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Thesis

Electromagnetic Properties of the Proof of Principle Booster Setup for the MADMAX Experiment

MPS-Authors

Egge,  Jacob
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Egge, J. (2018). Electromagnetic Properties of the Proof of Principle Booster Setup for the MADMAX Experiment. Master Thesis, TU München, München.


Cite as: https://hdl.handle.net/21.11116/0000-0003-F98F-4
Abstract
The MADMAX experiment is a novel approach to search for axion dark matter in
the range from 40 μeV to 400 μeV. A booster consisting of dielectric disks amplifies
the tenuous axion signal coming from axion-photon conversion in a strong magnetic
field to detectable levels. A Proof of Principle Booster Setup was built to study the
electromagnetic properties and systematic effects of a small scale prototype booster.
It is shown that the dielectric disks can be positioned with μm precision and thermal
effects on disk positions are quantified. Unwanted reflections influence the electromagnetic
response. A model to simulate the effect of unwanted reflections was
developed and tested. It satisfactorily predicts electromagnetic responses for up to
four disks at different distances. It was shown that the booster could be adjusted to
a desired electromagnetic response with acceptable deviations of the boost factor for
up to five disks. Short comings of the model and tilts of the disks were identified.
These become limiting factors for adjusting more disks and introduce systematic
effects that have to be investigated in the future.