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Title: Physics/Plasma - MATLAB Instruction Modules for Introductory Plasma Physics Modules to teach single particle motion, dispersion relation, particle simulation and ray-tracing.
NRL_Plasma_Formulary Revised Edition. The NRL Plasma Formulary has been the handbook of plasma physicists for the past 20 years. It is available in PostScript, PDF, and TeX formats.

Plasma_Dictionary All terms and definitions presented in alphabetical order.

Plasma_Everywhere Introduction on plasmas from NASA. Plasmosphere surrounding our world.

Plasma_on_the_Internet Plasma-gate. Lists of Plasma Physics servers on the internet. (From WIS Institute).

Plasma_Physics_and_Nuclear_Fusion_Experiments List of web sites describing experiments world-wide to study the physics of nuclear fusion by magnetic confinement.

Plasma_Physics_Research_Center Plasma Physics Research Center Tehran-Iran


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MATLAB modules for introductory plasma physics Study online   create_menu(0) Javascript is required to navigate around our website; to visulalize only the syllabus, check the table of content. back up next contents bibliography MATLAB modules for introductory plasma physics

Introduction to Plasma Physics with Applications

Educational material by Andre Jaun (KTH/Stockholm) and Anders Bondeson (CTH/Gothenburg).Even if the phenomena described in an introductory undergraduate plasmaphysics course are in principle simple, teaching the subject quickly leads to the use of rather heavy mathematics. Indeed, plasma physics combines electromagnetics, mechanics and fluid dynamics, which are generally considered difficult subjects. Students are nowadays highly computerliterate, at the expense however of old fashioned skills in analytical theory. Rather than reducing the scope of the material presented, these modules aim at using their new strengths; in fact, this makes it possible to take the physical descriptions to a higher degree of realism while alsofamiliarizing the students with the limitations intrinsic to numericalmethods. Single particle motion in electric and magnetic fields (SPM)Sample outputPurpose. This application integrates the ordinary differentialequations of motion (Newton's equation) for a charged particle in prescribedelectric and magnetic fields (resulting in a Lorentz force modifying thetrajectory). Relying on a powerful user interface from Matlab with buttonsand sliders, the script is written so as to make it easy for the student to prescribe any field configuration and plot the resulting particle trajectory.A number of configurations of practical interest are already preset, suchas constant, dipole and toroidal magnetic fields with or without rotationaltransform. In the simple cases, the student can for example directly observe and measure the Larmor radius, ExB, Grad(B), the curvature and the polarization drifts. More complicated examples illustrate the principle of magnetic confinement in a tokamak and show how charged particles get trapped in the earth's magnetic field.Code. In Matlab command language (version 5.2-7.0), including the graphics interface spm.m (271 lines), the equations of motioneqMotion.m (119 lines) and the input data data.m (23 lines). The application has been tested 1998-2001 in the classroom: here is an example showing the trajectory of a fast electron trapped in the dipole field of the earth and viewed from the equator.Distribution. Register to immediately download the source file(s) and pay a small fee (USD 29.00) using a secured paypal credit-card payment. Dispersion relation of a cold plasma (DSPRL)Sample outputPurpose.The propagation of electromagnetic waves is an importantand very rich subject in plasma physics.  Applications include many diverse subjects such as reflection of light by a mirror, the propagationof perturbations in the ionosphere or interstellar space, interferometry,and heating schemes used in fusion devices. In a straightforward, but veryuseful approximation, the entire subject can be studied starting from thesame quadratic dispersion relation for an index of refraction.  This is very tedious to solve analytically, but extremely easy to handle numerically in Matlab, for example, for a varying frequency or inhomogeneous plasma parameters. A number of scenarii of physical interest are already preset, such as short waves in the ionosphere, waves in the upper and lower hybrid range, ion-ion mode conversion current drive and fast or Alfven wave heating in tokamaks. The wave branches can directly be plotted and the input parameters modified, prescribing the profiles in an interactive command window and changing parameter with a slider. Code. In Matlab command language (version 5.2-7) for the entire script dsprl.m (593 lines). The application has been tested 1999-2001 in the classroom: here is an example of the wavelengths calculated for a DIII-D tokamak ion-ion hybrid heating scenario.Distribution.Register to immediately download the source file(s) and pay a small fee (USD 29.00) using a secured paypal credit-card payment. Particle in cell simulation (PIC)Sample outputPurpose.A self-consistent evolution of the Newton-Poisson equations is computed in 1D using the particle-in-cell method. Applications include non-linear plasma oscillations, the instability of counter-propagating electron beams in a periodic plasma and the behaviour of a Bohm sheath in a radio-frequency heated bounded plasma device.  The plasma evolution is diagnosed by selecting plots for the phase-space,the charge density, the electric field / potential in configuration orFourier space. Code. In Matlab command language (version 5.2-7.0) for the entire script pic.m (690 lines) and a small driver for quiet start initialization revers.m. The application has been tested 2000-2001 in the classroom: here is an example of a calculation showing the formationof a Bohm sheath in an industrial plasma used for ion-implantation.Distribution. Register to immediately download the source file(s) and pay a small fee (USD 29.00) using a secured paypal credit-card payment. Ray-tracing in a tokamak (RAY)Sample outputPurpose.Currently under development in collaboration with A.Kaufman (UC Berkeley) and E.Tracy (William & Mary), the code solves for the trajectories of electromagnetic waves assimilated to rays in toroidal geometry. Applications include the radio-frequency heating and current drive in fusion energy devices.  This set of modules may be useful at a graduate level to familiarize the students with the toroidal geometry of tokamaks.Code. In Matlab command language (version 5.2-7.0) for the entire script.This application has not been tested yet for teaching purposes: here is an example of a pencil of magnetosonic rays reflected at the evanescent layer in front of the ion-ion hybrid resonance.Distribution. The code is under development to tackle mode-conversion in 2D and is not at present openly distributed. You may however inquire about a possible collaboration by contacting André Jaun. Our experience in the classroom (CTH/Gothenburg, Sweden).For all these projects, it is the initial educational motivation that led to the analytic formulation and the design of an application; this ensures that all the functionalities are really useful and what is needed is also available.The choice of the Matlab command language is motivated by the simplicity of the language which is also very familiar to the engineering students in Sweden. Advanced functions in the programming environment considerably reduced the development time for the graphical user interface. Because of the large number of preset cases, debugging and testing the scripts were particularly important.Certainly, the Matlab programmes have simplified teaching an otherwisedifficult subject.  One big advantage is that many principles canbe very concretely illustrated.  We have been able to cut down onalgebra, which has made it possible to focus more on applications and thisis appreciated by the students.       back up next contents bibliography Copyright © Lifelong-learners at 18:42:29, December 02nd, 2008
 

Modules

to

teach

single

particle

motion,

dispersion

relation,

particle

simulation

and

ray-tracing.

http://www.lifelong-learners.com/pla/

MATLAB Instruction Modules for Introductory Plasma Physics 2008 December

dvd rental

dvd


Modules to teach single particle motion, dispersion relation, particle simulation and ray-tracing.

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