Search for dissertations about: "x-ray spectroscopy"

Showing result 1 - 5 of 616 swedish dissertations containing the words x-ray spectroscopy.

  1. 1. Photon Counting X-ray Detector Systems

    University dissertation from Sundsvall : Mid Sweden University

    Author : Börje Norlin; Mittuniversitetet.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Monte Carlo simulation; Three-dimensional; Energy weighting; X-ray; Pixel detector; Charge sharing; Imaging; Medipix; Spectroscopy; Dental diagnosis; Image quality; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Abstract : This licentiate thesis concerns the development and characterisation of X-ray imaging detector systems. “Colour” X-ray imaging opens up new perspectives within the fields of medical X-ray diagnosis and also in industrial X-ray quality control. READ MORE

  2. 2. Characterisation and application of photon counting X-ray detector systems

    University dissertation from Sundsvall : Mid Sweden Univ

    Author : Börje Norlin; Mittuniversitetet.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Monte Carlo simulation; Three-dimensional; X-ray flouriscence; Charge transport; Semiconductor materials; Image sensors; CdTe; Photon counting; Synchrotron radiation; Material recognition; X-ray; Pixel Detector; Silicon; Charge sharing; Imaging; Medipix; Spectroscopy; Dental diagnosis; Image quality; Energy weighting; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Abstract : This thesis concerns the development and characterisation of X-ray imaging systems based on single photon processing. “Colour” X-ray imaging opens up new perspectives within the fields of medical X-ray diagnosis and also in industrial X-ray quality control. READ MORE

  3. 3. X-ray scattering and spectroscopy of supercooled water and ice

    University dissertation from Stockholm : Department of Physics, Stockholm University

    Author : Jonas A. Sellberg; Stockholms universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; supercooled water; ice; x-ray scattering; x-ray spectroscopy; free-electron laser; kemisk fysik; Chemical Physics;

    Abstract : This thesis presents experimental studies of water and ice at near-atmospheric pressures using intense x-rays only accessible at synchrotrons and free-electron lasers. In particular, it focuses on the deeply supercooled, metastable state and its implications on ice nucleation. READ MORE

  4. 4. Core Level Spectroscopy of Water and Ice

    University dissertation from Stockholm : Fysikum

    Author : Dennis Nordlund; Stockholms universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; x-ray adsorption spectroscopy; photoemission spectroscopy; x-ray photoelectron spectroscopy; platinum; x-ray emission spectroscopy; density functional theory; hydrogen-bonded; H-bond; water; ice; electronic structure; excited state dynamics; proton dynamics; water adsorption; liquid water; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : A core level spectroscopy study of ice and water is presented in this thesis. Combining a number of experiments and spectrum calculations based on density functional theory, changes in the local valence electronic structure are shown to be sensitive to the local H-bonding configurations. READ MORE

  5. 5. Development and Characterisation of a Laser-Based Hard X-Ray Source

    University dissertation from Department of Physics, Lund University

    Author : Carl Tillman; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; laser-produced plasma; X-ray source; laser; X-ray spectroscopy; dosimetry; radiography; medical imaging; radiation effects; differential imaging; Fysicumarkivet A:1996:Tillman; Atom- och molekylärfysik; Atomic and molecular physics;

    Abstract : A laser-produced plasma was generated by focusing 100 fs laser pulses, with an energy of 150 mJ, onto metal targets. The laser intensity was expected to reach 10E17 W/cm2. Radiation was emitted from the created plasma, with photon energies extending up to the MeV regime. READ MORE