The following lecture topics were covered in class. Notes have been posted where available. Introduction and Basic Transport Concepts
Form of Transport Equations
Random Walk Picture -- Guiding Centers
Coulomb Cross Section and Estimate
Fusion Numbers: (a) Banana Diffusion, (b) Bohm and Gyro-Bohm Diffusion
Transport Matrix Structure: (a) Onsager Symmetry
Diffusion Equation Solutions and Scaling
Initial Value Problem
Steady State Heating Problem (temperature) w/ Power Source
Density Behavior: (a) Include Pinch Effect
Magnetic Field Diffusion
Velocity Space Diffusion: (a) Relaxation Behavior w/o Friction, (b) Need for Friction in Equilibration
Coulomb Collision Operator Derivation
Coulomb Collision Operator Derivation II
Calculation of Fokker-Planck Coefficients
Debye Cutoff: (a) Balescu-Lenard form and (b) Completely Convergent Form
Collision Operator Properties: (a) Conservation Laws, (b) Positivity, (c) H-Theorem
Coulomb Collision Operator Derivation III
Electron-ion Lorentz Operator
Energy Equilibration Terms
Electrical Conductivity - The Spitzer-Harm Problem: (a) Example of Transport Theory Calculation
Runaway Electrons
Classical (collisional) Transport in Magnetized Plasma
Moment Equations
Expansion About Local Thermal Equilibrium (Electron Transport)
Linear Force/Flux Relations
Transport Coefficients: Dissipative and Non-dissipative Terms
Physical Picture of Non-dissipative Terms: (a) "Diamagnetic" Flow Terminology and Physics from Pressure Balance and Show that Bin < Bout, (b) "Magnetization" Flow Terminology from FLR, J=Curl M
Physical Picture of Dissipative Flows: (a) Guiding Center Scattering, (b) Random Walk
Classical Transport in Guiding Center Picture
Alternate formulation displays microscopic physics more clearly (needs Gyrofrequency >> Collision Frequency)
Follows Hierarchy of Relaxation Processes - "Collisionless Relaxation"
Transformation to Guiding Center Variables: (a) Physical Interpretation
Gyro-averaged Kinetic Equation IS Drift Kinetic Equation
Gyro-averaged Collision Operator: Spatial KINETIC Diffusion of Guiding Center
Transport Theory Ordering
Classical Transport in Guiding Center Picture II
Expansion of Distribution Function and Kinetic Equation: (a) Maximal Ordering (Math and Physics)
Zero Order Distribution - Local Maxwellian
1st order - Generalized Spitzer problem: (a) Inversion of (Velocity Space) (b) Collision Operator, (c)Integrability Conditions and Identification of Thermodynamic Forces
2nd order - Transport Equations: (a) Integrability Conditions Yield Transport Equations, (c) Complete Specification of Zero Order f
Transport Coefficient Evaluations: (a) Equivalence to Prior Results
Physical Picture of Flows: (a) Guiding Center Flows and "Magnetization" Flows
Random (Stochastic) Processes, Fluctuation, etc. (Intro.)
Probability and Random Variables
Ensemble Averages
Stochastic Processes: (a) Fluctuating Electric Fields, (b) Correlation Functions, (c) Stationary Random Process
Integrated Stochastic Process - Diffusion: (a) Example of Integral of Electric Field Fluctuations giving Velocity Diffusion, (b) Integrated Diffusion Process
Distribution Function of Fluctuations
Fluctuation Spectra – Representation of Fields
Fourier Representation of Random Variable: (a) Mapping of "All Curves" to Set of All Fourier Coefficients, (b) Fourier Spectral Properties for Stationary Process, (c) Equivalence of "Random Phase Approximation"
Physical Interpretation in Terms of Waves
Definition of Spectrum as FT of Correlation Function
Generalize to Space & Time Dependent Fields: (a) Statistical "Homogeneity"
Continuum Limit Rules
Diffusion Coefficient from Fluctuation Spectrum
Stochastic Process Evaluation of Particle Velocity Diffusion Coefficient from Homogeneous, Stationary Electric Field Fluctuation Spectrum
Physical Interpretation via Resonant Waves
Superposition of Dressed Test Particles - Field Fluctuations
Diffusion (Tensor) from Discreteness Fluctuations - Collision Operator
Correlation Time Estimates
Turbulent Transport – Drift Waves
Space Diffusion of Guiding Center from Potential Fluctuations and ExB Drift
Estimates and Scalings from Drift Wave Characteristics: (a) Bohm scaling, (b) Gyro-Bohm Scaling from Realistic Saturated Turbulence Level
Coulomb Collision Operator Properties
Full Classical Transport in Magnetized Plasma Cylinder
Includes Ion and Impurity Transport
Estimates and Orderings for Electron and Ion Processes
Ambipolarity and Two "Mantra" of Classical Transport: (a) "Like Particle Collisions Produce no Particle Flux", (b) "Collisional Transport is Intrinsically Ambipolar", (c) Microscopic Proof of Mantra for Binary Collisions
Moment Equation Expressions for Perpendicular Flows: (a) Flux-Friction Relations, (b) Leading Order Approximations
Particle Flux Relations
Non-Ambipolar Fluxes, Viscosity, Plasma Rotation: (a) Limits to Mantra, Calculation of Ambipolar Field, (b) Impurity Transport, and Steady State Profiles
Fast ion Collisions, Alpha Slowing Down and Fusion Alpha Distribution
Like-Particle Collisional Transport
Ion Thermal Conduction Calculation
Guiding Center Picture Calculation
Heat Flux - Heat Friction Relation
Neoclassical Transport
Introductory concepts: (a) Particle orbits and Magnetic Geometry, (b) Particle Mean Flux Surface, Moments, Flows and Currents
Tokamak Orbit Properties: (a) Trapped Particle Fraction, (b) Bounce Time (Circulation Time)
Bounce Averages
Tokamak Moments and Flux-Surface averages: (a) Constant of Motion variables, (b) Moments @ Fixed Space Position, (c) Flux-Surface Averaged Moments, (d) Bootstrap Current (Magnetization Piece)
Moment Relations and Definitions
Bounce Average Kinetic Equation Derivation
Perturbation Theory for The "Banana" Regime
Banana Regime Transport Theory: (a) Particle Moment, (b) Energy Moment, (c) Toroidal Current, (d) Transport Coefficient Formalism
Structure of the Transport Matrix: (a) Onsager Symmetry
Evaluation of Neoclassical Transport
Analytic Details of Thermal Conduction Calculation Including Complete Expression
Ware Pinch Effect
Magnetization Bootstrap Current
Simplified Implicit Transport Coefficient
Diagonal Transport Coefficients
Onsager Symmetry of Transport Coefficients