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Aufbau und Test eines Vibrationssensors für das ALPHATRAP Projekt


Erlewein,  Stefan
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Erlewein, S. (2014). Aufbau und Test eines Vibrationssensors für das ALPHATRAP Projekt. Bachelor Thesis, Ruprecht-Karls-Universität, Heidelberg.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-0562-6
Currently the high-precision Penning-trap experiment ALPHATRAP is set up at the Max-Planck-Institut für Kernphysik, which will allow measuring the g-factor of the bound electron in highly charged ions. In a precurser experiment at Mainz ground vibrations have shown to have a negative influence on the achievable precision. In order to decouple ALPHATRAP from ground vibrations an active compensation using piezoelements is to be installed. In the course of this work a system has been set up that allows direct measurement of the ground movement. A pendulum with a low resonance frequency acts as a resting reference point relative to which the movement of the ground can be measured. A capacitive distance sensor which has been built in the course of this work is used to measure the position. The sensitivity of the prototype was determined and compared to commercial sensors.