NANOPOLIS - Multimedia Education and Courses in Nanotechnology

Multimedia Education and Courses in Nanotechnology.

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NANOBIOTECHNOLOGY
CD-ROM format

NANOTECHNOLOGY
Educational Topics
CD-ROM or Downloadable format

NEUTRONS
Educational Topics
CD-ROM or Downloadable format

SYNCHROTRON LIGHT
Educational Topics
CD-ROM format

Nanotech Highlights

Prof. Gary Bowlin
Virginia Commonwealth University,USA

Nanotech Reviews

Neutrons Highlights

Prof. Roger Pynn
Indiana University and Spallation Neutron Source, USA

Nanopolis Partner Institutes

Neutrons Reviews

NANOPOLIS Headfigures

Dr. Alain Filhol
Institut Laue-Langevin,
Grenoble, France

Nanopolis Partner Institutes

Dr. Sandra Biedron
Argonne National Laboratory
USA

Partner Research Institutes' Coordinators

Dr. Sandra Ribeiro
Canadian Light Source

Dr. Dominique Cornuejols
European Synchrotron Radiation Facility

Dr. Karen Diederichsen
Hahn-Meitner-Institut Berlin

Dr. Alain Filhol
Institut Laue-Langevin

Prof. Roger Pynn
Indiana University and Spallation Neutron Source

Dr. Alain Menelle
Laboratoire Lion Brillouin (CEA/CNRS)

Dr. Marie-Pauline Gacoin
SOLEIL Synchrotron

"Exploring matter with Neutrons" multimedia encyclopedia
Educational excerpts

Display the full structure of the encyclopedia

Neutron Sources

Science

Tools of neutron physics

Applications - Fundamental Research

Applications - Applied Research

Applications - Industry and Medicine »Neutron measurements

Neutron Facilities

Industrial Profiles

Neutron measurements
Ever since the beginning of the railway, industry specialists try to understand the origin of problems and accidents that involve tracks, as well as to improve manufacturing and surveillance proce-dures.

Tracks are the result of repeated rolling operations made under heat and are laid on their side to cool down. As the thickness of the head and that of the base of the track are very different, this process results in curved tracks having strong residual stress. Their shaping, the movement of trains, maintenance operations (cold rolling and profiling) make this stress field even more complex.

Neutron measurements are therefore necessary to observe what is really going on in the track and to check the reliability of digital models used by engineers to predict stress. In fact, for more than 20 years, neutron and X-ray studies follow one another.

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This multimedia resource is a sample excerpt from the Exploring matter with Neutrons CD-ROM, 2nd tome of the NANOPOLIS™ encyclopedia series. The CD-ROM is available for purchase.