Current Neutrons News and Events

Current Neutrons News and Events, Neutrons News Articles.
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Surrey helps to produce the world's first neutron-rich, radioactive tantalum ions
An international team of scientists have unveiled the world's first production of a purified beam of neutron-rich, radioactive tantalum ions. (2020-11-10)

No matter the size of a nuclear party, some protons and neutrons will pair up and dance
No matter the size of a nuclear party, certain protons and neutrons will always pair up and dance, a new MIT study finds. The results will help map the workings within neutron stars and heavy radioactive nuclei. (2020-11-09)

Has the hidden matter of the universe been discovered?
Astrophysicists consider that around 40% of the ordinary matter that makes up stars, planets and galaxies remains undetected, concealed in the form of a hot gas in the complexe cosmic web. Today, scientists at the Institut d'Astrophysique Spatiale (CNRS/Université Paris-Saclay) may have detected, for the first time, this hidden matter through an innovative statistical analysis of 20-year-old data. Their findings are published on November 6, 2020 in Astronomy & Astrophysics. (2020-11-06)

Story tips: Ice breaker data, bacterial breakdown, catching heat and finding order
ORNL story tips: Ice breaker data, bacterial breakdown, catching heat and finding order (2020-11-05)

Smart bottle brushes
They look like microscopic bottle brushes: Polymers with a backbone and tufts of side arms. This molecular design gives them unusual abilities: For example, they can bind active agents and release them again when the temperature changes. With the help of neutrons, a research team from the Technical University of Munich (TUM) has now succeeded to unveil the changes in the internal structure in course of the process. (2020-10-29)

Neutrons chart atomic map of COVID-19's viral replication mechanism
To better understand how the novel coronavirus behaves and how it can be stopped, scientists have completed a three-dimensional map that reveals the location of every atom in an enzyme molecule critical to SARS-CoV-2 reproduction. Researchers at the Department of Energy's Oak Ridge National Laboratory used neutron scattering to identify key information to improve the effectiveness of drug inhibitors designed to block the virus's replication mechanism. (2020-10-27)

The new heavy isotope mendelevium-244 and a puzzling short-lived fission activity
A team of scientists from GSI Helmholtzzentrum fuer Schwerionenforschung Darmstadt, University Mainz (JGU), Helmholtz Institute Mainz (HIM) and the University of Jyvaeskylae, Finland, has provided new insights into the fission processes in exotic nuclei and for this, has produced the hitherto unknown nucleus mendelevium-244. The experiments were part of ''FAIR Phase 0'', the first stage of the FAIR experimental program. The results have now been published in the journal ''Physical Review Letters''. (2020-10-21)

Ultraviolet shines light on origins of the solar system
In the search to discover the origins of our solar system, an international team of researchers, including planetary scientist and cosmochemist James Lyons of Arizona State University, has compared the composition of the sun to the composition of the most ancient materials that formed in our solar system: refractory inclusions in unmetamorphosed meteorites. (2020-10-19)

Perovskite materials: Neutrons show twinning in halide perovskites
Solar cells based on hybrid halide perovskites achieve high efficiencies. These mixed organic-inorganic semiconductors are usually produced as thin films of microcrystals. An investigation with the Laue camera at the neutron source BER II could now clarify that twinning occurs during crystallisation even at room temperature. This insight is helpful for optimising production processes of halide perovskites. (2020-10-13)

UMD researchers develop tools to sharpen 3D view of large RNA molecules
University of Maryland scientists developed a method for generating high resolution 3D images of RNA, overcoming challenges limiting 3D analysis and imaging of RNA to only small molecules and pieces of RNA for the past 50 years. Published in Science Advances, the new method, which expands the scope of nuclear magnetic resonance (NMR) spectroscopy, will enable researchers to understand the shape and structure of RNA molecules and learn how they interact with other molecules. (2020-10-07)

Understanding ghost particle interactions
Argonne scientists were part of a team that constructed a nuclear physics model capturing the interactions between neutrinos and atomic nuclei. This model building is part of a larger project to understand the role of neutrinos in the early universe. (2020-09-28)

Scientists achieve higher precision weak force measurement between protons, neutrons
Through a one-of-a-kind experiment at Oak Ridge National Laboratory, nuclear physicists have precisely measured the weak interaction between protons and neutrons. The result quantifies the weak force theory as predicted by the Standard Model of Particle Physics. (2020-09-24)

'Floppy' atomic dynamics help turn heat into electricity
Materials scientists at Duke University have uncovered an atomic mechanism that makes certain thermoelectric materials such as iron sulfide incredibly efficient near high-temperature phase transitions. The information will help fill critical knowledge gaps in the computational modeling of such materials, potentially allowing researchers to discover new and better options for technologies that rely on transforming heat into electricity. (2020-09-04)

Method proposed for more accurate determinations of neutron star radii
Neutron stars are the smallest and densest astrophysical objects with visible surfaces in the Universe. They form after gravitational collapses of the iron nuclei of massive (with masses about ten solar masses) stars at the end of their nuclear evolution. We can observe these collapses as supernovae explosions. (2020-08-17)

Probing the properties of magnetic quasi-particles
Researchers have for the first time measured a fundamental property of magnets called magnon polarisation -- and in the process, are making progress towards building low-energy devices. (2020-07-28)

New 'super light source' should allow fascinating insights into atoms
The 'Gamma Factory initiative' -- an international team of scientists -- is currently exploring a novel research tool: They propose to develop a source of high-intensity gamma rays using the existing accelerator facilities at CERN. To do this, specialized ion beams will be circulated in the SPS and LHC storage rings, which will then be excited using laser beams so that they emit photons within the gamma radiation range of the electromagnetic spectrum. This is of particular interest in connection with spectroscopic analysis of atomic nuclei. (2020-07-22)

Love-hate relationship of solvent and water leads to better biomass breakup
Scientists at the Department of Energy's Oak Ridge National Laboratory used neutron scattering and supercomputing to better understand how an organic solvent and water work together to break down plant biomass, creating a pathway to significantly improve the production of renewable biofuels and bioproducts. (2020-07-15)

A rapid finger-stick blood test quickly estimates radiation exposure in mice
A new finger-stick test can use a single drop of blood to quickly estimate how much harmful radiation mice have been exposed to, according to a study. (2020-07-15)

Introducing a new isotope: Mendelevium-244
A team of scientists working at Berkeley Lab's 88-Inch Cyclotron has discovered a new form of the human-made element mendelevium. The newly created isotope, mendelevium-244, is the 17th and lightest form of the element, which was first discovered in 1955 by a Berkeley Lab team. (2020-06-23)

Scientists carry out first space-based measurement of neutron lifetime
Scientists have found a way of measuring neutron lifetime from space for the first time -- a discovery that could teach us more about the early universe. (2020-06-11)

Physicists study mirror nuclei for precision theory test
A precision measurement of helium and hydrogen mirror isotopes reveals new questions in understanding of nuclear structure. The research, carried out at the Department of Energy's Thomas Jefferson National Accelerator Facility, was recently published as an editors' suggested read in Physical Review Letters. (2020-06-08)

Finnish researchers have discovered a new type of matter inside neutron stars
A Finnish research group has found strong evidence for the presence of exotic quark matter inside the cores of the largest neutron stars in existence. The conclusion was reached by combining recent results from theoretical particle and nuclear physics to measurements of gravitational waves from neutron star collisions. (2020-06-01)

A single proton can make a heck of a difference
Scientists from the RIKEN Nishina Center for Accelerator-Based Science and collaborators have shown that knocking out a single proton from a fluorine nucleus -- transforming it into a neutron-rich isotope of oxygen -- can have a major effect on the state of the nucleus. (2020-05-28)

Study reveals single-step strategy for recycling used nuclear fuel
A typical nuclear reactor uses only a small fraction of its fuel rod to produce power before the energy-generating reaction naturally terminates. What is left behind is an assortment of radioactive elements, including unused fuel, that are disposed of as nuclear waste in the United States. Although certain elements recycled from waste can be used for powering newer generations of nuclear reactors, extracting leftover fuel in a way that prevents possible misuse is an ongoing challenge. (2020-05-04)

Gravitational waves could prove the existence of the quark-gluon plasma
According to modern particle physics, matter produced when neutron stars merge is so dense that it could exist in a state of dissolved elementary particles. This state of matter, called quark-gluon plasma, might produce a specific signature in gravitational waves. Physicists at Goethe University Frankfurt and the Frankfurt Institute for Advanced Studies have now calculated this process using supercomputers. (2020-04-30)

MSU professor collaborates with international colleagues in Review of Modern Physics journal article
MSU Professor Alexandra Gade collaborated with international colleagues for a Review of Modern Physics article about shell evolution of exotic nuclei. The graphic displays the chart of nuclei, or proton vs. neutron number, and indicates the magic numbers that were shown to change for short-lived nuclei at the fringes of the chart. To understand the production of the elements in the Universe, the properties, including shell structure, of such nuclei have to be understood. (2020-04-22)

New handle for controlling electromagnetic properties could enable spintronic computing
Materials scientists at Duke University have shown the first clear example that a material's transition into a magnet can control instabilities in its crystalline structure that cause it to change from a conductor to an insulator. If researchers can learn to control this unique connection between physical properties identified in hexagonal iron sulfide, it could enable new technologies such as spintronic computing. (2020-04-13)

Heavy iron isotopes leaking from Earth's core
Earth's molten core may be leaking iron, according to researchers who analyzed how iron behaves inside our planet. (2020-04-13)

Condensed matter: Bethe strings experimentally observed
90 years ago, the physicist Hans Bethe postulated that unusual patterns, so-called Bethe strings, appear in certain magnetic solids. Now an international team has succeeded in experimentally detecting such Bethe strings for the first time. They used neutron scattering experiments at various neutron facilities including the unique high-field magnet of BER II at HZB. The experimental data are in excellent agreement with the theoretical prediction of Bethe and prove once again the power of quantum physics. (2020-04-06)

Deep-sea worms and bacteria team up to harvest methane
Scientists uncover an unusual partnership at the bottom of the ocean. (2020-04-03)

Discovery by UMass Lowell-led team challenges nuclear theory
A discovery by a team of researchers led by UMass Lowell nuclear physicists could change how atoms are understood by scientists and help explain extreme phenomena in outer space. (2020-04-01)

Argonne and CERN weigh in on the origin of heavy elements
Nuclear physicists from Argonne National Laboratory led an international physics experiment conducted at CERN that utilizes novel techniques developed at Argonne to study the nature and origin of heavy elements in the universe. (2020-03-30)

Frozen-planet states in exotic helium atoms
In a new study published in EPJ D. Tasko Grozdanov from Serbia and Evgeni Solov'ev from Russia describe the configuration and energy levels of antiprotonic helium that can potentially be produced by colliding slow antiprotons with ordinary helium at CERN. (2020-03-18)

Paper sheds light on infant universe and origin of matter
A new study of the QCD axion, conducted to better understand the origin of the universe, has provided insight into some of the most enduring questions in fundamental physics. (2020-03-10)

The axion solves three mysteries of the universe
A hypothetical particle called the axion could solve one of physics' great mysteries: the excess of matter over antimatter, or why we're here at all. (2020-03-10)

Argonne's pioneering user facility to add magic number factory
A forthcoming N = 126 Factory will investigate one of the great questions in physics and chemistry: how were the heavy elements from iron to uranium created? (2020-03-06)

Study: Organic molecules discovered by Curiosity Rover consistent with early life on Mars
Organic compounds called thiophenes are found on Earth in coal, crude oil and oddly enough, in white truffles, the mushroom beloved by epicureans and wild pigs. Thiophenes were also recently discovered on Mars, and Washington State University astrobiologist Dirk Schulze-Makuch thinks their presence would be consistent with the presence of early life on Mars. This study explores some of the possible pathways for thiophenes' origins on the red planet. (2020-03-05)

Scientists shed light on mystery of dark matter
Nuclear physicists at the University of York are putting forward a new candidate for dark matter -- a particle they recently discovered called the d-star hexaquark. (2020-03-03)

Geologists determine early Earth was a 'water world' by studying exposed ocean crust
Geologists -- including Iowa State's Benjamin Johnson -- studied exposed, 3.2-billion-year-old ocean crust in Australia and used that rock data to build a quantitative, inverse model of ancient seawater. The model indicates the early Earth could have been a 'water world' with submerged continents. The findings have just been published online by the journal Nature Geoscience. (2020-03-02)

Tracking down the mystery of matter
Researchers at the Paul Scherrer Institute PSI have measured a property of the neutron more precisely than ever before. In the process they found out that the elementary particle has a significantly smaller electric dipole moment than was previously assumed. With that, it has also become less likely that this dipole moment can help to explain the origin of all matter in the universe. (2020-02-28)

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