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  • Investigating the energy yield of rain cells 

    Sigurdsson, William Nævdal (The University of Bergen, 2018-12-08)
    Harvesting energy from rain has been done indirectly for hundreds of years by building dams or reservoirs. Recently, research has been made into gathering energy from individual raindrops. One of the discovered methods ...
    Master thesis
  • Modelling of Low Salinity Surfactant Polymer Coreflood Experiments 

    Nerbøvik, Sivert Mordal (The University of Bergen, 2018-12-07)
    In recent years, there has been a growing interest in the effect of varying brine composition during waterflooding. Several studies on low salinity water injection have been conducted, and the results indicate a potential ...
    Master thesis
  • Characterization of the ALPIDE chip with Helium-4 ions for Proton Computed Tomography 

    Huiberts, Simon Kristian (The University of Bergen, 2018-12-06)
    Particle therapy has become an appealing therapeutic option for patients with various tumor types. The physical properties of charged particles allow for an improved dose distribution conformality compared to conventional ...
    Master thesis
  • Inclusive J/ψ cross section in proton-proton collisions at the center-of-mass energy 13TeV with ALICE 

    Lofnes, Ingrid Mckibben (The University of Bergen, 2018-12-07)
    This thesis describes the inclusive cross section measurement of the J/ψ meson in the di-electron channel measured at mid-rapidity in proton-proton collisions at the center-of-mass energy 13 TeV. The analyzed data sample ...
    Master thesis
  • J/$\psi$ production as a function of charged-particle pseudorapidity density in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV 

    Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Shafiq F.; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Alme, Johan; Djuvsland, Øystein; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Zhu, Hongsheng; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Langøy, Rune; Lien, Jørgen André; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Alessandro, Bruno; Alexandre, Didier; Alfaro Molina, José Rubén; Alici, Andrea; ALICE, Collaboration (Elsevier, 2018-01)
    We report measurements of the inclusive J/$\psi$ yield and average transverse momentum as a function of charged-particle pseudorapidity density ${\rm d}N_{\rm ch}/{\rm d}\eta$ in p-Pb collisions at $\sqrt{s_{\rm NN}}= 5.02$ ...
    Journal article
  • $\pi^0$ and $\eta$ meson production in proton-proton collisions at $\sqrt{s}=8$ TeV 

    Acharya, Shreyasi; Adam, Jaroslav; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Shafiq F.; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Fionda, Fiorella Maria Celeste; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Zhu, Hongsheng; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Richter, Matthias Rudolph; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Al-Turany, Mohammed; Alam, Sk Noor; ALICE, Collaboration (Springer, 2018-03)
    An invariant differential cross section measurement of inclusive $\pi^{0}$ and $\eta$ meson production at mid-rapidity in pp collisions at $\sqrt{s}=8$ TeV was carried out by the ALICE experiment at the LHC. The spectra ...
    Journal article
  • On the Persistent Shape and Coherence of Pulsating Auroral Patches 

    Humberset, Beate Krøvel; Gjerløv, Jesper; Mann, Ian R.; Michell, Robert; Samara, Marilla (American Geophysical Union, 2018-05)
    The pulsating aurora covers a broad range of fluctuating shapes that are poorly characterized. The purpose of this paper is therefore to provide objective and quantitative measures of the extent to which pulsating auroral ...
    Journal article
  • Thermally excited 630.0 nm emissions in the polar ionosphere 

    Kwagala, Norah Kaggwa (The University of Bergen, 2018-08-24)
    This thesis investigates the importance and significance of thermally excited 630.0 nm emissions in the cusp and polar ionosphere. Thermal excitation by heated ambient electrons in the cusp and polar ionosphere is a rarely ...
    Doctoral thesis
  • Seasonal and Solar Cycle Variations of Thermally Excited 630.0 nm Emissions in the Polar Ionosphere 

    Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad; Laundal, Karl Magnus (American Geophysical Union, 2018-08)
    Solar cycle and seasonal variations have been found in the occurrence of strong thermally excited 630.0 nm emissions in the polar ionosphere. Measurements from the European Incoherent Scatter Svalbard Radar have been used ...
    Journal article
  • Effect of Free Water Elimination on Diffusion Indices in Healthy Volunteers and Patients with Multiple Sclerosis 

    Berg, Emile Schjeldsøe (The University of Bergen, 2018-11-08)
    Diffusion tensor imaging (DTI) is a technique in magnetic resonance imaging (MRI) that can be used to image the brain microstructure beyond the resolution that is achievable using conventional imaging. By utilizing DTI, it ...
    Master thesis
  • Design of an Embedded Readout System for the ALOFT Gamma-Ray Detector Instrument 

    Heigre, Mats Fredrik (The University of Bergen, 2018-10-24)
    Birkeland Center for Space Science has proposed a campaign known as the Airborne Lightning Observatory for FEGS & TGFs (ALOFT) to study Terrestrial Gamma-Ray Flashes (TGFs). TGFs are the most energetic natural phenomena ...
    Master thesis
  • Design and Simulation of Pixel Layout and Data Processing Algorithms for the DEEP Instrument 

    Andersen, Hogne (The University of Bergen, 2018-10-17)
    A team of researchers at Birkeland Centre for Space Science is developing an instrument that is able to measure particle precipitation into the atmosphere. The instrument consist of both electron and proton detectors, hence ...
    Master thesis
  • Challenges and Strategic Research Plans for Earth and Heliosphere: Research Infrastructures, Projects and Initiatives 

    Mann, Ingrid; Kauristie, Kirsti; Bamford, Ruth; McCrea, Ian; Moen, Jøran Idar; Oksavik, Kjellmar; Yamauchi, Masanori; Johnsen, Magnar Gullikstad; Turunen, Esa (Cambridge University Press, 2018-07-24)
    We describe existing research infrastructures relevant for space weather and open issues of space weather research including the need for sustainable observation networks and for high-quality data products as basis for ...
    Journal article
  • Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC 

    Acharya, Shreyasi; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, N; Ahn, SU; Alme, Johan; Arsene, Ionut Christian; Bätzing, Paul Christoph; Djuvsland, Øystein; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Langøy, Rune; Lardeux, Antoine Xavier; Lien, Jørgen André; Lindal, Svein; Lønne, Per-Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nesbø, Simon Voigt; Nystrand, Joakim; Rehman, Attiq Ur; Richter, Matthias Rudolph; Røed, Ketil; Røhrich, Dieter; Skaali, Toralf Bernhard; Tambave, Ganesh Jagannath; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; Qvigstad, Henrik; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; Alba, José Luis Bazo; Aleksandrov, Dimitry; Allesandro, B.; ALICE, Collaboration (Springer, 2017-09)
    The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at $\sqrt{s_{\rm NN}}=$ 2.76 TeV and p-Pb collisions at $\sqrt{s_{\rm NN}}=$ 5.02 TeV with the ALICE detector at the CERN ...
    Journal article
  • W and Z boson production in p–Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV 

    Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, N; Ahn, SU; Alme, Johan; Altinpinar, Sedat; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Lønne, Per-Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nystrand, Joakim; Qvigstad, Henrik; Rehman, Attiq Ur; Richter, Matthias Rudolph; Røed, Ketil; Røhrich, Dieter; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; Langøy, Rune; Lien, Jørgen André; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Allesandro, B.; Alexandre, D; Alfaro Molina, R; Alici, A; Alkin, A; ALICE, Collaboration (Springer, 2017-02)
    The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward ($-4.46 ...
    Journal article
  • Classical and quantum-mechanical scaling of ionization from excited hydrogen atoms in single-cycle THz pulses 

    Chovancova, Michaela; Aguen, H.; Rørstad, J. J.; Hansen, J. P. (The University of Bergen, 2017-08-25)
    Excited atoms, or nanotip surfaces, exposed to strong single-cycle terahertz radiation emit electrons with energies strongly dependent on the characteristics of the initial state. Here we consider scaling properties of the ...
    Journal article
  • Aspects of Electron Dynamics in Atoms Exposed to Single Cycle Electromagnetic Pulses 

    Chovancová, Michaela (The University of Bergen, 2018-06-29)
    This thesis covers the topic in atomic physics: Interaction of a strong external field with Rydberg hydrogen atom. In three scientific publications, we have targeted physical processes such as the field ionization in the ...
    Doctoral thesis
  • Low Salinity Waterflooding in Combination with Surfactant/Polymer. A Field Scale Simulation Study of Hybrid EOR 

    Pedersen, Vilde Loug (The University of Bergen, 2018-06-27)
    It is projected that 77% of energy consumption will originate from fossil fuels in 2040, indicating a continuous demand for crude oil [1]. Nevertheless, more than half of the hydrocarbons produced at present originate from ...
    Master thesis
  • Enhancing detectablility of tau-sneutrino signatures using machine learning 

    Alvestad, Daniel (The University of Bergen, 2018-06-27)
    In this thesis, the collider signatures of the scenario with a tau-sneutrino next-to-lightest supersymmetric particle (NLSP) at LHC are studied using machine learning. The parameter region of the non-universal Higgs masses ...
    Master thesis
  • High Harmonic Generation in Strongly Correlated Systems 

    Lysne, Markus (The University of Bergen, 2018-06-23)
    In recent years, the study of phenomena pertaining to non-linear properties of materials has seen a major upswing - especially in the context of High Harmonic Generation (HHG). In this thesis, an account of the current ...
    Master thesis

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