Advanced

Energy selective neutron radiography in material research

Josic, Lidija; Steuwer, Axel LU and Lehmann, E. (2010) In Applied Physics A: Materials Science & Processing 99(3). p.515-522
Abstract
Energy selective neutron radiography was performed to describe a complex structure in polycrystalline materials. Experiments were performed with currently the highest energy and spatial resolutions achieved simultaneously, by employing a double crystal monochromator for selecting narrow energy bands from the initially polychromatic neutron beam and the neutron absorbing scintillator screen coupled with the cooled CCD camera as a detection system. It was shown that the detailed structure of the welded steel sample can be visualized and quantified by performing energy selective neutron imaging in the cold energy range, where elastic coherent scattering dominates the total cross section of the sample, showing characteristic Bragg edges. With... (More)
Energy selective neutron radiography was performed to describe a complex structure in polycrystalline materials. Experiments were performed with currently the highest energy and spatial resolutions achieved simultaneously, by employing a double crystal monochromator for selecting narrow energy bands from the initially polychromatic neutron beam and the neutron absorbing scintillator screen coupled with the cooled CCD camera as a detection system. It was shown that the detailed structure of the welded steel sample can be visualized and quantified by performing energy selective neutron imaging in the cold energy range, where elastic coherent scattering dominates the total cross section of the sample, showing characteristic Bragg edges. With the maps of crystallographic orientations over the sample area of similar to 2x2 cm(2) and thickness similar to 11.2 mm, obtained directly from radiographs, the complex structure was energy resolved with a spatial resolution of similar to 50 mu m. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics A: Materials Science & Processing
volume
99
issue
3
pages
515 - 522
publisher
Springer
external identifiers
  • wos:000277944600001
  • scopus:77954887598
ISSN
1432-0630
DOI
10.1007/s00339-010-5602-7
language
English
LU publication?
yes
id
915aeac5-5e73-4c68-a466-aa110ac6c0ff (old id 1617617)
date added to LUP
2010-06-21 11:40:43
date last changed
2018-05-29 11:14:57
@article{915aeac5-5e73-4c68-a466-aa110ac6c0ff,
  abstract     = {Energy selective neutron radiography was performed to describe a complex structure in polycrystalline materials. Experiments were performed with currently the highest energy and spatial resolutions achieved simultaneously, by employing a double crystal monochromator for selecting narrow energy bands from the initially polychromatic neutron beam and the neutron absorbing scintillator screen coupled with the cooled CCD camera as a detection system. It was shown that the detailed structure of the welded steel sample can be visualized and quantified by performing energy selective neutron imaging in the cold energy range, where elastic coherent scattering dominates the total cross section of the sample, showing characteristic Bragg edges. With the maps of crystallographic orientations over the sample area of similar to 2x2 cm(2) and thickness similar to 11.2 mm, obtained directly from radiographs, the complex structure was energy resolved with a spatial resolution of similar to 50 mu m.},
  author       = {Josic, Lidija and Steuwer, Axel and Lehmann, E.},
  issn         = {1432-0630},
  language     = {eng},
  number       = {3},
  pages        = {515--522},
  publisher    = {Springer},
  series       = {Applied Physics A: Materials Science & Processing},
  title        = {Energy selective neutron radiography in material research},
  url          = {http://dx.doi.org/10.1007/s00339-010-5602-7},
  volume       = {99},
  year         = {2010},
}