Low Temperature Plasmas and Discharges

Garant předmětu:

Lecturer:

Tutor:

Supervisor:

Department of Laser Physics and Photonics

Synopsis:

Atomic collision phenomena; basic concepts and relations; elastic scattering; ionization and excitation; three-particle recombination. Brehmsstrahlung; radiative capture; line radiation. Processes in partially ionized gas. Gas in thermodynamic equilibrium. Ionized gas in electric field. Phenomena on electrodes.

Breakdown of gas in D.C. and A.C. electric fields. Gas discharges; V-A charakteristics. Glow discharge. Self-sustaining D.C. arc discharge. Low pressure discharge with heated cathode. Electrical probes.

Requirements:

Basics of atom physics, theory of electomagnetic field.

Syllabus of lectures:

- Atomic collision phenomena.

- Electromagnetic radiation of system of charges.

- Processes in gas with particle collisions.

- Gas in thermodynamic equilibrium.

- Ionized gas in electric field.

- Phenomena on surface of electrodes.

- Breakdown of gas in DC electric field.

- Breakdown of gas in AC field.

- Glow discharge.

- Self-sustained arc discharge.

- Low pressure arc with heated cathode.

- Electrical (Langmuir) probes for plasma diagnostics.

Syllabus of tutorials:

Study Objective:

Knowledge of processes in partially ionized gas.

Ability to understand behaviour of various discharges.

Study materials:

Obligatory

[1]- J. Král: Low temperature plasmas and discharges. Lectures in electronic form.

Optional

[2]- E.W. McDaniel: Collision Phenomena in Ionized Gases. J.Wiley & Sons, New York, 1964.

[3]- M. Mitchner, C.H. Kruger,Jr: Partially Ionized Gases. J. Wiley & Sons, New York , 1973.

[4]- A.M. Howatson: An Introduction to Gas Discharges. 2nd. edition, Pergamon Press, Oxford, 1976.

[5]- Ju.P. Rajzer: Fizika gazovovo razrjada. Nauka, Moskva, 1987. in Russion.

[6]- V.L. Granovskij: Električeskij tok v gaze, ustanovivšijsa tok. Nauka, Moskva, 1971.

[7]- J.D. Swift, M.J.R. Schwar: Electrical Probes for Plasma Diagnostics, Iliffe Books, London, 1970.

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Fyzika a technika termojaderné fúze (elective course)
• Fyzika plazmatu a termojaderné fúze (elective course)