Ultra Cold Neutron Source

A user facility providing ultracold neutrons for fundamental physics research, based on accelerator driven spallation neutron production and a superthermal converter, was built at the Paul Scherrer Institut and has been in operation since 2011. The source is operated by the BSQ group.

The UCN source provides neutrons at 3 beamports - West-1, West-2 and South, which differ in UCN intensity.

Experimental area South is allocated to the experiment searching for the electric dipole moment of the neutron (nEDM). With the n2EDM apparatus under construction, a sensitivity of better than 10^-27 e^.cm is aimed at, providing one of the most sensitive searches for CP violation beyond the Standard Model of particle physics.

PSI accepts proposals for full experiments or hardware tests for UCN beamport West-1 and West-2, which should be provided via a standard beamline request.

For more information visit the BVR and Research Committee pages.

A description of the UCN experimental areas can be found in: UCN beamlines at PSI.

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