Results 11 to 20 of about 226,015 (271)

The XTRA Option at the NEUTRA Facility—More Than 10 Years of Bi-Modal Neutron and X-ray Imaging at PSI

open access: yesApplied Sciences, 2021
Just after the start into the new millennium the concept for combined neutron and X-ray imaging was introduced by extending the standard configuration of the thermal neutron imaging NEUTRA instrument with a complementary 320 kV X-ray tube setup.
Eberhard H. Lehmann   +5 more
doaj   +1 more source

Melting and Re-Freezing Leads to Irreversible Changes in the Morphology and Molecular-Level Dynamics of Pfizer-BioNTech COVID-19 Vaccine

open access: yesMedicina, 2021
Background and Objectives: As an mRNA-based vaccine, the Pfizer-BioNTech COVID-19 vaccine has stringent cold storage requirements to preserve functionality of the mRNA active ingredient.
Eugene Mamontov   +3 more
doaj   +1 more source

Evolution of porous materials from ancient remedies to modern frameworks

open access: yesCommunications Chemistry, 2021
Porous materials play a significant role in modern chemistry and materials science; despite recent scientific interest, they have a history dating back to antiquity.
Gregory S. Day   +3 more
doaj   +1 more source

Precision Measurement of the n-3He Incoherent Scattering Length Using Neutron Interferometry [PDF]

open access: yes, 2009
We report the first measurement of the low-energy neutron-$^3$He incoherent scattering length using neutron interferometry: $b_i' = (-2.512\pm 0.012{statistical}\pm0.014{systematic})$ fm. This is in good agreement with a recent calculation using the AV18+
D. A. Pushin   +14 more
core   +1 more source

Towards spatially resolved magnetic small-angle scattering studies by polarized and polarization-analyzed neutron dark-field contrast imaging

open access: yesScientific Reports, 2021
In the past decade neutron dark-field contrast imaging has developed from a qualitative tool depicting microstructural inhomogeneities in bulk samples on a macroscopic scale of tens to hundreds of micrometers to a quantitative spatial resolved small ...
Jacopo Valsecchi   +5 more
doaj   +1 more source

Neutron Compton scattering [PDF]

open access: yesJournal of Physics: Condensed Matter, 1996
22 pages, LaTeX. To be published in J.
openaire   +2 more sources

MCViNE -- An object oriented Monte Carlo neutron ray tracing simulation package [PDF]

open access: yes, 2015
MCViNE (Monte-Carlo VIrtual Neutron Experiment) is a versatile Monte Carlo (MC) neutron ray-tracing program that provides researchers with tools for performing computer modeling and simulations that mirror real neutron scattering experiments. By adopting
Abernathy, Douglas L.   +8 more
core   +2 more sources

Characterization of Crystallographic Structures Using Bragg-Edge Neutron Imaging at the Spallation Neutron Source

open access: yesJournal of Imaging, 2017
Over the past decade, wavelength-dependent neutron radiography, also known as Bragg-edge imaging, has been employed as a non-destructive bulk characterization method due to its sensitivity to coherent elastic neutron scattering that is associated with ...
Gian Song   +16 more
doaj   +1 more source

Order-disorder in room-temperature ionic liquids probed via methyl quantum tunneling

open access: yesStructural Dynamics, 2021
Room-temperature ionic liquids are promising candidates for applications ranging from electrolytes for energy storage devices to lubricants for food and cellulose processing to compounds for pharmaceutics, biotransformation, and biopreservation.
Eugene Mamontov   +2 more
doaj   +1 more source

Detection of Neutron Scattering from Phase IV of Ce0.7La0.3B6: A Confirmation of the Octupole Order [PDF]

open access: yes, 2007
We have performed a single crystal neutron scattering experiment on Ce0.7La0.3B6 to investigate the order parameter of phase IV microscopically. Below the phase transition temperature 1.5 K of phase IV, weak but distinct superlattice reflections at the ...
Akatsu M.   +24 more
core   +1 more source

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