Sökning: "argon ions"

Visar resultat 6 - 10 av 21 avhandlingar innehållade orden argon ions.

  1. 6. Experimental Techniques for Studies in Atomic & Molecular Physics

    Författare :Filip Heijkenskjöld; Jan-Erik Rubensson; Peder Royen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; spectroscopy; fast ion beam laser spectroscopy; time of flight photoelectron photoelectron coincidence; hyperfine structure; Rabi oscillation; Physics; Fysik;

    Sammanfattning : This thesis is based on a selection of six different experimental techniques used for studies in atomic and molecular physics. The techniques analysed in the thesis are compared to find similarities in strategies and ways to avoid sources of error.Paper 1 deals with collision based spectroscopy with 60 keV Xe6+ ions on sodium and argon gas targets. LÄS MER

  2. 7. Elastic Stability and Piezoelectric Power Generation Using ZnO Nanostructures

    Författare :Riaz Mohammad; Magnus Willander; Omer Nour; Shunri Oda; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Nanotechnology combines the effort between science and engineering using the approaches of either top-to-bottom or bottom-to-top techniques. A hybrid approach of the above techniques is also used for the fabrication of nanodevices. LÄS MER

  3. 8. Probing Electron Correlation on the Attosecond Timescale

    Författare :Diego Guenot; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2014:Guénot;

    Sammanfattning : This thesis describes how photoemission stimulated by an attosecond pulse train (APT) can be used to extract information on electron correlation in simple quantum systems such as atoms. The emission of the electron by an APT induces a reorganization of the electrons remaining in the ion core. LÄS MER

  4. 9. Simulation of runaway electron generation during plasma shutdown by impurity injection

    Författare :Tamás Fehér; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; disruption mitigation; fusion plasma physics; impurity injection; runaway electron; tokamak;

    Sammanfattning : Disruptions are dangerous instabilities in tokamaks that should be avoided or mitigated. One possible disruption mitigation method is to inject impurities into the plasma to shut it down in a controlled way. Runaway Electrons (REs) can be generated after the plasma is cooled down bythe impurities and these electrons can damage the tokamak. LÄS MER

  5. 10. High Resolution Dielectronic Recombination Studies at CRYRING

    Författare :Zong Weiyong; Donald M Crothers; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; fysik;

    Sammanfattning : The works presented in this thesis are based on experimental studies on dielectronic recombination (DR) at the Stockholm storage ring CRYRING. The experiments have taken full advantage of the low energy spread of the electron beam provided by the electron cooler of the ring. Energy resolution of 10-1eV at full width half maximum has been achieved. LÄS MER