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Neutron Imaging Explored as Complementary Technique for Improving Cancer Detection
August 05, 2013 — Today’s range of techniques for detection of breast and other cancers include mammography, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, positron emission tomography (PET), and optical imaging. Each technology has advantages and disadvantages, with limitations either in spatial resolution or sensitivity.
Neutron Imaging Reveals Lithium Distribution in Lithium-Air Electrodes
January 01, 2013 — Using neutron-computed tomography, researchers at the CG-1D neutron imaging instrument at Oak Ridge National Laboratory’s High Flux Isotope Reactor (HFIR) have successfully mapped the three-dimensional spatial distribution of lithium products in electrochemically discharged lithium-air cathodes.
Doug Scalapino discusses “common thread” linking unconventional superconducting materials
December 01, 2012 — Douglas Scalapino was the inaugural speaker for a new joint lecture series sponsored by the Spallation Neutron Source and the Center for Nanophase Materials Sciences at Oak Ridge National Laboratory.
Neutron scattering characterizes dynamics in polymer family
December 01, 2012 — Understanding the interplay between structure and dynamics is the key to obtaining tailor-made materials. In the last few years, a large effort has been devoted to characterizing and relating the structure and dynamic properties in families of polymers with alkyl side groups.
Aerodynamic levitator allows samples to "float on air"
December 01, 2012 — To you and to me, glass is a window pane, a mirror, something to hold the claret. To scientists, however, glass is a liquid that has lost its mobility, yet keeps its memory of being a liquid.
Theory meets experiment: structure-property relationships in an electrode material for solid-oxide fuel cells
December 01, 2012 — Fuel cell technology is one potentially very efficient and environmentally friendly way to convert the chemical energy of fuels into electricity. Solid-oxide fuel cells (SOFCs) can convert a wide variety of fuels with simpler, cheaper designs than those used in liquid electrolyte cells.
Neutron diffraction reveals promising new phosphor for white lighting in LEDs
November 01, 2012 — That college student working bleary eyed at her laptop at 3 am, that football fan capturing a brilliant touchdown with his cellphone—both are relying on new white lighting technology based on light emitting diodes (LEDs).
Neutron experiments give unprecedented look at quantum oscillations
October 23, 2012 — Researchers at the Department of Energy's Oak Ridge National Laboratory have found that nitrogen atoms in the compound uranium nitride exhibit unexpected, distinct vibrations that form a nearly ideal realization of a physics textbook model known as the isotropic quantum harmonic oscillator.
SNS researchers overcome the freezing sample problem in biostudies
October 01, 2012 — Studying biosamples at supercold temperatures, such as 200 Kelvin (-73.15°C), has been impossible in the past, as the water in such solutions inevitably freezes, and with it, the biosample's dynamic interactions. How to keep biosamples from freezing at very low temperatures has been an ongoing research problem—until now.
ORNL researchers probe invisible vacancies in fuel cell materials
August 22, 2012 — Knowing the position of missing oxygen atoms could be the key to cheaper solid oxide fuel cells with longer lifetimes. New microscopy research from the Department of Energy's Oak Ridge National Laboratory is enabling scientists to map these vacancies at an atomic scale.
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