Browsing Department of Physics and Technology by Document Types "Doctoral thesis"
Now showing items 21-40 of 144
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Constraining the two Higgs Doublet Model with CP-Violation
(Doctoral thesis, 2008-09-03) -
Contributions to the Theory of Atoms and Molecules in Strong Electromagnetic Fields
(Doctoral thesis, 2006-09-29) -
Correlated ionization processes in atoms and molecules
(Doctoral thesis, 2013-09-27)This thesis is composed of five scientific papers written between 2009 and 2013. The focus of this work is on various photo-ionization processes in small atoms and molecules. The strong field phenomenon called “atomic ... -
D0-electron correlations in p–Pb collisions at \(\sqrt{s_{\rm{NN}}}\) = 5.02 TeV
(Doctoral thesis, 2017-04-21)In collisions of lead nuclei at the Large Hadron Collider (LHC) at CERN, a state of matter called Quark-Gluon Plasma (QGP) is formed, where quarks and gluons are no longer confined into hadrons. Heavy-flavour quarks, i.e., ... -
Deciphering Spatio-Temporal Variations in the Auroral Ionosphere using Magnetometer Data
(Doctoral thesis, 2024-03-22)Den polare ionosfæren er et dynamisk plasma-miljø dominert av koblingen mellom solvinden og jordens magnetosfære. Nordlyset, plasma-bevegelsen og elektriske strømmer i ionosfæren er skalert og drevet av dagsidekoblingen ... -
Decontamination of persistent organic pollutants in fishmeal and fish oil. Process optimization and modeling
(Doctoral thesis, 2011-10-07)Persistent organic pollutants (POPs) are fat soluble chemical substances that persist in the environment and bioaccumulate in the food chain. Through long-range environmental transportation by air, water and migratory ... -
Design and Implementation of a High-Speed Readout and Control System for a Digital Tracking Calorimeter for proton CT
(Doctoral thesis, 2021-02-18)Particle therapy, a non-invasive technique for treating cancer using protons and light ions, has become more and more common. For example, a particle treatment facility is currently being built, in Bergen, Norway. Proton ... -
Design and implementation of fast and sparsified readout for Monolithic Active Pixel Sensors
(Doctoral thesis, 2010-11-26)This thesis focuses on the development of smart pixel readout architectures that should ultimately be targeted for the Micro-Vertex Detector (MVD) of the CBM (Compressed Baryonic Matter) experiment. The technical challenge ... -
Design, Verification and Testing of a Digital Signal Processor for Particle Detectors
(Doctoral thesis, 2019-08-14)The A Large Ion Collider Experiment (ALICE) at the Large Hadron Collider at CERN is upgrading two of its sub-detectors, the Time Projection Chamber and Muon Chambers, with new front-end electronics to handle the expected ... -
Development and data analysis of a position detector for AEḡIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy)
(Doctoral thesis, 2015-03-13)AEḡIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is an antimatter experiment based at CERN, the European Organization for Nuclear Research, whose goal is to carry out the first direct measurement of the ... -
Development and Integration of on-line Data Analysis for the ALICE Experiment
(Doctoral thesis, 2009-04-24)The ALICE detector setup is a dedicated experiment in Heavy Ion Physics, located at the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN)/ Geneva. Its various sub-detectors are electronically ... -
Development, use, and validation of the CFD tool FLACS for hydrogen safety studies
(Doctoral thesis, 2010-06-18)Computational Fluid Dynamics (CFD) calculations for gas explosion safety have been widely used for doing risk assessments within the oil and gas industry for more than a decade. Based on predicted consequences of a range ... -
A Digital Tracking Calorimeter for Proton Computed Tomography
(Doctoral thesis, 2018-05-29)Cancer is a destructive disease, in which tumor cells grow out-of-control, halting organ function. Its treatment is threefold: Radical surgery, chemotherapy and radiation therapy. Their relative usage is determined by ... -
Dynamics of excited atoms and molecules interacting with external fields
(Doctoral thesis, 2013-08-30)This thesis is a theoretical study of the behavior of electrons in atoms and molecules subjected to external electromagnetic fields. Three electronic systems have been central in this work, the atomic and quasimolecular ... -
The effect of energetic electron precipitation on the nitric oxide density in the lower thermosphere
(Doctoral thesis, 2007-02-09) -
Effects of nonlinear sound propagation in fisheries research
(Doctoral thesis, 2007-03-30) -
Elastic wave velocities and attenuation under methane hydrate growth in Bentheim sandstone - Measurements and modelling
(Doctoral thesis, 2018-12-18)Due to the potential for using methane hydrates as an energy source, localizing, monitoring and describing hydrate deposit areas are of interest. This has previously been attempted by using acoustic methods and thus ... -
Electric spark ignition of sensitive dust clouds in the sub 1 mJ range
(Doctoral thesis, 2006-05-30)This thesis describes a study of the minimum ignition energy (MIE) of easily ignitable dust clouds in air. The MIE is a central parameter when assessing the risk involved when handling combustible dusts. Current standard ... -
Empirical and Numerical Evaluation of Mechanisms in Gas Production from CH4-Hydrates: Emphasis on Kinetics, Electrical Resistivity, Depressurization and CO2-CH4 Exchange
(Doctoral thesis, 2013-12-13)Focus is shifted towards renewable energy and sources of natural gas as the demand for cleaner energy continues to increase with global awareness on anthropogenic climate change. Methane (CH4) provides advantages such as ... -
Energetic electron precipitation of pulsating aurorae and their mesospheric effects
(Doctoral thesis, 2021-06-17)Pulsating aurorae (PsAs) are low-intensity diffuse type aurora, which switches on and off with a quasi-periodic oscillation period from a few seconds to ~ 10 seconds. They are predominantly observed after midnight magnetic ...