| Individual course details | ||||||||||
| Study programme | Theoretical and experimental physics | |||||||||
| Chosen research area (module) | Graduated physicist for theoretical and experimental physics | |||||||||
| Nature and level of studies | Academic studies of first degree | |||||||||
| Name of the course | Physics of ionized gases | |||||||||
| Professor (lectures) | Srdjan Bukvic | |||||||||
| Professor/associate (examples/practical) | Milos Skocic | |||||||||
| Professor/associate (additional) | ||||||||||
| ECTS | 6 | Status (required/elective) | elective | |||||||
| Access requirements | Atomic Physics | |||||||||
| Aims of the course | Getting to know basic ideas of switching gas from dielectric to conductive state. Study of the most important gas breakdown models and experimental techniques for their realization. | |||||||||
| Learning outcomes | Upon completion of the course students are trained for independent laboratory work, development of diagnostic methods and models of interest in physics of ionized gases. | |||||||||
| Contents of the course | ||||||||||
| Lectures | Cross-sections for collisions, rate coefficients, transport cross-sections. Drift and diffusion of electrons and ions. Einstein's formula, ambipolar diffusion. Townsend's breakdown model. Breakdown condition. Secondary electron emission. Selfsustained discharges, glow discharge. Cathode fall region and positive column. Arc discharge. Pulsed discharges. Basic diagnostic methods. Spectroscopic diagnostic methods for continuous and pulsed discharge. Optically thin plasma. Profiles of spectral lines. | |||||||||
| Examples/ practical classes | Elastic and non-elastic collisions of electrons with inert gas atoms. Breakdown. Dependence of the breakdown potential on the product of the gas pressure and the gap length, V= f( pd ). Spectrum of the emmision from the cathod region and positive column. Spectroscopic determination of electron temperature and density. Determination of electron temperature by Langmuire's probe. | |||||||||
| Recommended books | ||||||||||
| 1 | Y.P. Raizer, Gas Discharge phisics, Springer 1991. | |||||||||
| 2 | J.A.M. van der MULLEN, EXCITATION EQUILIBRIA IN PLASMAS; A CLASSIFICATION, North-Holland 1989. | |||||||||
| 3 | ||||||||||
| 4 | ||||||||||
| 5 | ||||||||||
| Number of classes (weekly) | ||||||||||
| Lectures | Examples&practicals | Student project | Additional | |||||||
| 2 | 3 | |||||||||
| Teaching and learning methods | Lectures, experimental exercises, seminar. | |||||||||
| Assessment (maximal 100) | ||||||||||
| assesed coursework | mark | examination | mark | |||||||
| coursework | 5 | written examination | ||||||||
| practicals | 15 | oral examination | 65 | |||||||
| papers | ||||||||||
| presentations | 15 | |||||||||