Investigations of transport in the scrape-off layer of a tokamak

In the first chapters of thesis I am going to show the importance of research of civil use of fusion energy. Then I will give a short introduction in fusion physics and plasma physics, because the method of fusion used here (Tokamak) is based on plasma physics. After that I am going to present a more detailed picture of a state of the art tokamak and its heating systems. Different confinement modes (low confinement mode and high confinement mode - H-mode and L-Mode) will also be explained. And the most important instability in the high confinement mode (the Edge Localize modes or ELMs) will be discussed. Later on I will give an introduction to plasma diagnostics and probe physics. After this general part I will show details on our measurement system and explain the physics and abilities of our probe head. And show how it can survive temperatures up to several tens or hundreds of thousands degrees. In the next chapters some more direct measurements (like density and poloidal rotation measurements) will be presented. After this the radial transport of poloidal momentum will be defined and will be shown and discussed in detail during different operational modes (L-modes and H-modes) and time intervals (ELM and inter ELM intervals). Various statistical methods (like PDF generation, classical and robust statistical moments) will be applied on the momentum transport. In the end the given results will be interpreted and an outlook for further experiments will be given. (author)