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Showing 1 to 20 of 102 for “"Tokamaks"”.
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Axisymmetric control in tokamaks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1991.
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Theoretical transport model for tokamaks
… equilibrium toroidal magnetic flux surfaces in tokamaks. The model suggests a linear combination of two transport mechanisms; drift waves, which dominate the transport in the core region, and resistive ballooning modes, which dominate the transport in the edge region. The resulting unified model …
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Mathematical Modeling Plasma Transport in Tokamaks
… to account for anomalous plasma transport in tokamaks. A Bayesian parameter estimation method is used including experimental calibration error/model offsets and error bar rescaling factors to determine the two uncertain constants in the transport model with quantitative confidence level …
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Magnetic flux reconstruction methods for shaped tokamaks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1994.
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Equilibrium and stability studies of strongly shaped Tokamaks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1988.
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Fusion-Product Transport in Axisymmetric Tokamaks: Losses and Thermalization
High-energy fusion-product losses from an axisymmetric tokamak plasma are studied. Prompt-escape loss fluxes (i.e. prior to slowing down) are calculated including the non-separable dependence of flux as a function of poloidal angle and local angle-of-incidence at the first wall. The flux is …
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Methods for the design and optimization of shaped Tokamaks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1988.
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A levelized comparison of pulsed and steady-state tokamaks
… however, the most important decision for tokamaks is whether to run them as pulsed or steady-state. This paper aims to fairly compare the two modes of operation using a single, comprehensive model. Benchmarked against other codes, this model actually shows that no fusion reactor is …
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ARC-class tokamaks: Preliminary design, system modeling and safety assessment
L'abstract è presente nell'allegato / the abstract is in the attachment
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Stability of High Beta Tokamaks With Respect to Pellet Injection
Made available in DSpace on 2017-07-06T18:59:06Z (GMT). No. of bitstreams: 3 Tetley_William_C_MS.pdf: 15679596 bytes, checksum: f21385c74b574528f13dec9734ba4b83 (MD5) Tetley_William_C_MS_ABS.pdf: 423208 bytes, checksum: 3b4a5852bf7abb6c89dbf3ba93877db7 (MD5) license.txt: 4813 bytes, checksum: …
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Fluctuation induced cross-field transport in Hall thrusters and tokamaks
… magnetic confinement fusion experiments, such as tokamaks, the Lawson criterion nT[tau]E >/= 10²¹ [keV. s. M- ³] dictates that the reactant particles in a fusion plasma must be confined for a sufficient time to fuse. Higher than predicted cross-field transport decreases the effectiveness of the …
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Economic evaluation of fissile fuel production using resistive magnet tokamaks
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1985.
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A Multi-Region Multi-Timescale Burning Plasma Dynamics Model for Tokamaks
Controlled thermonuclear fusion in tokamaks brings forth demands for burning plasma dynamics research. The deuterium-tritium fusion generates energetic alpha particles, which first transfer their energy to core electrons. The heated electrons and remaining fusion alpha particles then heat core ions …
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Beam-Ion Transport in Tokamaks: Thermalization in Large Orbit-Width Regime
"Comparison with the present results shows that the small orbit-width approximation introduces $\ge$5% errors in the density, parallel momentum, and energy moments when $\rho\sb{\theta}/L = 0.86$ in low-$Z\sb{\rm eff}$ plasmas. These results are observed for all source pitch-angles studied except …
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Nonlinear gyrokinetic simulations of intrinsic rotation in up-down asymmetric tokamaks
… asymmetry in the poloidal crosssection of tokamaks can drive intrinsic rotation to lowest order in [pi]*, [1, 2]. In this thesis, we extend GS2, a local [delta] f gyrokinetic code that self-consistently calculates momentum transport, to permit up-down asymmetric configurations. MHD analysis …
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Global modeling of non-axisymmetric disruptions and halos currents in tokamaks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1997.
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Investigation of Multi-Z Impurity Transport in Tokamaks using Neural Networks
… electron particle, and impurity transport in tokamaks.
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