Magnetic Field and UCN Guide R&D for the UCN nEDM Experiment at TRIUMF

Russell Mammei (U Winnipeg/TRIUMF)
Event Date and Time: 
Thu, 2016-01-14 14:00 - 15:00
TRIUMF Auditorium

The TRIUMF neutron electric dipole moment (nEDM) experiment is the first experiment that will use the new spallation driven superfluid helium UCN source at TRIUMF. This experiment will employ a room temperature Ramsey Resonance based EDM apparatus and aims to constrain the nEDM by an order of magnitude. In this design, inhomogeneities and lack of stability of the applied magnetic fields are expected to be leading sources of systematic errors in the measurement. In addition, crucial to the success of this experiment is the efficient transport of UCN from the source to the nEDM apparatus itself. This presentation will discuss R&D efforts toward these two aspects which includes work concerning active and passive magnetic shielding, magnetic field generation inside shielded volumes, precision magnetometry, and thin film coatings for UCN guides.

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