Plasma diagnostic techniques comprise experimental methods used to determine fundamental plasma parameters such as electron density and temperature, ion composition, electric and magnetic fields, and turbulence characteristics. They include invasive probes (e.g., Langmuir, emissive, and Mach probes), electromagnetic wave-based diagnostics (microwave interferometry, reflectometry), spectroscopic methods (optical emission, laser-induced fluorescence, Thomson scattering), and particle-based diagnostics (mass spectrometry, energy analyzers). These techniques rely on well-defined interaction mechanisms between fields, radiation, or particles and the plasma, and are critical for validating plasma theory, benchmarking numerical simulations, and controlling laboratory, fusion, space, and industrial plasma systems.
In physics, the term "isotropy" means a system where the properties are the same in all directions. For fusion, neutron energy isotropy is an important measurement that analyzes the streams of neutrons coming from the device ...
Plasma Physics
Feb 3, 2025
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In a recent study published in Nature Communications, scientists at the Department of Microbiology, Tumor and Cell Biology at Karolinska Institutet, in collaboration with Michigan State University, have introduced an innovative ...
Bio & Medicine
Nov 8, 2024
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75
In fusion experiments, understanding the behavior of the plasma, especially the ion temperature and rotation velocity, is essential. These two parameters play a critical role in the stability and performance of the plasma, ...
Plasma Physics
Oct 8, 2024
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In a published in the journal npj Computational Materials, Oak Ridge National Laboratory scientists developed a deep learning model—a type of artificial intelligence that mimics human brain function—to analyze high-speed ...
Plasma Physics
Sep 16, 2024
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41
Laser-plasma accelerators take up less space than conventional facilities, which are sometimes kilometers long. Such compact particle sources can accelerate electron bunches efficiently, enabling X-ray lasers that fit in ...
Optics & Photonics
Aug 30, 2024
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161
Whether between galaxies or within doughnut-shaped fusion devices known as tokamaks, the electrically charged fourth state of matter known as plasma regularly encounters powerful magnetic fields, changing shape and sloshing ...
Plasma Physics
Aug 27, 2024
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High-temperature fusion plasma experiments conducted in the Large Helical Device (LHD) of the National Institute for Fusion Science (NIFS), have renewed the world record for an acquired data amount, 0.92 terabytes (TB) per ...
Plasma Physics
Jun 14, 2024
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353
Creating heat from fusion reactions requires carefully manipulating the properties of plasma, the electrically charged fourth state of matter that makes up 99% of the visible universe.
Plasma Physics
Apr 30, 2024
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164
Scientists at Nanyang Technological University, Singapore (NTU Singapore), have developed a coin-sized chip that can directly isolate blood plasma from a tube of blood in just 30 minutes, which is more convenient and user-friendly ...
Bio & Medicine
Mar 21, 2024
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101
An interdisciplinary team of researchers at the University of Antwerp (Belgium) successfully conducted in-situ studies with a plasma generated inside a scanning electron microscope (SEM). This marks the first time live SEM ...
Plasma Physics
Feb 28, 2024
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