Search for dissertations about: "free-electron laser"

Showing result 6 - 10 of 56 swedish dissertations containing the words free-electron laser.

  2. 6. Toward Creating a Coherent, Next-Generation Light Source with special emphasis on nonlinear harmonic generation in single-pass, high-gain free-electron lasers

    Author : Sandra G. Biedron; Lunds universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Visible and Ultraviolet Sources; Intense Particle Beams and Radiation Sources; Frequency Conversion; Free-Electron Lasers; Harmonic Generation; Physics; Fysik;

    Abstract : There is a strong desire for short wavelength (~1 Å), short pulsewidth (.... READ MORE

  4. 7. Interaction of Ultrashort X-ray Pulses with Material

    Author : Magnus Bergh; Janos Hajdu; Andrea Cavalleri; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; free-electron laser; dense plasma; X-ray; radiation damage; laser physics; nano-plasma; Molecular Dynamics; Molecular biophysics; Molekylär biofysik;

    Abstract : Radiation damage limits the resolution in imaging experiments. Damage is caused by energy deposited into the sample during exposure. Ultrashort and extremely bright X-ray pulses from free-electron lasers (FELs) offer the possibility to outrun key damage processes, and temporarily improve radiation tolerance. READ MORE

  5. 8. Structural studies of small viruses using an X-ray Free Electron Laser

    Author : Anna Munke; Marvin Seibert; Dirk Hasse; Inger Andersson; Carl Caleman; Maria Selmer; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

    Abstract : X-ray crystallography has since its introduction been the most successful technique for solving protein structures. Viruses however, often possess structural components such as fibrils, tails and envelopes that make them difficult or impossible to crystallize. READ MORE

  6. 9. Advances in Biomolecular Imaging with X-ray Free-Electron Lasers

    Author : Christofer Östlin; Carl Caleman; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; XFEL; serial femtosecond x-ray crystallography; single particle imaging; radiation damage; GROMACS; Cretin; computer simulation;

    Abstract : Utilizing X-rays to solve molecular structures has proven to be an immensely powerful and im- portant scientific technique. The invention of X-ray crystallography has allowed for countless breakthroughs in chemistry, biology and material science and remains the number one method used for structural determination today. READ MORE

  7. 10. Flash Diffractive Imaging in Three Dimensions

    Author : Tomas Ekeberg; Janos Hajdu; Keith Nugent; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; X-ray; diffraction; mimivirus; three dimensional; phase retrieval; EMC; manifold embedding; CXI; FEL; free-electron laser; single particle; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

    Abstract : During the last years we have seen the birth of free-electron lasers, a new type of light source ten billion times brighter than syncrotrons and able to produce pulses only a few femtoseconds long. One of the main motivations for building these multi-million dollar machines was the prospect of imaging biological samples such as proteins and viruses in 3D without the need for crystallization or staining. READ MORE