contributors to the CERN SPS beam coupling impedance. As such, they may represent a limitation to increasing the SPS bunch current in the frame of an intensity upgrade of the LHC. In this paper, analytical approach and CST Particle St ...

2011

Impedance model of the CERN SPS and aspects of LHC single-bunch stability

Benoît Salvant

Upgrades of the CERN particle accelerators complex are planned to increase the potential of physics discovery in the LHC. In this respect, the beam coupling impedances of the SPS and LHC are expected to be among the limitations to the intensity upgrade sch ...

EPFL2010

Update of the SPS Impedance Model

Nicolas Frank Mounet, Carlo Zannini, Benoît Salvant

The beam coupling impedance of the CERN SPS is expected to be one of the limitations to an intensity upgrade of the LHC complex. In order to be able to reduce the SPS impedance, its main contributors need to be identified. An impedance model for the SPS ha ...

2010

ELECTROMAGNETIC SIMULATIONS OF SIMPLE MODELS OF FERRITE LOADED KICKERS

Nicolas Frank Mounet, Carlo Zannini, Benoît Salvant

2010

QUADRUPOLAR TRANSVERSE IMPEDANCE OF SIMPLE MODELS OF KICKERS

Nicolas Frank Mounet, Carlo Zannini, Benoît Salvant

The SPS kickers are major contributors to the SPS transverse beam coupling impedance. The current ”flat chamber” impedance model for a kicker is obtained by applying form factors to the theoretical impedance of an axisymmetric ferrite beam pipe. This model ...

2010