The project is a collaboration of groups from Canada and Japan. Our goal is to provide the world's highest density of ultra-cold neutrons.
The Ultra Cold Neutron Source
The source is a "Spallation Superthermal" UCN source. A beam of protons is stopped in a block on tungsten, producing fast neutrons that are slowed in moderators then reduced to ultra cold speeds by phonon scattering in superfluid helium.
The best experiments for ultra-cold neutrons exploit the fact that they can be stored and observed for up to hundreds of seconds.
Modifications to the M13 area: A new 1U proton beamline (blue) branches off to the North of the existing 1A beamline (pink). Up to one-third of the beam current can be spit off from 1A. The 1U proton beam hits a tungsten spallation target. Fast neutrons from the target are slowed to ultra-cold speeds (<8 m/s) and directed to the UCN experimental area. This drawing shows the proposed neutron electric dipole moment (nEDM)experiment of the floor in the UCN experimental area.