Erste Charakterisierung eines nichtneutralen Plasmas bei toroidalem Magnetfeldeinschluss

  • Gabor lenses were invented for focusing hadron beams by the electric field of a confined electron column. A homogenous magnetic field created by a solenoid confines electrons in transverse direction while a potential well created by a cylindrical electrode system confines them longitudinally. In this thesis the investigation and characterization of a nonneutral electron plasma (NNP) in a Gabor lens with a toroidal magnetic confinement and a 30 degree-bent anode is presented. Motivated by fundamental research on NNPs in this special environment, diagnostic methods were investigated to characterize the plasma. As a non-invasive method a PCO camera is placed in front of the experimental setup. A ring of 31 photodiodes is used inside the plasma for light intensity and distribution measurements. The experimental data is evaluated and the following results will be presented.

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Author:Katrin Isabell Thoma
Place of publication:Frankfurt am Main
Referee:Holger PodlechORCiDGND, Kathrin Schulte
Document Type:Master's Thesis
Date of Publication (online):2018/04/10
Year of first Publication:2017
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Granting Institution:Johann Wolfgang Goethe-Universität
Date of final exam:2017/12/07
Release Date:2018/04/19
Tag:Elektronenwolke; Gabor-Linse
Page Number:82
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht