English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Thesis

Design einer Abschirmspule zur Minimierung äußerer Magnetfeldeinflüsse bei Präzisions-Penningfallen-Experimenten an Helium-3

MPS-Authors
/persons/resource/persons250185

Berner,  Jacob Maria
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

200819_BA.pdf
(Any fulltext), 3MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Berner, J. M. (2020). Design einer Abschirmspule zur Minimierung äußerer Magnetfeldeinflüsse bei Präzisions-Penningfallen-Experimenten an Helium-3. Bachelor Thesis, Ruprecht-Karls-Universität, Heidelberg.


Cite as: https://hdl.handle.net/21.11116/0000-0006-E5D8-4
Abstract
A new experiment for the mesurement of the magnetic moment and the g-factor of the<br>Helium-3 nucleus is currently unter construction at the Max Planck Institute for Nuclear<br>Physics. <sup>3</sup>He<sup>+</sup> as well as <sup>3</sup>He<sup>2+<sup> will be investigated in a speci_cally designed Penning trap.<br>The relative uncertainty of these measured values shall be 1 ppb or better. To achieve this level<br>of precision, very stable experimental parameters are required.<br>Therefore external disturbance of the Penning trap's high magnetic field should be shielded<br>by a specific coil. To use the magentic ux conservation in superconducting circuits, the geometry<br>of the coil was in the context of this thesis optimized and its ideal length was estimated.<br>The accordingly constructed self shielding coil was then testet using a cold head and a<br>shielding factor of S = 52 +/- 4 as well as a good spatial stability of it was verfied. Because these<br>results were effected by the use of an inhomogeneous external field, the coil was subsequently<br>tested after installing it into the superconducting magnet with an ion stored in a Penning<br>trap. Here the high shielding factor of the magnet itself caused difficulties. The final result<br>S = 78 <sup>+∞</sup><sub>-74</sub> is inaccurate, but still good shielding characteristics and therefore an integral part<br>of the magnetic field stability of the <sup>3</sup>He-experiment was ensured.<br>