Articles tagged with Plasma Temperature
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.
Zap Energy's FuZE-3 device has reached electron pressures of up to 830 MPa, or 1.6 GPa total, in a sheared-flow-stabilized Z pinch, a major milestone on the path to scientific energy gain. The device achieves this high pressure through independent control of plasma acceleration and compression.
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.
A UVA professor has made new discoveries about electron kinetic behavior within plasma beams, potentially revealing the 'shape' of future space technology. The findings could lead to more efficient and reliable electric propulsion systems for long-duration space missions.
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 University at Buffalo have developed a plasma-electrochemical reactor that produces ammonia from nitrogen in the air and water, with no carbon footprint. The process uses renewable electricity and can be scaled up to meet industrial demands.
Researchers at University of Copenhagen used experimental data to predict hitherto unchartered changes in the shape of nuclei, shedding light on nuclear structure and strong interactions. The study used a high-energy collision experiment at CERN's LHC to analyze the resulting products and reconstruct the processes.
The project aims to identify and fabricate optimized first-wall materials using advanced computer simulations enhanced by machine learning, accelerating the discovery of new materials by 100-fold. The research will leverage synthesis, irradiation, and testing facilities to conduct a high-impact materials discovery campaign.
Brian Leard, a PhD student at Lehigh University, has been awarded a prestigious DOE grant to conduct research at the DIII-D National Fusion Facility. He aims to develop simulation codes that can optimize actuator operation and improve the accuracy of plasma physics predictions.
A novel bioanalytical method was developed to quantify ellagic acid in Wistar rat plasma, demonstrating high linearity, precision, and stability. The method holds promise for clinical laboratory applications.
Scientists at the DOE's Princeton Plasma Physics Laboratory have directly observed magneto-Rayleigh Taylor instabilities in plasma, which could aid in understanding how black holes produce vast intergalactic jets. The observation confirms that magnetic fields play a crucial role in forming these jets.
Researchers at the University of Liverpool have achieved a significant milestone in converting carbon dioxide into valuable fuels and chemicals. They report a pioneering plasma-catalytic process for the hydrogenation of CO2 to methanol at room temperature and atmospheric pressure, achieving impressive selectivity rates.
Researchers at Lehigh University use mayonnaise to simulate the phases of Rayleigh-Taylor instability in nuclear fusion, which could inform the design of future inertial confinement fusion processes. The team found that understanding the transition between elastic and stable plastic phases is critical for controlling the instability.
Researchers at Nagoya University have developed an ammonia-free technique for producing GaN semiconductors, enabling high-quality growth at lower temperatures and reduced raw material consumption. This method also reduces the need for detoxifying systems and energy expenditure.
Researchers studied jet energy loss in nucleus-nucleus collisions, revealing a decrease in the jet transport coefficient with increasing medium temperature. This discovery provides a more accurate understanding of jet quenching in high-energy collisions.
Researchers found that a photon's polarization is topological, meaning it doesn't change as it moves through materials and environments. This property can help design better light beams for heating and measuring plasma, which could increase fusion efficiency.
University of Sydney researchers have developed a chemical process using plasma that could create sustainable jet fuel from methane gas emitted from landfills. This process has the potential to eliminate the need for traditional and sustainable jet fuels, which add further emissions into the atmosphere. By capturing almost the exact co...
Scientists at Zap Energy have achieved a major breakthrough in fusion technology, creating a plasma with electron temperatures of up to 37 million degrees Celsius. The company's sheared-flow-stabilized Z pinch device far exceeds the previous record and offers a promising path to commercial fusion energy.
Researchers analyzed 42 superflares using two models and concluded that hydrogen recombination is the most physically plausible explanation for high levels of energy. This model is supported by flare processes described in solar flares, which are well-studied phenomena.
Researchers developed mesoporous metal oxides on flexible materials using synergetic effect of heat and plasma at lower temperatures. The devices can withstand bending thousands of times without losing energy storage performance.
Researchers discovered a new class of plasma oscillations that can exhibit extraordinary features, enabling innovative advancements in particle acceleration and fusion. This finding has significant implications for achieving clean-burning commercial fusion energy.
Researchers from the University of Rochester's Laboratory for Laser Energetics demonstrated an effective 'spark plug' for direct-drive methods of inertial confinement fusion (ICF), achieving a plasma hot enough to initiate fusion reactions. The successful experiments use the OMEGA laser system, with the goal of eventually producing fus...
The Lehigh University Plasma Control Group is working on advanced controls and machine learning to improve plasma dynamics simulation capabilities and stabilize superheated gases in future reactors. The goal is to address technological issues with ITER and FPP, ensuring safe and controllable operation.
Researchers from Kaunas University of Technology and Lithuanian Energy Institute investigate the possibilities of plasma gasification to convert surgical mask waste into hydrogen-rich syngas, which shows a 42% higher heating value than biomass. The obtained syngas can be used as clean fuel with low carbon emissions.
UVA professor Patrick Hopkins is developing a 'freeze ray' technology to cool electronics in spacecraft and high-altitude jets, which can't be cooled by nature due to the vacuum of space. The technology uses heat-generating plasma to create localized cooling, and has been granted $750,000 by the Air Force.
Researchers at Kyoto University have developed a new fusion model that accurately predicts the rotational temperature of hydrogen molecules near the walls of tokamaks. This innovation enables the effective management of heat load and extends the lifetime of future fusion devices.
A group of scientists from the JIHT, HSE and MIPT have developed a novel solution: OpenDust, a fast, open-source code that performs calculations ten times faster than existing analogues. The algorithm uses multiple GPUs simultaneously to accelerate computations.
Researchers used simulations to analyze the Lyman Continuum spectrum in dozens of simulated solar flares, confirming its connection to plasma temperature. The study found that analysis of this spectrum can be used for diagnosis of the solar plasma during solar storms.
Researchers create a hydrogen plasma with known temperature anisotropy, demonstrating the Weibel instability and its potential to seed galactic dynamo magnetic fields. The study uses a novel experimental platform to measure the complex topology of generated magnetic fields.
Lehigh University has received nearly $1.75 million in funding from the US Department of Energy to support fusion energy research, specifically for ITER's long-pulse scenarios. The project aims to prepare ITER for operation and address critical research questions related to plasma control.
Researchers used machine learning to track turbulent structures in fusion reactors, gaining detailed information on their behavior and heat flows. The approach enables more accurate engineering requirements for reactor walls and could lead to improved energy efficiency.
Researchers have developed a high-performance laser system capable of measuring electron temperature and density in plasma at a world record speed of 20,000 times per second. This breakthrough enables detailed measurements of transient phenomena in plasmas, crucial for understanding and controlling fusion power generation.
Researchers at National Institutes of Natural Sciences observe plasma heating due to electromagnetic waves for the first time. They used a new measurement system to capture ultrahigh-speed data, revealing that Landau damping transfers energy from high-energy particles to electromagnetic waves, which then heat the plasma.
Researchers from Tokyo Tech investigated nonthermal plasma-promoted CO2 hydrogenation on Pd2Ga/SiO2 catalysts, revealing a more than two-fold increase in CO2 conversion compared to thermal methods. The study provides mechanistic insights into the NTP-activated species and metallic catalyst interaction.
A new study proposes a mathematical tool to understand the fractal structure of quark-gluon plasma, which is formed in high-energy collisions. The fractal structure explains some phenomena seen in these collisions, including particle momentum distributions that follow Tsallis statistics.
Australian and Asian researchers have used a simulation of a new experimental technique to determine accurate electron cross-sections in liquid using a micro-jet of water, paving the way for more efficient plasma-liquid models. This proof-of-concept model uses machine learning and Monte Carlo training data to enhance predictive power.
Scientists at Japan's National Institute for Fusion Science discovered a self-sustained mechanism that controls the heat load on the divertor in a fusion reactor. By analyzing the magnetic island and plasma current mirror, they found a competition between two processes that can be described by a biological predator-prey model, which su...
Researchers have found a way to modify carbon nanotubes to meet the requirements of novel electronic devices. The team discovered that exposure to plasma or shortening tube lengths leads to a drop in conductivity at low terahertz frequencies, but at high enough frequencies electrons move freely.
Researchers at GIST used ultrafast X-ray pulses to study warm dense copper electrons, revealing that bonds harden before melting. The findings could improve understanding of extraordinary material properties and their underlying mechanisms.
Researchers create laboratory model to experimentally confirm the behavior of plasma waves as predicted by theory. By studying the properties of liquid metals and high magnetic fields, they successfully generate Alfvén waves in a molten alkali metal, breaking through the sound barrier for the first time.
Scientists have discovered that hypervelocity dust impacts on a spacecraft can produce plasma explosions and create debris clouds, disturbing its operations. These events can also generate clouds of debris that expand away from the spacecraft.
Researchers have discovered a way to harness hot helium ash to drive rotation in fusion reactors, reducing instabilities and turbulence. By capturing the energy of hot fusion ash via alpha channeling, plasma rotation can be stabilized, leading to improved performance and reduced operating costs.
Recent simulations using Gkeyll reveal that neutral particles significantly impact plasma density, temperature, and flow levels in the scrape-off layer region of tokamaks. The inclusion of neutrals leads to reduced plasma fluctuations and slower blob motion.
A new coil design could mitigate disruption-driven runaway electrons in tokamaks. The SPARC team's innovative coil structure addresses the threat by introducing a non-axisymmetric perturbation that spoils confinement and protects the machine.
Researchers used fusion reactors to test spacecraft heat shield materials, achieving conditions similar to those encountered during high-speed atmospheric entries. The experiments demonstrated improved accuracy in modeling heat shield behavior, offering promise for developing advanced materials necessary for future missions.
Researchers track migration of fast ions, revealing routes influenced by Alfvén waves. The observed patterns suggest a large-scale migration among different routes, with some ions escaping the core and others returning to it.
The PHAse Space MApping experiment, a complex plasma physics research project at WVU, aims to study the motion of ions and electrons in plasmas. The facility can measure three-dimensional motion at very small scales and is capable of performing detailed measurements.
New research from Shibaura Institute of Technology reveals that spark plasma sintering produces highly dense MgB2 bulks with improved mechanical and superconducting properties. The resulting samples exhibit superior strengths and high trapped field performance, making them suitable for space applications and electric machines.
The UW team's prototype reactor uses a gaming graphics card to control plasmas, achieving high-speed and precision control. This method enables the creation of longer-living plasmas that operate closer to conditions required for controlled fusion power.
Scientists have experimentally confirmed the presence of an intermediate hexatic phase in a monolayer dusty plasma system, resolving a long-standing question in theoretical physics. The research uses an unconventional approach to form a monolayer dusty system and precisely controls temperature to identify the phase transition points.
Simulations reveal that longitudinal fluctuations preferentially mix with ions, leaving electrons cooler, while transverse fluctuations can mix with both. This finding has significant implications for understanding astronomical observations of supermassive black holes.
Researchers at Princeton Plasma Physics Laboratory have developed a new model for stabilizing magnetic bubbles in plasma, which can expand and disrupt fusion reactions. By modifying the standard technique of radio frequency wave deposition, they predict that pulsing the waves can overcome leakage problems and improve performance.
The LTX-β upgrade successfully demonstrates the ability of liquid lithium to hold onto stray particles, improving plasma temperature profiles and expanding plasma volume for fusion. The device aims to test whether coating all plasma-facing walls with lithium can enhance plasma confinement and increase temperature.
Researchers at DOE/Princeton Plasma Physics Laboratory have gained new insights into the sawtooth instability, a cooling phenomenon that interferes with fusion reactions. The discovery, rooted in abstract mathematics, suggests an alternative explanation for the phenomenon when the safety factor drops to around 0.7.
Scientists at Princeton Plasma Physics Laboratory have developed a new technique to predict fusion energy performance using advanced mathematical modeling. This approach combines millisecond behavior with longer-term forecasts, enabling accurate predictions of plasma temperature profiles and heat fluxes at significantly reduced computa...
Researchers at DOE's Princeton Plasma Physics Laboratory proposed a new theory to explain sawtooth instabilities in plasma, which could lead to more efficient fusion reactions. The theory suggests that localized instabilities can flatten pressure and temperature during the sawtooth cycle, explaining rapid heat collapses.
Researchers found that hydrogen ice pellets enhance fusion temperatures and plasma pressure compared to gas injection on DIII-D. The findings are encouraging for ITER's pellet-injection fueling method, which aims to replicate the sun's fusion process.
Scientists in Japan have reached a breakthrough in controlling fusion plasma's uniformity by studying the movement of hydrogen isotopes. The research found that turbulent states, such as ion temperature gradient turbulence, result in more uniform isotope ratios, which is favorable for fusion reactions.
High-performance electric propellants have a higher enthalpy due to internal energy storage, which affects efficiency. The study predicts the material's conductivity and ionization at extreme temperatures.
Researchers at Drexel University have found a way to destroy toxic compounds, ominously dubbed 'forever chemicals,' that have contaminated the drinking water of millions across the US. The team uses a blast of charged gas, called cold plasma, to eliminate PFAS from water without heating it up.