Articles tagged with Plasma
Researchers developed a multiprotein approach to predict advanced tau pathology among amyloid-positive individuals, outperforming p-tau217 alone. This study suggests a scalable alternative to tau PET staging for clinical or research settings.
Scientists at Colorado State University have successfully created an ultracold neutral plasma, cooling electrons to near absolute zero. This breakthrough will aid in the development of better computer models for fusion energy systems and help understand white dwarf stars and extreme environments in the universe.
A systematic review and meta-analysis published in Neurology found that plasma exchange can help treat people with myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD), a rare inflammatory disorder. The procedure led to excellent recovery rates for most patients, especially those with optic neuritis, and side effects...
Research highlights the significant impact of modifiable risk factors on ischemic heart disease mortality in the US. High body mass index (BMI) and fasting plasma glucose levels have increased attributable risk over the study period, emphasizing the importance of addressing these factors to reduce mortality.
Researchers at Nagoya University review the latest results of plasma agriculture, finding that well-tuned plasma treatments boost seed vigor or yield in over two-thirds of studies. Plasma-induced epigenetic changes also promote positive expression of plant genes involved in germination and stress tolerance.
Researchers have developed a plasma technology that can produce nitrogen fertilizer suitable for cultivating rice seedlings under lunar conditions. The technology successfully neutralizes highly alkaline regolith and releases critical mineral nutrients, allowing plants to absorb them more readily.
Ionut Farcas uses reduced modeling to simulate plasma physics, reducing computation time from days to seconds. This enables real-time control and decision making in nuclear fusion devices.
Researchers at WVU are developing new laser-based techniques to observe plasma behavior in unprecedented detail, allowing them to examine how charged particles and energy move between plasmas and material surfaces. This study could lead to improved understanding of plasma sheaths and their role in surface wear and material lifetime.
The papers validate and de-risk Commonwealth Fusion Systems' approach to commercial fusion, demonstrating scientifically robust path to grid electricity in the early 2030s. Advanced computational tools combined decades of empirical research on tokamaks worldwide, predicting 1.1 GW of fusion power and 400 MW of continuous net electricity.
A plasma-based staging model using eMTBR-tau243 and %p-tau217 demonstrated strong concordance with positron emission tomography-based staging and clinical severity of Alzheimer disease. This approach may provide a scalable, minimally invasive method for biological stratification and treatment selection.
The NRL Plasma Physics Division has advanced understanding of plasma, supporting technologies critical to national defense, space science, and advanced materials. Researchers have developed novel concepts for detecting and removing space debris, as well as technologies for high-energy density physics and pulsed power.
Researchers at Northwestern University have developed a single-step process to turn methane into methanol without high heat and pressures. The method harnesses tiny bursts of plasma to break the chemical bonds in methane, producing a cleaner-burning fuel for ships and industrial boilers.
Researchers at Rice University have developed a new method to recover nearly all critical minerals from spent lithium-ion batteries, including metals like lithium and graphite. The process uses microwave-induced plasma treatment with room-temperature solvents, resulting in high recovery rates and minimal environmental impact.
The Princeton Plasma Physics Laboratory successfully completed its marathon run on the Large Helical Device, yielding key findings about fusion energy. The experiment produced world-record milestones, including sustained megawatt-level plasmas for nearly an hour, and demonstrated a unique feature to produce resilient plasmas.
A new report recommends increased investment in America's fusion diagnostic capabilities, a critical technology that could provide information to speed up the delivery of commercial fusion power plants. The report identifies key areas for research and development to advance U.S. leadership in fusion energy and plasma technologies.
A team of physicists identified the dominant mechanism responsible for energy release in molybdenum-93m using high-precision experiments. Inelastic nuclear scattering is confirmed to be the primary driver of isomer depletion under experimental conditions, contradicting previous hypotheses about nuclear excitation by electron capture.
Physicists at MIT observed clear signs that quarks create wakes as they speed through the plasma, confirming the plasma behaves like a liquid. This finding provides new insights into the properties of the quark-gluon plasma and its behavior in the early universe.
The new platform, led by PPPL, aims to speed up simulations needed to advance fusion energy research. STELLAR-AI will integrate CPUs, GPUs, and QPUs to tackle the challenges of private fusion companies, enabling faster design and optimization of stellarator devices.
Jessica Eskew, a PhD student in Auburn Physics, has been awarded a highly competitive SCGSR Fellowship to conduct fusion energy research at DIII-D. Her research focuses on runaway electrons, which can damage fusion devices if uncontrolled. Eskew will collaborate with experts in energetic particle physics and plasma control.
Researchers at Rice University have developed lab-grown diamond coatings that can naturally resist scale formation without constant intervention. The nitrogen-terminated diamond surface accumulated significantly less scale than other surfaces, making it a promising anti-scaling material for water desalination and energy systems.
A team of scientists discovered a unique radio emission, the hectometric continuum, that appears after sunset and disappears before sunrise. This phenomenon is linked to processes in the near-Earth plasma and may be related to exoplanetary magnetic fields.
Scientists successfully measured electric potential in plasmas using a non-contact diagnostic technique, enabling the detection of temporal transitions in internal plasma potential distribution. The method allows for improved predictive models of plasma behavior and confinement frameworks in fusion research.
Researchers from Kyoto University have found multi-temperature coronal mass ejections from a young solar analogue, suggesting frequent strong CMEs could have driven life emergence on early planets. The study used simultaneous space- and ground-based observations to capture hot and cool plasma components.
DGIST researchers develop innovative manufacturing process for high-performance permanent magnets, overcoming conventional limitations. The new technology creates uniform magnetic performance throughout the magnet, enabling miniaturization and weight reduction in electric vehicle motors.
A research team led by Frank Geurts measured quark-gluon plasma temperatures at various stages of its evolution, providing critical insights into a state of matter believed to have existed just microseconds after the big bang. The study revealed two distinct average temperatures depending on the mass range of dielectron pairs, indicati...
Scientists at MIT developed a method to predict how plasma in a tokamak will behave during rampdown, achieving high accuracy with limited data. This new model could significantly improve the safety and reliability of future fusion power plants.
A team of researchers from Worcester Polytechnic Institute has developed a new approach to producing hydrogen using plasma technology and metal alloys. The method reduces energy consumption and carbon emissions compared to traditional methods, making it more environmentally friendly and potentially affordable.
Hundreds of physicists from around the world will convene to present new research at the 67th annual meeting of the American Physical Society’s Division of Plasma Physics. The conference features presentations on fusion energy, plasma turbulence, laser plasma acceleration, and more.
Researchers at the University of Minnesota have developed a new method for producing iron that eliminates CO2 emissions and can be performed at room temperature. The process uses hydrogen gas plasma to strip oxygen from iron ore, producing pure iron and water vapor.
Researchers identified 33 plasma proteins that differ significantly in patients with ALS, suggesting the disease could be detected up to 10 years before symptoms appear. Machine learning models showed strong performance in separating ALS cases from non-ALS cases, with an accuracy of over 98.3%.
A comprehensive review highlights VET's potential to prevent postpartum hemorrhage and reduce maternal mortality. High-quality research on its use is limited, and a large-scale US-based study is needed to test its effectiveness.
Researchers found that individuals from African American, Hispanic and Asian groups were less likely to have elevated amyloid in the brain based on blood levels of p-tau217. This finding suggests that these groups may have a lower prevalence of amyloid and are not at sufficient risk to qualify for amyloid-lowering trials.
The sPHENIX detector precisely measured particles from high-speed collisions, revealing properties of quark-gluon plasma. This achievement enables scientists to reconstruct the early universe's conditions.
The University of Minnesota researchers discovered a new type of plasma wave in Jupiter's aurora, which helps understand the phenomenon and its potential applications for protecting Earth. The study reveals that Jupiter's magnetic field allows particles to flood into the polar cap, unlike on Earth.
Researchers used large-scale simulations to reproduce near-Earth space environment, confirming opposite charge polarities between regions. Plasma motion explains the reversal in equatorial plane.
A global collaboration found that co-deposition is the dominant driver of fuel retention in lithium walls, and adding lithium during operation is more effective than pre-coating. The study offers insights into managing tritium, a rare fusion fuel, and improving plasma stability.
A team led by Professor Masakatsu Murakami has proposed and simulated a unique scheme using micron-sized hollow cylinders with internal blades to achieve high-field levels. This approach generates intense axial magnetic fields exceeding 500 kilotesla, approaching the megatesla regime.
Researchers introduced hydrogen into high-quality Ge thin films, reducing hole density by three orders of magnitude. Low-temperature annealing repaired surface defects, further improving device performance and applicability.
CODEX observes high-energy particles and radiation from the Sun's corona, providing unprecedented data on solar activity. The findings reveal a complex interplay between magnetic fields and particle acceleration.
A new simulation approach has been developed to model plasmas used in computer chip manufacturing, allowing for improved stability and efficiency. The new code accurately conserves energy, helping to ensure the results reflect real physical processes.
A new computer model simulates magnetism and turbulence in the interstellar medium, providing unprecedented detail on the Milky Way Galaxy's overall magnetic field. The model also helps understand star formation and the propagation of cosmic rays, offering insights into astrophysical phenomenon.
Researchers at Osaka Metropolitan University found that plasma-activated medium reduces synovial sarcoma tumor growth in human cells and mice, with no obvious side effects. The treatment was verified through in vitro and in vivo tests, offering a new potential treatment option for this rare form of cancer.
Researchers have discovered key conditions needed for a stellar black hole to create plasma jets, including the rapid shrinkage of superheated gas material towards the black hole. This study reveals that jets form under dynamic conditions, providing insights into galaxy evolution and the properties of black holes.
A randomized clinical trial found prothrombin complex concentrate to have superior hemostatic efficacy compared to frozen plasma in patients requiring coagulation factor replacement during cardiac surgery. The study also showed safety advantages for the use of prothrombin complex concentrate.
A team of researchers used computer code M3D-C1 to model different valve configurations and found that six gas valves provide optimal protection for rapidly dispersing cooling gas. The study's findings will help bring fusion power closer to reality by advancing disruption mitigation strategies.
Three PPPL researchers, Frances Kraus, Jason Parisi, and Willca Villafana, are recognized for their innovative contributions to plasma physics. Their work covers various areas, including high-temperature fusion plasmas and low-temperature plasma simulations.
Physicists have created a new code, QUADCOIL, to design stellarators, which could lead to simpler and more affordable fusion facilities. The code helps balance physics and engineering by quickly ruling out unstable plasma shapes and predicting magnet complexities.
A Southwest Research Institute-led team identified electrons with energies enhanced by processes in the Alfvén wing, shaping the plasma environment around Io. These energized electrons interact with Io's atmosphere and surface, ionizing atoms and molecules and creating aurora.
A new study by researchers from the University of Arkansas System Division of Agriculture found that cold plasma-treated seeds can enhance plant growth and increase resistance to insects. However, the benefits were limited to initial stages of plant development, with control plants eventually catching up in later stages.
Researchers found that functionalizing graphene sheets via plasma treatment can lead to enhanced sensitivity for specific gases, such as ammonia. The study discovered different types of defects created on the graphene sheets depending on the gas used during plasma treatment.
Researchers have made an unexpected breakthrough in laser-plasma acceleration by introducing a novel water sheet target, resolving multiple technical challenges. This breakthrough enables the generation of faster, brighter, and more efficiently produced proton beams, paving the way for real-world applications in medicine and industry.
The KAIST research team developed an AI-based technique to accurately predict Hall thruster performance, significantly reducing the time and cost associated with iterative design, fabrication, and testing. The trained neural network ensemble model offers detailed analyses of performance parameters, accounting for key design variables.
A retrospective cohort study of 44,000 individuals found associations between baseline fasting glucose levels, age, sex, and body mass index with the development of diabetes. The study highlights individual variation in diabetes risk according to commonly measured clinical variables, suggesting potential for targeted interventions.
Researchers Choongseok Chang, Seung-Hoe Ku, and Robert Hager developed simulations that closely matched experiments in the DIII-D device, revealing that turbulence doubles the exhaust layer width. This discovery supports predictions that ITER could have a broader exhaust footprint than previously thought.
International researchers have found that energetic particles can alter the structure of edge-localized modes in tokamaks. This interaction mechanism could lead to more efficient ELM control techniques and improved plasma stability. The study's results have significant implications for future fusion power plants.
A team of researchers discovered supra-thermal DT ions beyond Maxwellian distributions in ICF burning plasmas. The new hybrid model predicts a ~10 ps ignition moment promotion, enhanced alpha particle densities at the hotspot center, and the presence of supra-thermal D ions below 34 keV.
Researchers discovered supra-thermal DT ions beyond Maxwellian distributions in burning plasmas of inertial confinement fusion. The findings, achieved through innovative modeling and simulations, challenge existing models and offer new insights into the physics of these extreme conditions.
Researchers at Princeton Plasma Physics Laboratory have developed a technique to prevent unwanted waves that siphon off needed energy, increasing the efficiency of fusion reactions. Positioning a metal grate at a slight angle enhances heat put into the plasma and reduces slow modes, leading to more powerful and efficient fusion heating.
A new simulation method has been introduced to investigate the Earth's core, revealing significant effects of magnetism on material properties. The approach combines molecular dynamics and spin dynamics, using machine learning to determine force fields with high precision.
Researchers successfully accelerated high-quality beams of electrons to over 10 billion electronvolts in 30 centimeters, producing a 'dark current-free' beam without wasting energy. The dual-laser system and advanced gas injector system enabled this record-breaking acceleration, marking a major step forward in laser-plasma acceleration.