Search for dissertations about: "Particle beams"

Showing result 1 - 5 of 69 swedish dissertations containing the words Particle beams.

  2. 1. Emittance and Energy Diagnostics for Electron Beams with Large Momentum Spread

    Author : Maja Olvegård; Volker Ziemann; Kay Wittenburg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; beam instrumentation; particle beam diagnostic; emittance; particle collider; particle accelerator; High Energy Physics; Högenergifysik;

    Abstract : Following the discovery of the Higgs-like boson at the Large Hadron Collider, there is demand for precision measurements on recent findings. The Compact Linear Collider, CLIC, is a candidate for a future linear electron-positron collider for such precision measurements. READ MORE

  4. 2. Laser-Driven Particle Acceleration - Improving Performance Through Smart Target Design

    Author : Matthias Burza; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; wakefield; ultra-relativistic; ultra-intense; TNSA; Terawatt; sheath; proton; polarimetry; plasma mirror; plasma; Petawatt; particle; oscillation; Normarski; micromachining; LWFA; laser; interferometry; electron; contrast; acceleration; bubble; Fysicumarkivet A:2012:Burza;

    Abstract : Laser-driven particle acceleration makes use of sub-picosecond, pulsed, high-power laser systems, capable of producing intensities ~10^{19} W/cm^2 at the laser focus to form plasmas, and use ultra-relativistic and nonlinear dynamics to produce quasistatic acceleration fields. This allows electrons to be accelerated to ~100 MeV over sub-centimetre distances, while protons may be accelerated to the ~10 MeV regime. READ MORE

  5. 3. Reactions with relativistic radioactive beams and gamma multiplicities

    Author : Simon Lindberg; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; R3B; Calibration; Radioactive Beams; FAIR; Gamma Multiplicity; Analysis; Virtual Alignment; GSI;

    Abstract : Experiments with relativistic radioactive beams are used to study the properties of exotic nuclei. The experimental setup used in this thesis is a complex system of detectors for identifying and measuring the 4-momenta of all incoming nuclei and products created when the nuclei impinge on a reaction target. READ MORE

  6. 4. Measurements of the Standard Model Higgs boson cross sections in the WW* decay mode with the ATLAS experiment

    Author : P. Edvin Sidebo; Jonas Strandberg; Markus Klute; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; p p: colliding beams; Higgs particle: hadroproduction; Higgs particle: decay; cross section: measured; High energy physics: experimental; Timing detectors; p p: scattering; ATLAS; Cern LHC Coll; Fysik; Physics;

    Abstract : This thesis summarises measurements of the Standard Model Higgs boson production cross sections based on proton–proton collision data at √s = 13 TeV produced by the Large Hadron Collider at CERN. By analysing data collected during 2015 and 2016 by the ATLAS experiment, corresponding to an integrated luminosity of 36 fb−1, the Higgs boson gluon–gluon fusion and vector boson fusion production cross sections are measured in the WW* decay mode. READ MORE

  7. 5. Laser-Produced Plasmas for Particle Acceleration

    Author : Kristoffer Svensson; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis describes experimental studies that aim to stabilise and optimise laser-based particle accelerators. The technique is called laser wakefield acceleration, where electric fields of the order of 102 GV/m accelerate electrons to high energies (⇠102 MeV) over mm-distances in laser-produced plasmas. READ MORE