A model of drift waves modified by electron temperature gradients and E×B rotation in cylindrical magnetized plasma

Dissertant

Ubayd, Muin F.

Thesis advisor

Shabat, Muhammad Musa
Yasin, S. S.

University

Islamic University

Faculty

Faculty of Science

Department

Department of Physics

University Country

Palestine (Gaza Strip)

Degree

Master

Degree Date

2002

English Abstract

A general investigation of linear drift-waves phenomena in cylindrically bounded plasmas, immersed in a magnetic field without sheared and curvature, is described by the two-fluid equations, taking into account: (a) electron-temperature oscillation, (b)the radial variation of density and temperature, (c)the radial electric field E ; and E B rotation, as well as (d)the electron motion parallel to the magnetic field lines.

For plasmas in which the electron temperature strongly exceeds the ion temperature the problem is reduced to an ordinary complex secondorder differential equation describes the radial distribution of the oscillating electric potential.

It is shown that the presence of the E Brotation and the radial gradients in the undisturbed electron temperature leads to an important modification of the theory of drift waves in cylindrical plasma compared with previous models in which these phenomena were disregarded.

The theory is applied to an experimental data of helium plasma using Runge-Kutta integration method.

Our calculation shows that the temperature variation and the E B rotation are important in the predictions of drift wave frequency and radial position of the maximum wave amplitude.

Main Subjects

Physics

No. of Pages

49

Table of Contents

• APA
• MLA
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Language

English

Data Type

Arab Theses

Record ID

BIM-303352