Search for dissertations about: "x-ray flux"

Showing result 1 - 5 of 42 swedish dissertations containing the words x-ray flux.

  1. 1. Small-Animal Imaging with Liquid-Metal-Jet X-Ray Sources

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Daniel Larsson; KTH.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; X-ray; x-ray imaging; small animal; phase contrast; tomography; Physics; Fysik;

    Abstract : Small-animal x-ray imaging is an important tool for medical research. The penetration power of x-rays makes it possible to investigate the 3D structure of small animals and other thick biological samples by computed tomography (CT). READ MORE

  2. 2. Compact Liquid-Jet X-Ray Sources

    University dissertation from Stockholm : Fysik

    Author : Oscar Hemberg; KTH.; [2004]
    Keywords : liquid-jet; x-ray; EUV; plasma; electron beam; source;

    Abstract : This thesis describes the development, characterization andoptimization of compact, high-brightness, liquid-jet-targetx-ray sources. Two different source types have been developedfor different wavelength regions and applications. READ MORE

  3. 3. Compact Soft X-Ray Microscopy Sources, Optics and Instrumentation

    University dissertation from Stockholm : KTH

    Author : Per Takman; KTH.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; soft x-ray microscopy; water window; compact; laser plasma; liquid jet; zone plate optics; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : This thesis describes the development of a sub-60-nm full-period resolution compact soft x-ray microscope operating in the water-window region (2.3-4.4 nm). Soft x-ray water-window microscopy is a powerful technique for high-resolution imaging of organic materials exploiting the natural contrast mechanism between carbon and oxygen, cf. READ MORE

  4. 4. Characterisation and application of a laser-based hard x-ray source

    University dissertation from Department of Physics, Lund University

    Author : Matthias Grätz; Lund University.; Lunds universitet.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; X-ray spectroscopy; radiography; medical imaging; differential imaging; time-gated imaging; scatter reduction; Monte Carlo simulation; Atomic and molecular physics; computed tomography; Fysicumarkivet A:1998:Grätz; laser-produced plasma; Atom- och molekylärfysik; X-ray sources;

    Abstract : Hard X-rays are generated by focusing 110 fs laser pulses with intensities of about 1017 W·cm-2 onto solid metal targets. Characteristic properties of this X-ray source are the small source size, the short pulse duration and the high peak flux. READ MORE

  5. 5. Studies of X-Ray Optics And Polarimetry For Synchrotron Radiation

    University dissertation from Department of Physics, Lund University

    Author : Walan Grizolli; Lund University.; Lunds universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; X-ray optics; polarimetry; synchrotron radiation instrumentation.;

    Abstract : Synchrotron radiation sources have greatly contributed to the progress in many fields of science. The development of the storage ring technologies have made possible to obtain very low emittance electron beams, which together with the use of undulators allow to guide a very high photon flux into a very small beam size required by the experiments. READ MORE