Search for dissertations about: "Rymd- och plasmafysik"

Showing result 11 - 15 of 83 swedish dissertations containing the words Rymd- och plasmafysik.

  2. 11. Electron Heating and Acceleration at Earth’s Collisionless Bow Shock

    Author : Martin Lindberg; Andris Vaivads; Philippe Savoini; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electron; heating; Acceleration; MMS; Shock; space; plasma; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Cosmic rays are ultra-relativistic particles traveling near the speed of light permeating the galaxy. Collisionless shock waves with their ubiquity throughout the universe and excellent capability of accelerating charged particles offer an explanation to the origin of cosmic rays. READ MORE

  4. 12. Structures and processes in the Mercury magnetosphere

    Author : Elisabet Liljeblad; Tomas Karlsson; Anita Kullen; Haje Korth; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mercury; MESSENGER; magnetosphere; processes; structures; Electrical Engineering; Elektro- och systemteknik;

    Abstract : The mechanisms involved in the transfer of mass and energy from the solar wind to any planetary magnetosphere is considered an important topic in space physics. With the use of the Mercury spacecraft MESSENGER's data, it has been possible to study these processes in an environment different, yet similar, to Earth's. READ MORE

  5. 13. Modelling of macroscopic melt motion in fusion devices

    Author : Emil Thorén; Svetlana V. Ratynskaia; Panagiotis Tolias; Guy Matthews; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Magnetic confinement fusion is one of the most well developed methods envisioned to achieve thermonuclear fusion energy in the future. A central obstacle that remains in the way of safe and sustainable reactor operation is the interaction that occurs between the plasma and vessel wall components. READ MORE

  6. 14. Modelling the multifaceted physics of metallic dust and droplets in fusion plasmas

    Author : Ladislas Vignitchouk; Svetlana Ratynskaia; Richard Pitts; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Plasma-material interaction constitutes one of the major scientific and technological issues affecting the development of thermonuclear fusion power plants. In particular, the release of metallic dust and droplets from plasmafacing components is a crucial aspect of reactor operation. READ MORE

  7. 15. Enhanced Radar Backscatter from the Ionosphere

    Author : Nicola Schlatter; Nickolay Ivchenko; Noora Partamies; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Incoherent scatter radars are powerful ground based instruments for ionospheric measurements. By analysis of the Doppler shifted backscatter spectrum, containing the signature of electrostatic plasma waves, plasma bulk properties are estimated. READ MORE