Sökning: "resonance ionization spectroscopy RIS"

Hittade 4 avhandlingar innehållade orden resonance ionization spectroscopy RIS.

  1. 1. Atomic laser resonance ionization mass spectrometry

    Författare :Lars Bengtsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; resonacne ioniation spectroscopy; photoionization; resonant photoexcitaiton; time-of-flight mass spectrometer; resonance ionization mass spectrometry; laser ablation; isotope selectivity; RIMS; RIS;

    Sammanfattning : .... LÄS MER

  3. 2. Photodetachment spectroscopy : negative ion bound states and resonances Gunnar Haeffler

    Författare :Gunnar Haeffler; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron correlation; electron affinity; shape resonance; fine structure; ion optics; photodetachment; resonance ionization spectroscopy RIS ; Wigner law; doubly excited state; Feshback resonance; negative ion; electron spectroscopy;

    Sammanfattning : .... LÄS MER

  4. 3. Photodetachment of Negative Ions. Experimental Investigations of Threshold and Continuum Structures

    Författare :Joakim Sandström; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron correlation; resonance ionization spectroscopy; doubly excited states; electron affinity; accelerator mass spectrometry; photodetachment;

    Sammanfattning : In this thesis photodetachment studies of atomic negative ions where one or several electrons are detached from a negative ion are presented. Negative ions are unique objects since their formation and destruction mechanisms strongly depend on the correlated motion of the valence electrons. LÄS MER

  5. 4. Photodetachment Studies of Negative Ion Structure

    Författare :Gunnar Haeffler; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The structure of atomic negative ions has been investigated experimentally by studying photodetachment, which is the process of photon-induced electron emission from a negative ion. The interaction between the valence electrons and the nucleus is weaker in negative ions than in atoms and positive ions. LÄS MER