Blar i Department of Physics and Technology på tittel

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    • Decontamination of persistent organic pollutants in fishmeal and fish oil. Process optimization and modeling 

      Oterhals, Åge (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 ...

    • Deep learning jet modifications in heavy-ion collisions 

      Du, Yi-lun; Pablos Alfonso, Daniel; Tywoniuk, Konrad (Journal article; Peer reviewed, 2021)
      Jet interactions in a hot QCD medium created in heavy-ion collisions are conventionally assessed by measuring the modification of the distributions of jet observables with respect to the proton-proton baseline. However, ...

    • Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway 

      Almenningen, Stian; Hussain, Arif; Betlem, Peter; Roy, Srikumar; Senger, Kim; Ersland, Geir (Peer reviewed; Journal article, 2019-10)
      Here we report the potential self-sealing properties of CO2 hydrate for the Longyearbyen CO2 Lab’s shallow aquifer in Svalbard, Arctic Norway, through hydrate formation experiments. The experiments were conducted on a 9 cm ...

    • The Dependence of Cold and Hot Patches on Local Plasma Transport and Particle Precipitation in Northern Hemisphere Winter 

      Zhang, Duan; Zhang, Qing-He; Ma, Y.-Z.; Oksavik, Kjellmar; Lyons, L.R.; Xing, Zan-Yang; Hairston, Marc; Deng, Z.-X.; Liu, J.-J. (Journal article; Peer reviewed, 2022)
      By using a database of 4,634 cold patches (high density and low electron temperature) and 4,700 hot patches (high density and high electron temperature) from Defense Meteorological Satellite Program F16 in 2005–2018 winter ...

    • Dependence of Sudden Stratospheric Warmings on Internal and External Drivers 

      Salminen, Antti; Asikainen, T.; Maliniemi, Ville Aleksi; Mursula, K. (Journal article; Peer reviewed, 2020)
      A sudden stratospheric warming (SSW) is a large-scale disturbance of the wintertime stratosphere, which occurs especially in the Northern Hemisphere. Earlier studies have shown that SSW occurrence depends on atmospheric ...

    • Dependence of the global dayside reconnection rate on interplanetary magnetic field By and the earth’s dipole tilt 

      Reistad, Jone Peter; Holappa, Lauri; Ohma, Anders; Gabrielse, Christine; Sur, Dibyendu; Asikainen, Timo; DeJong, Anna (Journal article; Peer reviewed, 2022)
      In the recent years, significant attention has been given to the combined effect of Interplanetary Magnetic Field (IMF) duskward component (By) and dipole tilt on the global magnetosphere-ionosphere system response. Numerous ...

    • Design and Development of the SMILE SXI Radiation Shutter Control System 

      Lylund, Ove (Master thesis, 2018-06-19)
      This thesis concerns the design, implementation, testing and verification of the radiation shutter control system, an embedded, microcontroller-based system, to be used in the Solar Wind Magnetosphere Ionosphere Link ...

    • Design and Implementation of a High-Speed Readout and Control System for a Digital Tracking Calorimeter for proton CT 

      Grøttvik, Ola Slettevoll (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 

      Torheim, Olav (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 and Simulation of Pixel Layout and Data Processing Algorithms for the DEEP Instrument 

      Andersen, Hogne (Master thesis, 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 ...

    • Design of a 60 GHz Low Noise Amplifier in a 0.13 µm SiGe BiCMOS Process 

      Pallesen, Magnus (Master thesis, 2016-06-01)
      The Large Hadron Collider (LHC) in CERN outside Geneva in Switzerland is scheduled for an upgrade to improve the luminosity. This upgrade will require higher granularity for the triggering system, increasing the need for ...

    • Design of a 60 GHz Power Amplifier in a 0.13 µm SiGe BiCMOS Process 

      Schou, Hans (Master thesis, 2016-06-01)
      The wide bandwidth in the unlicensed 60 GHz band enable short range wireless data transfer in the order of tens of gigabit per second. This, combined with the relatively low-cost, very high performance SiGe fabrication ...

    • Design of a 60 GHz VCO Hybrid Microstrip Resonator in a 0.13-µm Sige process 

      Haslum, Are (Master thesis, 2017-06-29)
      Augmented reality, 4K television and video gaming. These are just some examples were the wireless products lacks performance in terms of multi-gigabit data transfers. A solution to this challenge is the 60 GHz band. The ...

    • Design of a high power OOK modulator and verification of circuits in 60GHz SiGe BiCMOS 

      Ersdal, Magnus Rentsch (Master thesis, 2017-06-29)
      In this thesis, components for the UiB 60 GHz system are verified numerically and an on-off-keying (OOK) modulator is designed. Presence of mass in particle detector systems decrease the accuracy measuring the particle ...

    • Design of an Embedded Readout System for the ALOFT Gamma-Ray Detector Instrument 

      Heigre, Mats Fredrik (Master thesis, 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 ...

    • Design of custom ASIC for front-end electronics in a 130 nm CMOS process 

      Lindseth, Fredrik (Master thesis, 2018-06-21)
      Researchers at Birkeland center of space science at the University of Bergen is developing an instrument to be attached to a satellite, to measure energetic particles in the atmosphere and particle precipitation. This ...

    • Design of experimental hydrofoil setup using RANS CFD 

      Silden, Mette Sølvberg (Master thesis, 2024-06-03)

    • Design of High-Speed Digital Readout System for Use in Proton Computed Tomography 

      Grøttvik, Ola Slettevoll (Master thesis, 2017-06-16)
      A team at the University of Bergen is developing a proton computed tomography (CT) scanner prototype. The proton CT (pCT) scanner will introduce fewer insecurities than conventional photon CT when analyzing the location ...

    • Design og studier av lydkilde for SOBER-prosjektet 

      Pedersen, Audun (Master thesis, 2002)
      An ultrasonic sound source was constructed for the University of Bergen’s participation in the Sonic Boom European Research project. A piezoceramic disc was chosen as the active element and some of its properties were ...

    • Design, construction and commissioning of a technological prototype of a highly granular SiPM-on-tile scintillator-steel hadronic calorimeter 

      White, A.; Yu, J.; Eigen, Gerald; Zalieckas, Justas; Dannheim, D.; Elsener, K.; Grefe, C.; Klempt, W.; Linssen, L.; Sailer, A.; Sicking, E.; Lai, S.; Utehs, J.; Wilhahn, A.; Bach, O.; Brianne, E.; Ebrahimi, A.; Gadow, K.; Göttlicher, P.; Hartbrich, O.; Heuchel, D.; Irles, A.; Krüger, K.; Laudrain, A.; Lu, S.; Neubüser, C.; Provenza, A.; Reinecke, M.; Sefkow, F.; Schuwalow, S.; De Silva, Silva; Sudo, Y.; Tran, H.; Buhmann, E.; Buhmann, P.; Garutti, E.; Huck, S.; Laurien, S.; Lomidze, D.; Martens, S.; Matysek, M.; Rolph, J.; Briggl, K.; Eckert, P.; Munwes, Y.; Schultz-Coulon, H.-Ch.; Shen, W.; Stamen, R.; Kawagoe, K.; Kuhara, M.; Onoe, T.; Suehara, T.; Tsumura, S.; Yoshioka, T.; Wing, M.; Grenier, G.; Büscher, V.; Chau, P.; Krause, S.; Liu, Y.; Masetti, L.; Schäfer, U.; Tapprogge, S.; Wanke, R.; Weitzel, Q.; Corriveau, F.; Freund, B.; Emberger, L.; Gabriel, M.; Graf, C.; Hummer, F.; Sasikumar, K.; Simon, F.; Wagner, M.; Windel, H.; Bilokin, S.; Bonis, J.; Breton, D.; Cornebise, P.; Gallas, A.; Jeglot, J.; Maalmi, J.; Pöschl, R.; Thiebault, A.; Richard, F.; Zerwas, D.; Callier, S.; Dulucq, F.; de la Taille, Ch.; Martin-Chassard, G.; Raux, L.; Seguin-Moreau, N.; Cvach, J.; Janata, M.; Kovalcuk, M.; Kvasnicka, J.; Polak, I.; Smolik, J.; Vrba, V.; Zalesak, J.; Zuklin, J.; Fujita, Y.; Itoh, H.; Kanzaki, I.; Kotera, K.; Takeshita, T.; Terada, R.; Ootani, W.; Liu, L.; Masuda, R.; Mori, T.; Murata, T.; Torimaru, T.; Tsuji, N.; Ueda, Y.; Elkhalii, A.; Götze, M.; Zeitnitz, C.; Chadeeva, M.; Danilov, M.; Popova, E.; Rusinov, V.; Tarkovsky, E. (Journal article; Peer reviewed, 2023)
      The CALICE collaboration is developing highly granular electromagnetic and hadronic calorimeters for detectors at future energy frontier electron-positron colliders. After successful tests of a physics prototype, a ...