Characterization of the background in epithermal neutron scattering measurements at pulsed neutron sources

2006 ◽  
Vol 568 (2) ◽  
pp. 826-838 ◽  
Author(s):  
A. Pietropaolo ◽  
M. Tardocchi ◽  
E.M. Schooneveld ◽  
R. Senesi
Keyword(s):  
Neutron Scattering ◽  
Epithermal Neutron ◽  
Neutron Sources ◽  
Scattering Measurements ◽  
Pulsed Neutron

Characterization of Polymer Clay Nanocomposite Electrolyte Motions via Combined NMR and Neutron Scattering Studies

2002 ◽  
Vol 756 ◽  
Author(s):  
Luis J. Smith ◽  
Jean-Marc Zanotti ◽  
Giselle Sandi ◽  
Kathleen A. Carrado ◽  
Patrice Porion ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Mean Square Displacement ◽  
Polymer Clay Nanocomposite ◽  
Scattering Measurements ◽  
Lower Activation ◽  
Poly Ethylene Oxide ◽  
Nanocomposite Electrolyte ◽  
The Mean ◽  
Poly Ethylene

ABSTRACTThe activation energies for poly(ethylene oxide) motion in a polymer clay composite are reported for the polymer intercalated and external to the clay. PEO intercalated into the clay is found to have a lower activation energy for motion but also a larger Arrhenius prefactor, by almost two orders of magnitude, than for PEO found external to the clay. Neutron scattering measurements confirm the presence of two environments and the effects of confinement on the mean square displacement of the PEO.

Energy-resolved small-angle neutron scattering from steel

2017 ◽  
Vol 50 (2) ◽  
pp. 334-339 ◽  
Author(s):  
Yojiro Oba ◽  
Satoshi Morooka ◽  
Kazuki Ohishi ◽  
Jun-ichi Suzuki ◽  
Shin-ichi Takata ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Experimental Technique ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Recent Progress ◽  
Neutron Sources ◽  
Analysis Technique ◽  
Neutron Attenuation ◽  
Pulsed Neutron

Recent progress of pulsed neutron sources has enabled energy-resolved analysis of neutron attenuation spectra, which include information on neutron scattering. In this study, a new analysis technique for small-angle neutron scattering (SANS) is demonstrated. A clear difference is observed in the neutron attenuation spectra between steels with different nanostructures; this difference can be understood as arising from attenuation due to SANS. The neutron attenuation spectra calculated from the corresponding SANS profiles agree well with the experimentally observed attenuation spectra. This result indicates that measurement of neutron attenuation spectra may enable the development of a novel experimental technique,i.e.energy-resolved SANS.

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