2018/09/27 by Schreyer, Wolfgang, collaboration, TUCAN
#FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Nuclear Experiment (nucl-ex)
paper · doi:10.48550/arxiv.1809.10337
The TRIUMF ultracold advanced neutron (TUCAN) collaboration is a transpacific collaboration with the objective to measure the neutron electric dipole moment. We aim for an unprecedented sensitivity of 10-27 ecm, an improvement by a factor of 30 over the current upper limit for this elusive quantity. To achieve this goal, we are planning a next-generation source for ultracold neutrons, based on a new, dedicated neutron spallation source at TRIUMF, liquid deuterium as cold moderator, and superfluid helium as ultracold-neutron converter. To operate at the full beam power of 20 kW, a 3He fridge will provide a cooling power of 10 W at 0.8 K, cooling the converter to a temperature of 1.1 K.