Veronica Olsen
A5058161579- Particle Accelerators and Free-Electron Lasers
- Laser-Plasma Interactions and Diagnostics
- Particle accelerators and beam dynamics
- Magnetic confinement fusion research
- Particle Detector Development and Performance
- Ion-surface interactions and analysis
- Particle physics theoretical and experimental studies
- Superconducting Materials and Applications
- Plasma Diagnostics and Applications
- Laser-Matter Interactions and Applications
- Radiation Therapy and Dosimetry
- Distributed and Parallel Computing Systems
- Graphite, nuclear technology, radiation studies
- Solar and Space Plasma Dynamics
- Gyrotron and Vacuum Electronics Research
- Geotechnical and Geomechanical Engineering
- Global Public Health Policies and Epidemiology
- Parallel Computing and Optimization Techniques
- Nuclear Physics and Applications
- Ionosphere and magnetosphere dynamics
- Atomic and Molecular Physics
- Radiation Effects in Electronics
- High-Energy Particle Collisions Research
- Lanthanide and Transition Metal Complexes
- Advancements in Photolithography Techniques
University of Oslo
2014-2019
European Organization for Nuclear Research
2019
SLAC National Accelerator Laboratory
2016
High energy particle accelerators have been crucial in providing a deeper understanding of fundamental particles and the forces that govern their interactions. In order to increase or reduce size accelerator, new acceleration schemes need be developed. Plasma wakefield acceleration, which electrons plasma are excited, leading strong electric fields, is one such promising novel technique. Pioneering experiments shown an intense laser pulse electron bunch traversing plasma, drives fields 10s...
The Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) aims at studying plasma wakefield generation and electron acceleration driven by proton bunches. It is a proof-of-principle R&D experiment CERN the world׳s first experiment. AWAKE will be installed in former CNGS facility uses 400 GeV/c beam bunches from SPS. experiments focus on self-modulation instability of long (rms ~12 cm) bunch plasma. These are planned for end 2016. Later, 2017/2018, low energy (~15 MeV)...
We give direct experimental evidence for the observation of full transverse self-modulation a long, relativistic proton bunch propagating through dense plasma. The exits plasma with periodic density modulation resulting from radial wakefield effects. show that is seeded by ionization front created using an intense laser pulse copropagating bunch. extends over length following seed point. By varying one order magnitude, we frequency scales expected dependence on density, i.e., it equal to...
The seeded self-modulation of a relativistic, charged particle bunch in plasma is shown to grow both along the and plasma, resulting transverse wakefield amplitudes that far exceed initial seed values.
AWAKE is a proton-driven plasma wakefield acceleration experiment. % We show that the experimental setup briefly described here ready for systematic study of seeded self-modulation 400\,GeV proton bunch in 10\,m-long rubidium with density adjustable from 1 to 10$\times10^{14}$\,cm$^{-3}$. short laser pulse used ionization vapor propagates all way along column, suggesting full vapor. occurs bunch, at time and follows affects bunch.
We investigate beam loading and emittance preservation for a high-charge electron being accelerated in quasilinear plasma wakefields driven by short proton beam. The structure of the studied are similar to those long, modulated beam, such as AWAKE driver. show that properly choosing parameters exploiting two well known effects, wakefield full blow out electrons can gain large amounts energy with narrow final spread (%-level) without significant growth.
SixTrack is a single-particle tracking code for high-energy circular accelerators routinely used at CERN the Large Hadron Collider (LHC), its luminosity upgrade (HL-LHC), Future Circular (FCC) and Super Proton Synchrotron (SPS) simulations. The based on 6D symplectic engine, which optimized long-term simulations delivers fully reproducible results several platforms. It also includes multiple scattering engines beam–matter interaction studies, as well facilities to run integrated with...
Abstract SixTrack Version 5 is a major 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, initial-condition module, reviewed post-processing methods. Existing like on-line aperture checking Fluka-coupling are now enabled by default. Extensive performance regression tests have been developed deployed as part new-release generation. The tracking...
The DYNK module allows element settings in SixTrack to be changed on a turn-by-turn basis. This document contains technical description of the SixTrack. It is mainly intended for developer or advanced user who wants modify module, example by adding more functions that can used calculate new settings, add support elements with DYNK.
We briefly describe some of the features E209 experiment at SLAC-FACET. The aims studying physics self-modulation instability long electron and positron bunches in dense plasmas. Encouraging initial results were obtained so far. Further experiments will take place soon.
In reply to Louise Mayor's feature article "Where people and particles collide", about the experiences of researchers at CERN who are lesbian, gay, bisexual or transgender (LGBT), efforts make LGBT an officially recognized club, incidents where posters advertising club have been torn down defaced (March pp31–36, http://ow.ly/YVP2Z).
Long (L>>λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">pe</sub> ) charged particle bunches traveling in dense plasmas are subject to a transverse two-stream instability, the self-modulation instability (SMI) <sup xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> . This modulates bunch radial direction with longitudinal period approximately equal plasma wavelength (λ ~n xmlns:xlink="http://www.w3.org/1999/xlink">e</sub>...
We briefly describe the E209 experiment to be performed at SLAC FACET. show how evidence of radial modulation electron bunch resulting from occurrence self-modulation instability is expected appear on a coherent transition radiation autocorellation trace.
The DYNK module allows element settings in SixTrack to be changed on a turn-by-turn basis.This document contains technical description of the SixTrack.It is mainly intended for developer or advanced user who wants modify module, example by adding more functions that can used calculate new settings, add support elements with DYNK.