Quantification of the neutron dark-field imaging signal in grating interferometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00396487" target="_blank" >RIV/68378271:_____/12:00396487 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.88.125104" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.88.125104</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.88.125104" target="_blank" >10.1103/PhysRevB.88.125104</a>
Alternative languages
Result language
angličtina
Original language name
Quantification of the neutron dark-field imaging signal in grating interferometry
Original language description
Here we report on a mathematical description for the neutron dark-field image (DFI) contrast based on the influence of the thickness-dependent beam broadening caused by scattering interactions and multiple refraction in the sample.We conduct radiographyexperiments to verify that the DFI signal exponentially decays as a function of thickness for both magnetic and nonmagnetic materials. Here we introduce a material-dependent parameter, the so-called linear diffusion coefficient . This allows us to perform a quantitative DFI-computed tomography. Additionally, we conduct correlative small-angle neutron-scattering experiments and validate the mathematical assumption that the angular broadening of the direct beam is proportional to the square root of the number of discrete layers.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review. B
ISSN
1098-0121
e-ISSN
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Volume of the periodical
88
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
"125104-1"-"125104-6"
UT code for WoS article
000323944800002
EID of the result in the Scopus database
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