Nuclear Energy News -- ScienceDaily

Nuclear Energy Research. Nuclear power, fission and fusion, tabletop accelerators, and more. Read the latest scientific research on nuclear energy.
Nuclear Energy News -- ScienceDaily
  1. When nuclei catch up with electrons
    In an attosecond study of the H2 molecule physicists found that for light atomic nuclei -- as contained in most organic and biological molecules -- the correlation between electronic and nuclear motions cannot be ignored.
  2. Banking on sunshine: World added far more solar than fossil fuel power generating capacity in 2017
    Solar energy dominated global investment in new power generation like never before in 2017.
  3. Towards greater MRI sensitivity by harnessing quantum hyperpolarization
    Researchers have developed a technique which could increase the sensitivity of magnetic resonance imaging (MRI) for patient diagnosis.
  4. Unresolved puzzles in exotic nuclei
    Scientists discuss the structure of unstable and unbound forms of Helium, Lithium, and Beryllium nuclei that have unusually large neutron to proton ratios -- dubbed 'exotic' light nuclei. Many unstable atomic nuclei live long enough to be able serve as targets for further nuclear reactions -- especially in hot environments like the interior of stars.
  5. Pipe-crawling robot will help decommission DOE nuclear facility
    A pair of autonomous robots will soon be driving through miles of pipes at the US Department of Energy's former uranium enrichment plant in Piketon, Ohio, to identify uranium deposits on pipe walls.
  6. Chirping is welcome in birds but not in fusion devices
    Birds do it and so do doughnut-shaped fusion facilities called 'tokamaks.' But tokamak chirping -- a rapidly changing frequency wave that can be far above what the human ear can detect -- is hardly welcome to researchers who seek to bring the fusion that powers the sun and stars to Earth.
  7. Reconsidering damage production and radiation mixing in materials
    An international team of researchers present new mathematical equations that with minimal increase in computational complexity allow for accurate and experimentally testable predictions.
  8. Laser-heated nanowires produce micro-scale nuclear fusion
    Nuclear fusion, the process that powers our sun, happens when nuclear reactions between light elements produce heavier ones. It's also happening -- at a smaller scale -- in a lab. Using a compact but powerful laser to heat arrays of ordered nanowires, scientists have demonstrated micro-scale nuclear fusion in the lab. They have achieved record-setting efficiency for the generation of neutrons - chargeless sub-atomic particles resulting from the fusion process.
  9. Running on renewables: How sure can we be about the future?
    A variety of models predict the role renewables will play in 2050, but some may be over-optimistic, and should be used with caution, say researchers.
  10. Scientists observe a new quantum particle with properties of ball lightning
    Scientists have created, for the first time a three-dimensional skyrmion in a quantum gas. The skyrmion was predicted theoretically over 40 years ago, but only now has it been observed experimentally.
  11. Common bricks can be used to detect past presence of uranium, plutonium
    Researchers have demonstrated a technique that can determine whether bricks -- the common building material -- have ever been near a radiological source, and identify the specific type of source, such as high enriched uranium or plutonium.
  12. A new discovery that makes possible prediction immediately before plasma loss
    In phenomena occurring in nature and in society, it is often commented that "Something may happen at any time, but it is difficult to predict when that something may occur." Solar flares, volcanic eruptions, extreme rainfall, and economic crises are examples of this. Such cases are called sudden phenomena. Prediction of sudden phenomena is one of the important issues in physics. By comparing physical processes related to sudden phenomena by researchers from various fields, new research is being initiated in which we fully understand sudden phenomena and what we understand leads to predictions of those phenomena.
  13. Solution to the hyperfine puzzle in reach: Measurements on bismuth nuclei bridge reported gap between experiment and theory
    Last year, physicists cast doubt on our current understanding of the interplay between electrons and atomic nuclei, and are now upping the ante by proposing a solution to this so-called “hyperfine puzzle”. They have made new measurements of the magnetic properties of bismuth atomic nuclei.
  14. New evidence of nuclear fuel releases found at Fukushima
    Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.
  15. Wind and solar power could meet four-fifths of US electricity demand, study finds
    The United States could reliably meet about 80 percent of its electricity demand with solar and wind power generation, according to scientists.
  16. Shedding (high-power laser) light on the plasma density limit
    Researchers theoretically proposed the existence of density limit for hole boring by laser light on matter. They derived the maximum plasma density as a function of laser intensity, where hole boring stops and plasma blowout occurs. Theory and simulation of an ultra-high-pressure plasma state, wherein plasma's density pushes light back in the direction of the laser source, contribute to fundamental understanding, and provided grounding for applications such as laser-induced nuclear fusion.
  17. New method to replicate harsh conditions for testing materials
    Confining a plasma jet can be stress-inducing... especially on the materials especially for shielding materials. Noting the limits inherent in the test methods currently used for these materials, scientists have proposed a ground-breaking new solution: using laser-accelerated particles to stress test materials subject to harsh conditions.
  18. Faster, cheaper, nano-based manufacturing
    Engineers are developing a new method of processing nanomaterials that could lead to faster and cheaper manufacturing of flexible thin film devices -- from touch screens to window coatings, according to a new study. The 'intense pulsed light sintering' method uses high-energy light over an area nearly 7,000 times larger than a laser to fuse nanomaterials in seconds.
  19. New turbulent transport modeling shows multiscale fluctuations in heated plasma
    Researchers used a 'reduced physics' fluid model of plasma turbulence to explain unexpected properties of the density profile inside a tokamak experiment. Modeling plasma's turbulent behavior could help scientists optimize the tokamak performance in future fusion reactors like ITER.
  20. Captured electrons excite nuclei to higher energy states
    For the first time, scientists demonstrated a long-theorized nuclear effect called nuclear excitation by electron capture. This advance tests theoretical models that describe how nuclear and atomic realms interact and may also provide new insights into how star elements are created.
  21. Researchers run first tests of unique system for welding highly irradiated metal alloys
    Scientists are conducting tests of a new system that will allow researchers to advance welding technologies for repair of irradiated materials by developing processing conditions and evaluating post-weld materials properties.
  22. Helping authorities respond more quickly to airborne radiological threats
    A new technique uses existing technologies to detect potential airborne radiological materials in hours instead of days.
  23. Lithium -- it's not just for batteries: It can also reduce instabilities in fusion plasmas
    Scientists have found that lithium powder can eliminate instabilities known as edge-localized modes (ELMs) when used to coat a tungsten plasma-facing component called the 'divertor.'
  24. New discovery could improve organic solar cell performance
    Scientists have solved a mystery that could lead to gains in efficiency for organic solar cells.
  25. Pathway opens to minimize waste in solar energy capture
    Researchers have made an important discovery with significant implications for the future of solar cell material design.
Thursday the 19th. Gruppen mod atomaffalds depot i Struer kommune