Events in our system are self-managed.  Group and event managers are encouraged to review privacy and security settings, and adjust them if needed.  If you need assistance please contact Indico Support - contact Help at bottom of page.

Oct 15 – 20, 2017
Harrison Hot Springs
Canada/Pacific timezone

Status of the UCN guides development for the TRIUMF UCN source and TRIUMF neutron EDM experiment.

Oct 17, 2017, 8:15 PM
Harrison Hot Springs

Harrison Hot Springs

100 Esplanade Avenue, Harrison Hot Springs, BC Canada V0M 1K0
Oral Transport and manipulation of ultra cold neutrons (materials, valves, polarization, spin transport, neutron detection) TuEv


Dr Edgard Pierre (TRIUMF)


We are currently developing a super-thermal Ultracold Neutron (UCN) source using phonon exchange in super-fluid helium. To take full advantage of the high density of UCNs from our source, high transmission guides for polarized UCNs are being developed. Statistical sensitivity is the main limiting factor for a neutron EDM measurement. Furthermore, this sensitivity also depends on the initial polarization of the stored UCNs. Polarization must be maintained from the UCN source to the EDM cell. Preliminary material characterizations and plans to determine the transmission and the depolarization per bounce of these new guides with UCNs will be presented in this talk.

Primary author

Dr Edgard Pierre (TRIUMF)

Presentation materials