Search for dissertations about: "Plasmafysik"

Showing result 21 - 25 of 96 swedish dissertations containing the word Plasmafysik.

  2. 21. Bridge functions in strongly coupled plasmas : theory, simulations and applications

    Author : Federico Castello Lucco; Svetlana V. Ratynskaia; Panagiotis Tolias; Giorgio Pastore; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Teoretisk fysik; Theoretical Physics; Atomic; Subatomic and Astrophysics; Atomär fysik; subatomär fysik och astrofysik;

    Abstract : Strongly coupled or non-ideal plasmas are multi-component charged systems in which at least one species possesses an average interaction energy that is comparable or larger than its thermal energy. Non-ideal plasmas are naturally occurring in dense astrophysical objects (e.g. giant planet interiors) but also engineered in the laboratory (e. READ MORE

  4. 22. Fine-scale morphology and spectral characteristics of active aurora

    Author : Hanna Dahlgren; Göran Marklund; Nickolay Ivchenko; Kari Kaila; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Aurora; Space physics; Rymdfysik;

    Abstract : Ground-based and in-situ observations of the aurora demonstrate an extreme richness in fine structure, with spatial scales down to tens of metres and time variations occurring on a fraction of a second. To further our understanding of the aurora, it is esssential to understand the mechanisms responsible for the small-scale structuring, since this is an intrinsic property of the auroral plasma. READ MORE

  5. 23. Multi-point Measurements of Ultra Low Frequency Waves in the Terrestrial Magnetosphere

    Author : Tommy Eriksson; Lars Blomberg; Ian Mann; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Space physics; Rymdfysik;

    Abstract : Waves in the mHz frequency range are prominent features of the terrestrial magnetosphere. In this frequency range the waves have wavelengths comparable to the lengths of the geomagnetic field lines. The waves are then standing waves along closed field lines with endpoints in the southern and northern ionosphere. READ MORE

  6. 24. Modeling and Experimental Studies of High Power Impulse Magnetron Sputtering Discharges

    Author : Chunqing Huo; Nils Brenning; James Bradley; KTH; []
    Keywords : ;

    Abstract : HiPIMS, high power impulse magnetron sputtering, is a promising technology that has attracted a lot of attention, ever since it was introduced in 1999. A time-dependent plasma discharge model has been developed for the ionization region (IRM) in HiPIMS discharges. READ MORE

  7. 25. Modeling High Power Impulse Magnetron Sputtering Discharges

    Author : Chunqing Huo; Nils Brenning; Svetlana Ratynskaia; James Bradley; KTH; []
    Keywords : ;

    Abstract : HiPIMS, high power impulse magnetron sputtering, is a promising technology that has attracted a lot of attention ever since its appearance. A time-dependent plasma discharge model has been developed for the ionization region in HiPIMS discharges. READ MORE