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Neutron research

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Displaying 176 - 200 of 1570

Analysis of a silicon comb structure using an inverse Talbot-Lau neutron grating interferometer

March 3, 2022
Author(s)
Youngju Kim, Daeseung Kim, Jongyul Kim, Daniel Hussey, Mona Mirzaei, Dmitri Pushin, Charles W. Clark, Seung Lee
We describe an inverse Talbot-Lau neutron grating interferometer that provides an extended autocorrelation length range for quantitative dark-field imaging. To our knowledge, this is the first report of a Talbot-Lau neutron grating interferometer (nTLI)

Head on Comparison of Self- and Nano-Assemblies of Gamma Peptide Nucleic Acid Amphiphiles

February 9, 2022
Author(s)
Shipra Malik, Vikas Kumar, Chung-Hao Liu, Kuo-Chih Shih, Susan T. Krueger, Mu-Ping Neih, Raman Bahal
Peptide nucleic acids (PNAs) are nucleic acid analogs with superior hybridization properties and enzymatic stability than deoxyribonucleic acid (DNA). In addition to gene targeting applications, PNAs have garnered significant attention as bio-polymer due

Low-Background Neutron Reflectometry from Solid/Liquid Interfaces

February 1, 2022
Author(s)
David Hoogerheide, Joseph Dura, Brian B. Maranville, Charles F. Majkrzak
Liquid cells are an increasingly common sample environment for neutron reflectometry experiments and are critical for measuring the properties of materials at solid/liquid interfaces. Background scattering determines the maximum useful scattering vector

Neutron vibrational spectroscopic evidence for short H???H contacts in the RNiInH1.4; 1.6 (R = Ce, La) metal hydride

February 1, 2022
Author(s)
Ryan Klein, Rafael Balderas-Xicohtencatl, Jan Petter Maehlen, Terrence J. Udovic, Craig Brown, Robert Delaplane, Yongqiang Cheng, Roman Denys, Anibal Ramirez Cuesta, Volodymyr Yartys
Intermetallic metal hydrides are critical materials for hydrogen storage applications, however, metal hydrides with greater storage capacities are still needed. Within metal hydrides, the volumetric storage capacities are limited by the number of hydrogen

Styrene-Maleic Acid Copolymer Nanodiscs to Determine the Shape of Membrane Proteins

January 28, 2022
Author(s)
Cheol Jeong, Ryan Franklin, Karen J. Edler, Kenno Vanommeslaeghe, Joseph E. Curtis
Lipid nanodiscs can be used to solubilize functional membrane proteins (MPs) in nativelike environments. Thus, they are promising reagents that have been proven useful to characterize MPs. Both protein and non-protein molecular belts have shown promise to

Dynamics of Molecular Associates in Methanol/Water Mixtures

January 26, 2022
Author(s)
Yanqin Zhai, Peng Luo, Jackson Waller, Jeffrey L. Self, Leland Harriger, Y. Z., Antonio Faraone
The dynamics of molecular associates in methanol/water mixtures was investigated using quasielastic neutron scattering. By measuring the signal from four methanol/water samples differing only by their isotopic composition, the relative motion of the water

Predicting the plateau modulus from molecular parameters of conjugated polymers

January 18, 2022
Author(s)
Abigail Fenton, Renxuan Xie, Melissa Aplan, Youngmin Lee, Michael Gill, Ryan Fair, Fabian Kempe, Michael Sommer, Chad R. Snyder, Enrique Gomez, Ralph Colby
The relationship between Kuhn length lk, Kuhn monomer volume v0, and plateau modulus GN0 , initially proposed by Graessley and Edwards for flexible polymers, and extended by Everaers, has a large gap in experimental data between the flexible and stiff

Considerations in applying neutron depth profiling to Li-ion battery research

December 14, 2021
Author(s)
Daniel Lyons, Jamie Weaver, Anne Co
Li distribution within micron-scale battery electrode materials is quantified with neutron depth profiling (NDP). This method allows determination of intra- and inter-electrode parameters such as lithiation efficiency, electrode morphology change and Li

The PROSPECT Experiment

December 14, 2021
Author(s)
Hans Pieter Mumm
The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to both perform a reactor-model independent search for eV-scale sterile neutrino oscillations at meter-long baselines and to make a precise measurement of the antineutrino