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JUM@P '11: Joint Users' Meeting at PSI 2011

15–16 Sept 2011
Paul Scherrer Institut, Villigen, Switzerland
Europe/Zurich timezone

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Session

Imaging

16 Sept 2011, 14:30
Paul Scherrer Institut, Villigen, Switzerland

Paul Scherrer Institut, Villigen, Switzerland

Description

chairman: A.Kaestner, M. Stampanoni

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  1. 5. Neutron Radiography Investigations to Study Material Behaviour in Loss of Coolant Nuclear Accidents
    Mr Mirco Grosse (Karlsruhe Institute of Technology)
    16/09/2011, 14:30
    Imaging
    Talk
    Neutron radiography is used to study safety related material processes occurring in design basis loss of coolant accidents (LOCA) and severe accidents (accidents beyond LOCA). The investigations comprises in-situ and ex-situ experiments to study the hydrogen uptake of zirconium alloys used as fuel rod cladding material and the redistribution of absorber materials in damaged control rods. The...
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  2. 103. Visualization and quantification of liquid water transport in softwood by means of neutron radiography
    Dr Marjan Sedighi Gilani (Wood Laboratory, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland and Chair of Building Physics, Institute for Technology in Architecture, ETHZ, Zürich, Switzerland)
    16/09/2011, 14:50
    Imaging
    Talk
    Liquid water uptake in three softwood species, in the radial, tangential and longitudinal directions, is investigated using neutron radiography at the wood growth ring scale. The high sensitivity of neutron to hydrogen atoms enables an accurate determination of the moisture content evolution in the wood. The spatial and temporal evolution of water content distribution during liquid water...
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  3. 12. In-Situ Investigations of Materials Using Ultra-Fast X-Ray Tomographic Microscopy and Laser Heating
    Dr Julie L Fife (Paul Scherrer Institut)
    16/09/2011, 15:05
    Imaging
    Talk
    Non-destructive synchrotron X-ray tomographic microscopy is ideal for studying the dynamics of materials systems in real time. To exploit the state‐of‐the‐art capabilities at the TOMCAT beamline of the SLS, a moderate to high temperature furnace has been developed. Powered by two diode lasers, it provides controlled, localized heating in a temperature range of 400 to 1600°C. When coupled with...
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  4. 8. Imaging and mechanics of liquid foam flows
    Dr Christophe Raufaste (University of Nice, LPMC)
    16/09/2011, 15:20
    Imaging
    Talk
    Liquid foams are surprising materials, even though common in our everyday life. Their structure is mainly made of gas bubbles surrounded by a continuous liquid phase and stabilized by surfactants. Owing to this multiphasic composition, they behave like solids when submitted to small stress, and flow like liquids beyond a critical yield stress. These intermediate properties directly lead to...
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  5. 10. Soft and complex matter investigations using neutron imaging: An overview
    Dr Helen Hermes (Heinrich-Heine-University Düsseldorf)
    16/09/2011, 16:00
    Imaging
    Talk
    Diffusion of solvents in and through soft and complex matter matrices is not only of fundamental interest but is also important for applications as wide-ranging as drug delivery and food packaging. Due to the relatively recent advent of digital detector systems and stable, high resolution scintillators, neutron radiography can now be used to follow in real time and in-situ solvent influx into...
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  6. 84. TOMCAT grating interferometry for biomedical imaging: Revealing the details of Alzheimer's Disease
    Dr Bernd Pinzer (Swiss Light Source, Paul Scherrer Institut (PSI), 5232, Villigen-PSI), Dr Matthias Cacquevel (École Polytechnique Fédérale de Lausanne (EPFL), Brain Mind Institute, 1015, Lausanne)
    16/09/2011, 16:20
    Imaging
    Talk
    New developments in biomedical imaging are often the source of exciting new insights into biological systems. Such a recent technology – implemented at the TOMCAT beamline – takes advantage of the coherent nature of synchrotron light to measure minute differences in the refractive index, at an unprecedented combination of sensitivity and spatial resolution. We will give a detailed account on...
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  7. 95. Material Transport in 19th century Paint Grounds. Part I: Porosity Characterization by X-ray Tomography
    Dr Claire Gervais (SIK-ISEA)
    16/09/2011, 16:40
    Imaging
    Talk
    Paintings are complex systems that remain chemically active long their completion by the artist. Increasing evidence shows that moisture plays a role as a reagent and in material transport. Our study focuses on Cuno Amiet, a Swiss painter from the late 19th - 20th century who used absorbent, porous preparation layers (i.e. ground layers) increasing their sensitivity to moisture. Several of his...
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  8. 91. Nanoscopic bone imaging for computational fluid dynamics in osteoporosis research
    Ms Ilaria Chiapparini (Institute for Biomechanics, ETH Zurich, Zurich)
    16/09/2011, 16:55
    Imaging
    Talk
    Bone undergoes continuous turnover or remodeling, where the well-coordinated action of all the bone cells keeps bone tissue healthy. Bone diseases, aging, and disuse detrimentally affect remodeling, causing severe bone loss and consequent fragility, as observed in osteoporotic patients. Osteocytes, the most abundant bone cells, orchestrate bone remodeling and act as bone mechanosensors....
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