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APS » Journals » Phys. Rev. Lett. » Volume 101 » Issue 12
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Phys. Rev. Lett. 101, 123902 (2008) [4 pages]

Neutron Dark-Field Tomography

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M. Strobl1,2, C. Grünzweig3, A. Hilger2, I. Manke2, N. Kardjilov2, C. David3, and F. Pfeiffer3,4
1University of Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
2Helmholtz Zentrum Berlin, Glienickerstrasse 100, 14109 Berlin, Germany
3Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
4Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland

Received 4 May 2008; revised 9 July 2008; published 15 September 2008

We report how a grating interferometer yields neutron dark-field scatter images for tomographic investigations. The image contrast is based on ultrasmall-angle scattering. It provides otherwise inaccessible spatially resolved information about the distribution of micrometer and submicrometer sized structural formations. Three complementary sets of tomographic data corresponding to attenuation, differential phase, and small-angle scattering can be obtained from one measurement. The method is compatible with conventional imaging and provides significantly higher efficiency than existing techniques.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.123902
DOI:
10.1103/PhysRevLett.101.123902
PACS:
42.30.Wb, 03.75.Dg, 28.20.Cz, 42.25.Fx
 
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