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Showing 1 to 20 of 49 for “"magnetic confinement"”.
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The solar tachocline: a self-consistent model of magnetic confinement
… particular focus on angular momentum balance and magnetic field confinement within the tachocline. In Part I we review current knowledge of the Sun's rotation. We summarise the main mechanisms by which angular momentum is transported within the Sun, and discuss the difficulties in reconciling the …
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Techno-economic Analysis of Deuterium-Tritium Magnetic Confinement Fusion Power Plants
… techno-economic analysis of Deuterium-Tritium Magnetic Confinement Fusion Power Plants (FPP), tailored to enhance the economic viability and scalability of FPPs in response to global energy challenges and climate change. Amidst a backdrop of substantial investments in fusion technology, …
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An Analysis of p-6Li as Fuel in Magnetic Confinement Fusion Reactors
Made available in DSpace on 2017-07-06T18:58:58Z (GMT). No. of bitstreams: 3 Stroud_Phillip_D_MS.pdf: 32435627 bytes, checksum: b54b75e4edd9a6c0297a78ecc64fb5ad (MD5) Stroud_Phillip_D_MS_ABS.pdf: 457047 bytes, checksum: 60281b82e7c029d497f292a94bd9209f (MD5) license.txt: 4813 bytes, checksum: …
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External proton beam analysis of plasma facing materials for magnetic confinement fusion applications
A 1.7MV tandem accelerator was reconstructed and refurbished for this thesis and for surface science applications at the Cambridge laboratory for accelerator study of surfaces (CLASS). At CLASS, an external proton beam set-up was designed and constructed to perform in-air ion beam analysis on …
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Plasma and neutral gas jet interactions in the exhaust of a magnetic confinement system
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1990.
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USING COMPUTATIONAL METHODS TO OPTIMIZE HIGH HEAT FLUX COMPONENT THERMAL PERFORMANCE IN MAGNETIC CONFINEMENT FUSION REACTOR RESEARCH
<p>"Heat transfer enhancement by means of internally modified geometries in tubes and channels is an important mechanism to improve the survivability of components in extreme high-heat flux environments. Various features such as ribs and fins are studied using computational fluid dynamics in both …
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Cyclotron Radiation by a Multi-Group Method
… energy loss mechanism in fusion reactors using magnetic confinement. It plays an important role in the energy-balance of the whole reactor system.
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Strategies and systems for modelling, real-time control and data acquisition in magnetic confinement fusion [Strategie e sistemi per la modellazione, il controllo e l'acquisizione dati in real-time nella fusione a confinamento magnetico]
… per esperimenti di fusione a confinamento magnetico, con particolare attenzione al miglioramento dell'affidabilità e della reattività della regolazione del plasma nei dispositivi Tokamak. Il lavoro collega la modellazione teorica, l'implementazione di sistemi embedded e l'apprendimento …
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Fluctuation induced cross-field transport in Hall thrusters and tokamaks
… understood is the transport of particles across magnetic field lines at rates significantly higher than predicted by theory exclusively based on collisions. This "anomalous" transport is observed in many different classes of plasma experiment. Notably, both magnetic confinement fusion devices and …
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Production of uniform micropellets of hydrogen and hydrogen pellet injection on ORMAK
… for refueling fusion reactors based on the magnetic confinement of a plasma. An experimental study was undertaken to determine the interaction of a hydrogen pellet with a high temperature plasma. An apparatus was developed which produced 70 micrometer diameter droplets of hydrogen by the …
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An Analytical Model for Fusion First-Wall Temperature Calculations (Conduction)
… applicable to the steady-state operation of magnetic confinement devices such as tokamaks.
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Alcator C-Mod soft X-ray pulse height analysis system
… system has been installed on the Alcator C-Mod magnetic confinement fusion experiment. The PHA utilizes a Si(Li) detector to measure soft X-rays in the 1-30 keV range with an energy resolution on the order of 100eV. A FASTComtec MCA-3 multichannel analyzer allows integration times of ims while …
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Combined analytical and numerical solutions in liquid metal flows in a rectangular duct with uniform or non-uniform, strong magnetic fields
… flows in self-cooled liquid-lithium blankets for magnetic-confinement fusion reactors, liquid metal flows in rectangular ducts with thin conducting walls have been treated by combining analytical methods and numerical solutions. An asymptotic method has been used in the linear stability analysis …
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An analysis of energy balance in a helicon plasma source for space propulsion
… radiation emission, wall losses due to poor magnetic confinement, and poor antenna-plasma coupling. This work sought to establish a first-order breakdown of the loss mechanisms in the mHTX@MIT helicon source so as to allow for a better understanding of the issues effecting efficiency. This …
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Improving particle confinement in inertial electrostatic fusion for spacecraft power and propulsion
… (Tokamak based reactors like ITER and inertial confinement reactors like NIF) require very large and heavy structures for power supplies and magnets, in the case of magnetic confinement, or capacitors and lasers in the case of inertial confinement. The mass of these reactors and support …
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Fast photodiode diagnostic on Alcator C-Mod tokamak to study the plasma edge/SOL structure
The tokamak is so far the most promising magnetic confinement configuration to control fusion scale plasmas and to be a large scale source of electricity in the future. Built in the shape of a torus of major and minor radius R and r respectively, the charged particles are confined by the …
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A Nickel Short: Rethinking Element Scarcity in Pursuit of a Fusion-Powered World
… global deployment of fusion power. Using the ARC Magnetic Confinement (MC) Deuterium-Tritium (D-T) fusion concept as a framework, this research integrates mineral usage estimates from the International Energy Agency (IEA) with MIT Energy Initiative’s (MITEI) energy production forecasts by …
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Particles methods for kinetic equations in plasma physics, collective behaviors and optimization.
… we will focus on a particular problem related to magnetic confinement in Plasma Physics. We will introduce an optimal control problem and discretize it by means of a particular particle scheme. In Chapter 3 we will formulate a follower-leader kinetic model to simulate the collective motion of …
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Deterministic chaos in Alcator C-Mod edge turbulence
… the underlying dynamics of turbulence in magnetic confinement fusion experiments is extremely important. Turbulence greatly reduces the confinement time of these devices and therefore greater knowledge of turbulent dynamics can help with its mitigation. Experiments from the Alcator C-Mod …
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Theoretical and experimental investigation of Hall thruster miniaturization
… performance including ionization, electron confinement and recombination losses. These scaling laws were applied to the design of a 9mm diameter, nominally 200W thruster based on the Russian D-55 anode layer Hall thruster. The Miniature Hall Thruster (MHT-9) design was further refined using …
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