Visualization of Multiphase Flow by Neutron Radiography

Neutron-mapping polymer flow: scattering, flow visualization, and molecular theory.

Flows of complex fluids need to be understood at both macroscopic and molecular scales, because it is the macroscopic response that controls the fluid behavior, but the molecular scale that ultimately gives rise to rheological and solid-state properties. Here the flow field of an entangled polymer melt through an extended contraction, typical of many polymer processes, is imaged optically and b...

Discrete tomography in neutron radiography

Discrete tomography (DT) is an imaging technique for reconstructing discrete images from their projections using the knowledge that the object to be reconstructed contains only a few homogeneous materials characterized by known discrete absorption values. One of the main reasons for applying DT is that we will hopefully require relatively few projections. Using discreteness and some a priori in...

Neutron Radiography, Techniques and Applications

After describing the principles of the "in pool" and "dry" installations, techniques used in neutron radiography are reviewed. Use of converter foils with silver halide films for the direct and transfer methods is described. Advantages of the use of nitrocellulose film for radiographying radioactive objacts are discussed. Dynamic imaging is shortly reviewed. Standardization in the field of neut...

Non-destructive Testing: Neutron Radiography

Distribution of Water in Filling Fibres Visualised by Neutron Radiography

Christian–Doppler–Laboratory for Chemistry of Cellulosic Fibres & Textiles, Leopold–Franzens University Innsbruck; Present Address: Lenzing AG, Business Development & Innovation Textiles, Fiber Science Group, A–4860 Lenzing; Tel. +43 7672 701 2757; Fax. +43 7672 918 2757; E–Mail: [email protected] Atomic Institute of Austrian Universities, Vienna University of Technology Lenzing AG, Business ...