Veronica Olsen
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View article: Release of Crystal Routine for Multi-Turn Proton Simulations within SixTrack v5
Release of Crystal Routine for Multi-Turn Proton Simulations within SixTrack v5 Open
Crystal collimation is studied as a possible scheme to further improve the efficiency of ion collimation at the High Luminosity Large Hadron Collider (HL-LHC), as well as for possible applications in the CERN program of Physics Beyond Coll…
View article: Improving the Luminosity Burn-Off Estimate by Considering Single-Diffractive Effects
Improving the Luminosity Burn-Off Estimate by Considering Single-Diffractive Effects Open
Collisions in a high-luminosity collider result in a continuous burn-off of the circulating beams that is the dominant effect that reduces the instantaneous luminosity over time. In order to obtain a good estimate of the luminosity evoluti…
View article: Dynamic simulations in SixTrack
Dynamic simulations in SixTrack Open
The DYNK module allows element settings in SixTrack to be changed on a turn-by-turn basis. This document contains a technical description of the DYNK module in SixTrack. It is mainly intended for a developer or advanced user who wants to m…
View article: SixTrack V and runtime environment
SixTrack V and runtime environment Open
SixTrack is a single-particle tracking code for high-energy circular accelerators routinely used at CERN for the Large Hadron Collider (LHC), its luminosity upgrade (HL-LHC), the Future Circular Collider (FCC) and the Super Proton Synchrot…
View article: SixTrack Version 5: Status and New Developments
SixTrack Version 5: Status and New Developments Open
SixTrack Version 5 is a major SixTrack release that introduces new features, with improved integration of the existing ones, and extensive code restructuring. New features include dynamic-memory management, scattering-routine integration, …
View article: Beam Loading in a Proton Driven Plasma Wakefield Accelerator
Beam Loading in a Proton Driven Plasma Wakefield Accelerator Open
The Advanced Wakefield Experiment (AWAKE) at CERN is the first plasma wakefield experiment to exploit the self-modulation instability in a long proton bunch in order to accelerate electrons to high energies. The first run saw electrons acc…
View article: Experimental Observation of Proton Bunch Modulation in a Plasma at Varying Plasma Densities
Experimental Observation of Proton Bunch Modulation in a Plasma at Varying Plasma Densities Open
We give direct experimental evidence for the observation of the full transverse self-modulation of a long, relativistic proton bunch propagating through a dense plasma. The bunch exits the plasma with a periodic density modulation resultin…
View article: Experimental Observation of Plasma Wakefield Growth Driven by the Seeded Self-Modulation of a Proton Bunch
Experimental Observation of Plasma Wakefield Growth Driven by the Seeded Self-Modulation of a Proton Bunch Open
We measure the effects of transverse wakefields driven by a relativistic proton bunch in plasma with densities of 2.1×10^{14} and 7.7×10^{14} electrons/cm^{3}. We show that these wakefields periodically defocus the proton bunch itself, con…
View article: Generalised Scattering Module in SixTrack 5
Generalised Scattering Module in SixTrack 5 Open
A generalised scattering module has recently been added to SixTrack. This module enables the use of arbitrary generators and target profiles. Presently, a simple model of elastic scattering and a coupling to Pythia8 have been implemented. …
View article: SixTrack Version 5: Status and New Developments
SixTrack Version 5: Status and New Developments Open
SixTrack Version 5 is a major SixTrack release that introduces new features, with improved integration of the existing ones, and extensive code restructuring. New features include dynamic-memory management, scattering-routine integration, …
View article: SixTrack Project: Status, Runtime Environment, and New Developments
SixTrack Project: Status, Runtime Environment, and New Developments Open
SixTrack is a single-particle tracking code for high-energy circular accelerators routinely used at CERN for the Large Hadron Collider (LHC), its luminosity upgrade (HL-LHC), the Future Circular Collider (FCC), and the Super Proton Synchro…
View article: Study of Fringe Fields Effects from Final Focus Quadrupoles on Beam Based Measured Quantities
Study of Fringe Fields Effects from Final Focus Quadrupoles on Beam Based Measured Quantities Open
Accelerator physics needs advanced modeling and simulation techniques, in particular for beam stability studies. A deeper understanding of the effects of magnetic fields non-linearities will greatly help in the improvement of future collid…
View article: Experimental observation of proton bunch modulation in a plasma, at varying plasma densities
Experimental observation of proton bunch modulation in a plasma, at varying plasma densities Open
We give direct experimental evidence for the observation of the full transverse self-modulation of a relativistic proton bunch propagating through a dense plasma. The bunch exits the plasma with a density modulation resulting from radial w…
View article: Dynamic simulations in SixTrack
Dynamic simulations in SixTrack Open
The DYNK module allows element settings in SixTrack to be changed on a turn-by-turn basis. This document contains a technical description of the DYNK module in SixTrack. It is mainly intended for a developer or advanced user who wants to m…
View article: Crab Cavity Failures Combined with a Loss of the Beam-Beam Kick in the High Luminosity LHC
Crab Cavity Failures Combined with a Loss of the Beam-Beam Kick in the High Luminosity LHC Open
Crab cavities are an essential component of the High Luminosity LHC (HL-LHC) project. In case of a failure they can create large transverse kicks on the beam within tens of microseconds and, therefore, require a fast extraction of the circ…
View article: AWAKE readiness for the study of the seeded self-modulation of a 400 GeV proton bunch
AWAKE readiness for the study of the seeded self-modulation of a 400 GeV proton bunch Open
AWAKE is a proton-driven plasma wakefield acceleration experiment. We show that the experimental setup briefly described here is ready for systematic study of the seeded self-modulation of the 400 GeV proton bunch in the 10 m long rubidium…
View article: The Healthy Futures Project
The Healthy Futures Project Open
This article discusses the formation of the Healthy Futures Network which is an informal network of schools in the North West who began meeting over a period of several months seeking to address issues relating to the Health and Wellbeing …
View article: Loading of Wakefields in a Plasma Accelerator Section Driven by a Self-Modulated Proton Beam
Loading of Wakefields in a Plasma Accelerator Section Driven by a Self-Modulated Proton Beam Open
Using parameters from the AWAKE project and particle-in-cell simulations we investigate beam loading of a plasma wake driven by a self-modulated proton beam. Addressing the case of injection of an electron witness bunch after the drive bea…
View article: Data Acquisition and Controls Integration of the AWAKE Experiment at CERN
Data Acquisition and Controls Integration of the AWAKE Experiment at CERN Open
The AWAKE experiment has been successfully installed in the CNGS facility at CERN, and is currently in its first stage of operation. The experiment seeks to demonstrate self-modulation of an SPS proton beam in a rubidium plasma, driving a …