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Showing 1 to 11 of 11 for “"Plasma chamber"”.
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Characterization of a Magnetically Contained Hot Filament Plasma Source with a Wide-Sweeping Langmuir Probe
<p>Ionospheric plasma research in the Space and Atmospheric Instrumentation Laboratory’s Space Plasma Chamber has been hindered by the lack of a suitable plasma diagnostic instrument and understanding of its hot-filament plasma source. This thesis describes efforts made to remedy both problems. A …
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Studies of plasma potential measurements using an ion-sensistive probe
The plasma potential of the scrape-off-layer (SOL) in the tokamak is a key indicator of the erosion rate of the plasma facing component (PFC) material. The Alcator C-Mod SOL plasma potential is currently measured by emissive probes, which is an established potential diagnostic, yet the probes are …
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Plasma characterisation of an electron cyclotron resonance ion source by means of x-ray spectroscopy
… continuum emitted by the mirror confined plasma of an ECR ion source. The focus of our study was to investigate the influence of neutral pressure, incident microwave power and magnetic field configuration on spectral temperature and electron density of the warm electron population of the …
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Additively Manufactured, Multi-Langmuir Probe Plasma Sensing Device for Use on CubeSats
… probe (LP) sensor array for CubeSat ionospheric plasma diagnostics. The ionosphere is a critical layer of Earth's atmosphere consisting entirely of plasma, and reliable in-situ measurements made on satellites orbiting within the ionosphere are necessary for better understanding its properties. …
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Grafeno ant skandžio oksido fotolitografija /
… the monolayer was dry etched inside an oxygen plasma chamber to form a graphene microstructure. Another photoresist mask was formed so that a nickel-gold metal layer could be deposited on the surface. After the lift-off of the unnecessary leftover metal layer, the complete microstructure could …
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The gridded electromagnet probe
… the electron distribution function in magnetized plasma by exploiting the adiabatic invariance of the electron's magnetic moment with a probe comprising a grid, a collector, and an inertially cooled electromagnet. The electric mirror force of the grid, which is located at the electromagnet throat, …
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Langmuir Probe Instrument Suite for Mesosphere Turbulence Experiment Mission
… probe technique is the predominant in-situ plasma diagnostic technique, and is arguably the only measurement technique that is universally own on every sounding rocket investigation. Earth's mesosphere region (80-120 km) is a host of many dynamic phenomena such as the noctilucent clouds, …
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Micro-patterned plasma and ultra-violet ozone modification of polymer surfaces.
… and Nunclon TM polystyrene (PS) dishes by; (i) plasma deposition/modification of n-Hexane, isopropyl alcohol (IPA) and acetone, and (ii) an Ultra-Violet/Ozone (UV/Ozone) oxidation treatment have been investigated as methods of influencing cell attachment behaviour. In particular, the effects of …
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Evolution of the distribution of high energy nuclei and induced collective modes in plasmas
Recent experiments in plasmas undergoing fusion have shown evidence of novel processes which are correlated with the onset of fusion reactions. In view of such evidence and observed effects of the injection of high energy neutral beams in laboratory plasmas, as well as the existence of …
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Dynamic interactions between energetic D and He ions on lithium-tungsten plasma-facing interfaces
… of highly-dense high-temperature fusion plasmas, a considerably higher demand is placed on the plasma facing components (PFCs) with an increase of fusion power production. Currently within operating experimental reactors, the PFCs need to handle only a few MW/m$^2$ of heat flux and …
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Intense pulsed neutron generation based on the principle of Plasma Immersion Ion Implantation (PI3) technique
… neutron generator based on the principle of the Plasma Immersion Ion Implantation (PI3) technique is presented, in terms of investigating development of a compact system to generate an ultra short burst of mono-energetic neutrons (of order 1010 per second) during a short period of time (< 20μs) …