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. Algorithm provides early warning system for tracking groundwater contamination
    Scientists have developed a low-cost method for real-time monitoring of pollutants using commonly available sensors.
  2. A domestic electron ion collider would unlock scientific mysteries of atomic nuclei
    The science questions that could be answered by an electron ion collider (EIC) -- a very large-scale particle accelerator -- are significant to advancing our understanding of the atomic nuclei that make up all visible matter in the universe, says a new report.
  3. Model fuses social media, remote sensing data with goal of identifying nuclear threats
    A new computational model allows researchers to draw on normally incompatible data sets, such as satellite imagery and social media posts, to answer questions about what is happening in targeted locations. The researchers developed the model to serve as a tool for identifying violations of nuclear nonproliferation agreements.
  4. No more zigzags: Scientists uncover mechanism that stabilizes fusion plasmas
    Article describes simulation of mechanism that eliminates sawtooth instabilities in fusion plasmas.
  5. Heaviest known calcium atom discovered
    Researchers have discovered eight new rare isotopes of the elements phosphorus, sulfur, chlorine, argon, potassium, scandium and, most importantly, calcium. These are the heaviest isotopes of these elements ever found.
  6. Can ultrashort electron flashes help harvest nuclear energy?
    Physicists have now demonstrated experimentally the ability to coherently manipulate the wave function of a free electron down to the attosecond timescale (10-18 of a second). The team also developed a theory for creating zeptosecond (10-21 of a second) electron pulses, which could also be used to increase the energy yield of nuclear reactions.
  7. 'Star in a jar': World record for stellarators set
    When Germany's Wendelstein 7-X fusion facility set a world record for stellarators recently, a finely tuned instrument proved the achievement. The record strongly suggests that the design of the stellarator can be developed to capture on Earth the fusion that drives the sun and stars.
  8. New microscopy works at extreme heat, sheds light on alloys for nuclear reactors
    A new microscopy technique allows researchers to track microstructural changes in real time, even when a material is exposed to extreme heat and stress. Recently, researchers show that a stainless steel alloy called alloy 709 has potential for elevated temperature applications such as nuclear reactor structures.
  9. Scattering of W and Z bosons: Rare process like 'tiny lightsabers'
    Particle physicists have discovered an extremely rare process that can be compared to tiny lightsabers. The researchers have shown that messenger particles of the so-called weak interaction interact with each other in a scattering process.
  10. New experimental results from the largest and most sophisticated stellarator
    An international team is running tests on the largest and most sophisticated stellarator, the Wendelstein 7-X fusion experiment. Researchers are analyzing data from the first experiment campaign that took place in 2016, hoping to understand the science of fusion reactors.
  11. The vanishing nuclear industry
    Could nuclear power make a significant contribution to decarbonizing the US energy system over the next three or four decades? Probably not.
  12. Artificial intelligence accurately predicts distribution of radioactive fallout
    Researchers have created a machine-learning-based tool that can predict where radioactive emissions from nuclear power plants will disperse. After training using extensive data on previous weather patterns, the tool consistently achieved over 85 percent predictive accuracy, and up to 95 percent in winter when large and predictable weather systems dominate. This tool can aid immediate evacuation in the aftermath of disasters like those at Fukushima and Chernobyl.
  13. Atomic movie of melting gold could help design materials for future fusion reactors
    Researchers have recorded the most detailed atomic movie of gold melting after being blasted by laser light. The insights they gained into how metals liquefy have potential to aid the development of fusion power reactors, steel processing plants, spacecraft and other applications where materials have to withstand extreme conditions for long periods of time.
  14. Electrospun sodium titanate speeds up the purification of nuclear waste water
    Electrospun sodium titanate speeds up the purification of water based on selective ion exchange -- effectively extracts radio-active strontium.
  15. Probing nobelium with laser light
    Sizes and shapes of nuclei with more than 100 protons were so far experimentally inaccessible. Laser spectroscopy is an established technique in measuring fundamental properties of exotic atoms and their nuclei. For the first time, this technique was now extended to precisely measure the optical excitation of atomic levels in the atomic shell of three isotopes of the heavy element nobelium.
  16. Stellarator record for fusion product, first confirmation for optimization
    In the past experimentation round Wendelstein 7-X achieved higher temperatures and densities of the plasma, longer pulses and the stellarator record for the fusion product. Moreover, first confirmation for the optimisation concept on which Wendelstein 7-X is based, was obtained. Wendelstein 7-X is the world's largest fusion device of the stellarator type, and is used for investigating the suitability of this concept for application in power plants.
  17. Nuclear power shutdowns won't spike power prices
    Despite economic woes that could shutter two of Pennsylvania's nuclear power plants -- which generate 6 percent of the state's power -- power prices will remain steady due to low natural gas prices, according to an associate professor of energy policy and economics.
  18. Is there an end to the periodic table? Professor explores its limits
    As the 150th anniversary of the formulation of the Periodic Table of Chemical Elements looms, a professor probes the table's limits. In 2016, four new elements were added to it: nihonium, moscovium, tennessine, and oganesson. It took a decade and worldwide effort to confirm these last four elements. And now scientists wonder: how far can this table go?
  19. Study develops a model enhancing particle beam efficiency
    Inspired by tokamaks, researchers create via computer simulation an alternative for better control, in accelerators, of the particles' chaotic trajectories.
  20. New model sheds light on key physics of magnetic islands that halt fusion reactions
    Magnetic islands, bubble-like structures that form in fusion plasmas, can grow and disrupt the plasmas and damage the doughnut-shaped tokamak facilities that house fusion reactions. Recent research has used large-scale computer simulations to produce a new model that could be key to understanding how the islands interact with the surrounding plasma as they grow and lead to disruptions.
  21. Construction delays make new nuclear power plants costlier than ever
    The cost of building new nuclear power plants is nearly 20 percent higher than expected due to delays, a new analysis has found.
  22. Water is not the same as water: Two forms differ
    Water molecules exist in two different forms with almost identical physical properties. For the first time, researchers have succeeded in separating the two forms to show that they can exhibit different chemical reactivities.
  23. Fukushima radioactive particle release was significant, says new research
    Scientists say there was a significant release of radioactive particles during the Fukushima-Daiichi nuclear accident. The researchers identified the contamination using a new method and say if the particles are inhaled they could pose long-term health risks to humans.
  24. Could a particle accelerator using laser-driven implosion become a reality?
    Scientists discovered a novel particle acceleration mechanism called 'Micro-bubble implosion,' in which super-high energy hydrogen ions (relativistic protons) are emitted at the moment when bubbles shrink to atomic size through the irradiation of hydrides with micron-sized spherical bubbles by ultraintense laser pulses.
  25. Nuclear physicists leap into quantum computing with first simulations of atomic nucleus
    Scientists have now simulated an atomic nucleus using a quantum computer. The results demonstrate the ability of quantum systems to compute nuclear physics problems and serve as a benchmark for future calculations.
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