Speaker
Description
Modern neutron electric dipole moment experiments require high precision characterization of magnetic fields to adequately control systematic uncertainties. The measured magnetic fields are modeled by an expansion that practically must assume a finite order and often that the experimental volume is free of magnetic sources. Magnetic contamination, defined as unintended magnetic fields originating from materials within an experiment, can violate both of these assumptions. Thus a given systematic precision requires limits on acceptable magnetic contamination, which for the n2EDM experiment can be exceeded by a $20~\mu\mathrm m$ iron particle. This talk surveys the magnetic contamination program for the n2EDM experiment which aims to limit contamination effects to below $3\times10^{-28}\ e\cdot\mathrm{cm}$