Sökning: "plasma instrumentation"

Visar resultat 6 - 10 av 29 avhandlingar innehållade orden plasma instrumentation.

  1. 6. The development of a spectrometer for 14 MeV neutrons from fusion

    Författare :Dan Aronsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; neutron spectrometer; plasma diagnostics; time-of-flight spectrometer; associated particle spectrometer; Neutron detection; proton detection; fusion reactor instrumentation; JET tokamak; proton recoil detector;

    Sammanfattning : .... LÄS MER

  3. 7. Neutron Spectrometry Techniques for Fusion Plasmas : Instrumentation and Performance

    Författare :Erik Andersson Sundén; Göran Ericsson; Sean Conroy; Erik Traneus; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fusion; plasma diagnostics; neutron spectrometry; neutron spectroscopy; MPRu; magnetic proton recoil spectrometer; fusion; ITER; Nuclear physics; Kärnfysik; Fysik med inriktning mot tillämpad kärnfysik; Physics with specialization in Applied Nuclear Physics;

    Sammanfattning : Neutron are emitted from a deuterium plasma with energies around 2.5 MeV. The neutron spectrum is intimately related to the ion velocity distribution of the plasma. As a consequence, the analysis of neutron energy spectra can give information of the plasma rotation, the ion temperature, heating efficiency and fusion power. LÄS MER

  4. 8. Numerical and Experimental Studies of Wakefield Accelerators

    Författare :Henrik Ekerfelt; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; laser wakefield acceleration; betatron radiation; ionization-induced trapping; density down-ramp trapping; colliding pulse injection; direct laser acceleration; laser wakefield merging; particle-in-cell simulations; high-intensity optics; Fysicumarkivet A:2019:Ekerfelt;

    Sammanfattning : This thesis is based on work done by the author on the development of laser wakefield accelerators.Wakefield acceleration in plasmas is a promising technique to provide the next generation of accelerating structures and particle beams. LÄS MER

  5. 9. Detector Development, Source Characterization and Novel Applications of Laser Ion Acceleration

    Författare :Lovisa Senje; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Laser; Ion; Acceleration; Proton; Water; Sheath; Lifetime; Laser; Ion; Acceleration; Proton; Water; Radiolysis; Sheath; Detector; Fysicumarkivet A:2017:Senje;

    Sammanfattning : The main focus of the work presented in this thesis is on experimental studies oflaser acceleration of protons and other positive ions from solid targets. The topic is explored from three different angles: firstly, the development of diagnostics adapted to the ion pulses, secondly, the characterization of the source of the energetic particles and, finally, the application of laser-accelerated protons for time-resolved radiolysis of glass and water. LÄS MER

  7. 10. Development and simulated observations of the Jovian Neutrals Analyzer

    Författare :Angèle Pontoni; Manabu Shimoyama; Mats Holmström; Ove Andersson; Andrew Yau; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; space instrumentation; space physics; Ganymede; Jupiter; fysik; Physics; rymd- och plasmafysik; Space and Plasma Physics;

    Sammanfattning : This thesis deals with the development of the Jovian Neutrals Analyzer (JNA) for the Jupiter ICy moons Explorer (JUICE) mission to Jupiter, planned to launch in 2023. Jupiter, the largest planet in the Solar System, orbits the Sun at five times the distance from the Earth to the Sun, accompanied by dozens of moons, rings, and the largest object in the SolarSystem: the Jovian magnetosphere. LÄS MER