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Neutron research

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Displaying 576 - 600 of 1582

BEES: Bayesian Ensemble Estimation from SAS

August 6, 2019
Author(s)
Samuel Bowerman, Joseph E. Curtis, Joseph Clayton, Emre H. Brookes, Jeff Wereszczynski
Many biomolecular complexes exhibit a flexible ensemble of conformations in solution in order to conduct their biological function. Small angle scattering (SAS) measurements are a popular method for characterizing these flexible molecules due to their

Experimental Upper Bound and Theoretical Expectations for Parity-Violating Neutron Spin Rotation in He-4

July 16, 2019
Author(s)
Jeffrey S. Nico, Hans P. Mumm, H E. Swanson, C. D. Bass, T. D. Bass, J M. Dawkins, J C. Horton, D Luo, William M. Snow, S. C. Walbridge, B. E. Crawford, K. F. Gan, A M. Micherdzinska, C. R. Huffer, D M. Markoff, Murad Sarsour, E I. Sharapov, V Zhumabekova, Blayne R. Heckel
Neutron spin rotation is expected from quark-quark weak interactions in the Standard Model, which induce weak interactions among nucleons that violate parity. We present the results from an experiment searching for the effect of parity violation via the

Understanding Gas Storage in Cuboctahedral Porous Coordination Cages

July 4, 2019
Author(s)
Gregory R. Lorzing, Eric J. Gosselin, Benjamin Trump, Arthur H. P. York, Arni Sturluson, Casey A. Rowland, Glenn P. A. Yap, Craig Brown, Cory M. Simon, Eric D. Bloch
Porous molecular solids are promising molecular solids are promising materials for gas storage applications. However, given the relative dearth of studies concerning these materials in this regard, additional adsorption and structural studies are vital for

Disordered Heterogeneous Materials

July 1, 2019
Author(s)
Andrew J. Allen
This chapter describes the use of diffraction-based methods to characterize amorphous or disordered heterogeneous materials. Quantitative materials microstructure characterization using small-angle scattering methods is emphasized. While these techniques

Structural Investigations of Membrane-Associated Proteins by Neutron Reflectometry

July 1, 2019
Author(s)
Rebecca Eells, David Hoogerheide, Paul A. Kienzle, Mathias Loesche, Charles Majkrzak, Frank Heinrich
Neutron reflectometry is a powerful technique for probing the structure of lipid bilayer membranes and membrane-associated proteins. Measurements of the specular neutron reflectivity as a function of momentum transfer can be performed in aqueous

Wide-Angle Polarization Analysis on the Multi-Axis Crystal Spectrometer for the Study of Collective and Single Particle Dynamics of Methanol at its Prepeak

July 1, 2019
Author(s)
Wangchun Chen, Shannon M. Watson, Yiming Qiu, Jose Rodriguez Rivera, Antonio Faraone
Neutron polarization analysis capability with a large scattering angle and momentum transfer coverage has not been widely implemented for the separation of coherent and incoherent quasi-elastic neutron scattering (QENS) spectra. A feasibility test for soft
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