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Inbetriebnahme und Untersuchung des Verhaltens einer Elektronenkanone mit optischem Zugang zur Strahlachse

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Kühn,  Steffen
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Citation

Kühn, S. (2014). Inbetriebnahme und Untersuchung des Verhaltens einer Elektronenkanone mit optischem Zugang zur Strahlachse. Bachelor Thesis, Ruprecht-Karls-Universität, Heidelberg.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002E-5840-1
Abstract
In this bachelorthesis a novel Off-Axis-Electrongun was put into operation for the first time and the characteristics of its electron beam were analyzed. Such a gun is needed to allow optical access for the direction of a photon beam along the axis of the electron beam in the Electron Beam Ion Trap (EBIT). An external photon beam can be used for precise excitation and ionisation processes in the EBIT as well as for further experiments after the beam has left the EBIT. A new mount for the gun was developed, which allows for reproducable adjustments of the position of the gun to be made. To extend the lifetime of the cathode, the new mount setup has a vacuum chamber in which the gun can be isolated from the chamber of the EBIT.