Search for dissertations about: "Hans Hertz"

Showing result 1 - 5 of 26 swedish dissertations containing the words Hans Hertz.

  1. 1. Laboratory soft x-ray microscopy and tomography

    Author : Michael Bertilson; Hans Hertz; Gerd Schneider; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; Microscopy; X-ray optics; Diffractive optics; Zone plates; X-ray microscopy; Soft X-ray physics; Tomography; Optics; Optik; Physics; Fysik;

    Abstract : Soft x-ray microscopy in the water-window (λ = 2.28 nm – 4.36 nm) is based on zone-plate optics and allows high-resolution imaging of, e.g. READ MORE

  2. 2. Optical and x-ray studies of ice growth in water

    Author : Niloofar Esmaeildoost; Jonas Sellberg; Hans Hertz; Thomas Hansen; KTH; []
    Keywords : Physics; Fysik;

    Abstract : The key purpose of this thesis is to study the structure of metastable water and its transformation into ice upon deep supercooling using x-ray scattering as well as optical microscopy. In all experiments, micrometer-sized water droplets were evaporatively cooled in vacuum and probed either by x-rays or optical illumination. READ MORE

  3. 3. Laboratory Soft X-Ray Cryo Microscopy: Source, System and Bio Applications

    Author : Emelie Fogelqvist; Hans Hertz; David Attwood; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; X-ray microscopy; X-ray optics; Instrumentation; Laser plasma; Cryofixation; Tomography; Tomographic reconstruction; Autophagy; Immune synapse; Physics; Fysik; Physics;

    Abstract : Soft x-ray microscopes routinely perform high-resolution 3D imaging of biological cells in their near-native environment with short exposure times at synchrotron radiation facilities. Some laboratory-sized microscopes are aiming to make this imaging technique more accessible to a wider scientific community. READ MORE

  4. 4. Nanofabrication of Zone Plate Optics for Compact Soft X-Ray Microscopy

    Author : Anders Holmberg; Hans Hertz; Christian David; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Physics; Fysik;

    Abstract : This Thesis describes the development of the KTH/Stockholm nanofabrication process for diffractive soft x-ray optics. The effort is motivated by the need for and requirement of specially designed diffractive optics and test objects for compact x-ray microscopy as well as optics for other applications such as phase imaging. READ MORE

  5. 5. Phase-Contrast X-Ray Imaging of Complex Objects

    Author : Ilian Häggmark; Hans Hertz; Anna Burvall; Henning Friis Poulsen; KTH; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Fysik; Physics; Biological and Biomedical Physics; Biologisk och biomedicinsk fysik;

    Abstract : X-ray imaging is a group of techniques using electromagnetic radiation of high energy. The ability to quickly visualize internal structures in thick opaque objects has made it an indispensable tool in research, medicine, and industry. READ MORE