Search for dissertations about: "Atomic fluorescence"

Showing result 1 - 5 of 72 swedish dissertations containing the words Atomic fluorescence.

  2. 1. Dynamics and Atomic Processes in the Symbiotic Star AG Peg as Derived from Its Emission Line Spectrum

    Author : Mattias Eriksson; Astronomi - Genomgår omorganisation; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astronomi; rymdvetenskap; kosmisk kemi; cosmic chemistry; space research; Astronomy; Atom- och molekylärfysik; Atomic and molecular physics; Symbiotic stars; Fluorescence; Atomic processes;

    Abstract : The spectra of symbiotic stars are shown to frequently contain numerous fluorescence lines caused by Photo-excitation by Accidental Resonance (PAR). So far, most work involving fluorescence in stellar spectra has been assigned to the search of new PAR mechanisms, which can explain the presence of certain emission lines. READ MORE

  4. 2. Applications of laser spectroscopy to analytical chemistry, environmental monitoring and medicine

    Author : Thomas Johansson; Förbränningsmotorer; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fluorescence; spectroscopic techniques; fluorescence imaging; capillary electrophoresis; acoustic levitation; remote sensing; interstitial photodynamic therapy; multivariate analysis; Laserteknik; Laser technology; tissue optics; medical imaging; Fysicumarkivet A:2002:Johansson;

    Abstract : In this thesis spectroscopic techniques have been used in the fields of analytical chemistry, environmental and medical applications. In analytical chemistry, laser induced fluorescence was used to image the separation of substances during capillary electrophoresis. READ MORE

  5. 3. Two-Line Atomic Fluorescence for Thermometry in Reactive Flows

    Author : Jesper Borggren; Förbränningsfysik; []
    Keywords : Two-line atomic fluorescence; thermometry; Laser spectroscopy; Diode laser; Fysicumarkivet A:2018:Borggren;

    Abstract : Advances in the field of laser-based combustion diagnostics over the past decades have allowed for detailed characterisation, modelling and increased understanding of the complex combustion process. However; many combustion phenomena are still unexplained and there is a continued need for development and application of diagnostic tools to further the understanding of the combustion process. READ MORE

  6. 4. Photon induced fluorescence studies of molecules using synchrotron radiation

    Author : Jesús Álvarez Ruiz; KTH; []
    Keywords : Fluorescence; synchrotron radiation; superexcited states; UV.;

    Abstract : This Licentiate thesis presents research accomplished at theSection of Atomic and Molecular Physics at the Royal Instituteof Technology in Stockholm using photon induced fluorescencespectroscopy (PIFS) during the last two years.The main results presented are summarized:- Neutral photodissociation in CO was observed aftersynchrotron photon excitation in the range 19-26 eV bycollecting dispersed fluorescence from excited neutral C atoms. READ MORE

  7. 5. New innovative methods for non-intrusive optical diagnostics of high-voltage insulator materials

    Author : Magnus Bengtsson; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atom- och molekylärfysik; Atomic and molecular physics; akustik; optik; optics; acoustics; Electromagnetism; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi; fluorescence; optical diagnostics; high-voltage insulation; remote sensing; polymeric insulators; lidar; biological contamination; Gases; fluid dynamics; plasmas; Gaser; fluiddynamik; plasma; Energy research; Energiforskning; Elektromagnetism;

    Abstract : The purpose of this PhD thesis work has been to develop optical techniques that can help utility engineers for assessing the state of insulators in service and in a laboratory. The possibilities to use remote laser induced fluorescence for detection and imaging of biological growth such as algae and fungi have been investigated. READ MORE