Search for dissertations about: "Ronchi test"

Found 3 swedish dissertations containing the words Ronchi test.

  2. 1. Education and dementing disorders : the role of schooling in dementia and cognitive impairment

    Author : Diana De Ronchi; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Education; cognitive impairment; MCI; dementia; Alzheimer s disease; socioeconomic status; risk factors; cognitive reserve; prevalence; stroke; occupation;

    Abstract : This doctoral thesis aimed to investigate the complex relationship between education, dementias, and cognitive impairment. Two different databases were used: the Faenza and the AIDS Projects. READ MORE

  4. 2. High-Aspect Ratio Nanofabrication for Hard X-Ray Zone Plates

    Author : Karolis Parfeniukas; Ulrich Vogt; Hans Hertz; Anne Sakdinawat; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nanofabrication; x-ray optics; zone plate; tungsten; silicon; reactive ion etching; metal-assisted chemical etching; Ronchi test; Fysik; Physics;

    Abstract : Hard x-ray nanoimaging enables structural investigations of new materials for many applications. For high-resolution experiments, zone plate x-ray optics are commonly chosen.Two methods of zone plate nanofabrication are presented in this thesis.Zone plates are circular diffraction gratings with radially decreasing grating period. READ MORE

  5. 3. Zone Plates for Hard X-Ray Free-Electron Lasers

    Author : Daniel Nilsson; Ulrich Vogt; Thomas Tschentscher; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; X-ray optics; Zone plates; XFEL; x-rays; free-electron laser; heat transfer;

    Abstract : Hard x-ray free-electron lasers are novel sources of coherent x-rays with unprecedented brightness and very short pulses. The radiation from these sources enables a wide range of new experiments that were not possible with previous x-ray sources. Many of these experiments require the possibility to focus the intense x-ray beam onto small samples. READ MORE