Results 21 to 30 of about 6,007 (233)

Calculation Package: Derivation of Facility-Specific Derived Air Concentration (DAC) Values in Support of Spallation Neutron Source Operations [PDF]

, 2009
Derived air concentration (DAC) values for 175 radionuclides* produced at the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS), but not listed in Appendix A of 10 CFR 835 (01/01/2009 version), are presented.
McLaughlin, David A.
core   +1 more source

DENSS-multiple: A structure reconstruction method using contrast variation of small-angle neutron scattering based on the DENSS algorithm

BBA Advances, 2022
The 3D structure of biomacromolecules, such as protein and DNA/RNA, provide keys to understanding their biological functions. Among many structural biology techniques, small-angle scattering techniques with ab initio methods have been widely used to ...
Jacob Sumner, Shuo Qian
doaj   +1 more source

Bending Behavior of a Wrought Magnesium Alloy Investigated by the In Situ Pinhole Neutron Diffraction Method

Crystals, 2018
The tensile twinning and detwinning behaviors of a wrought magnesium alloy have been investigated during in situ four-point bending using the state-of-the-art high spatial resolution pinhole neutron diffraction (PIND) method.
Wei Wu, Alexandru D. Stoica, Dunji Yu, Matthew J. Frost, Harley D. Skorpenske, Ke An   +5 more
doaj   +1 more source

Dose Measurements around Spallation Neutron Sources

HNPS Proceedings, 2008
Neutron dose measurements and calculations around spallation sources are of importance for an appropriate shielding study. Two spallation sources, consisted of Pb target, have been irradiated by high-energy proton beams, delivered by the Nuclotron accelerator (JINR), Dubna.
M, Fragopoulou, S, Stoulos, M, Manolopoulou, M, Krivopustov, M, Zamani   +4 more
openaire   +3 more sources

Rapid and efficient hydrogen clathrate hydrate formation in confined nanospace

Nature Communications, 2022
Clathrate hydrates are crystalline solids physically resembling ice, in which small molecules (typically gases) are trapped inside cages of hydrogen bonded, frozen water molecules.
Judit Farrando-Perez, Rafael Balderas-Xicohtencatl, Yongqiang Cheng, Luke Daemen, Carlos Cuadrado-Collados, Manuel Martinez-Escandell, Anibal J. Ramirez-Cuesta, Joaquin Silvestre-Albero   +7 more
doaj   +1 more source

Two Pressure Cells for Quasielastic and Inelastic Neutron Scatterings [PDF]

EPJ Web of Conferences, 2022
Two clamp pressure cells for QENS and INS have been developed. One is a hybrid CuBe/NiCrAl cell which is for relative high pressure up to 2.5 GPa and another one is made from high strength aluminium alloy (mesolite NA723) with pressure up to 0.5 GPa. The
Yuan Bao, Mole Richard, Wang Chin-Wei, Shumack Amy, White Rachel, Li Bing, Tong Xin, Yu Dehong   +7 more
doaj   +1 more source

Controlling Exsolution Dynamics in High‐Entropy Oxides for Highly Active and Selective Acetylene Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Li+‐induced lattice distortion, valence variation, and local charge redistribution in a rock salt‐structured high‐entropy oxide enable controlled metal exsolution, altering the Cu–Ni–Co exsolution sequence and delivering a surface Cu0‐enriched catalyst with exceptional activity and ethylene selectivity for acetylene semi‐hydrogenation.
Hailing Yu, Caiqi Wang, Kevin M. Siniard, Qingju Wang, Yuanpeng Zhang, J. Anibal Boscoboinik, Xiao Tong, Eliseo Perez Gomez, Shuai Yuan, Arun S. Asundi, Oliver Mueller, Murillo Longo Martins, Yongqiang Cheng, Michael Richard Koehler, De‐en Jiang, Zili Wu, Zhenzhen Yang, Sheng Dai   +17 more
wiley   +2 more sources

Octahedral oxide glass network in ambient pressure neodymium titanate

Scientific Reports, 2022
Rare-earth titanates form very fragile liquids that can be made into glasses with useful optical properties. We investigate the atomic structure of 83TiO2-17Nd2O3 glass using pair distribution function (PDF) analysis of X-ray and neutron diffraction with
Stephen K. Wilke, Oliver L. G. Alderman, Chris J. Benmore, Jörg Neuefeind, Richard Weber   +4 more
doaj   +1 more source

A Survey of Students from the National School on Neutron and X-ray Scattering: Communication Habits and Preferences [PDF]

, 2010
Oak Ridge National Laboratory (ORNL) offers the scientific community unique access to two types of world-class neutron sources at a single site - the Spallation Neutron Source (SNS) and the High Flux Isotope Reactor (HFIR). The 85-MW HFIR provides one of
Bryant, Rebecca, Rebecca Bryant
core   +1 more source

Advanced Neutron Focusing Optics for Pulsed Sources: Development and Prospects

Quantum Beam Science
The evolution of neutron scattering from reactor-based steady-state sources to high-power pulsed spallation sources has necessitated a paradigm shift in neutron optics.
Taisen Zuo, Qing Chen, Hong Zhu, Zehua Han, Changli Ma, Chen Zhao, Long Tian, Tengfei Cui, Tianhao Wang, He Cheng   +9 more
doaj   +1 more source