Research with ultracold neutrons (UCN) is only enabled by access to UCN sources, like for example the two solid deuterium based sources at the TRIGA research reactor Mainz, or the UCN source at Paul Scherrer Institut, supplying neutrons to the n2edm experiment.
Our active research towards stronger sources, be it through upgrades of the local source hardware, studies of the behaviour of the deuterium crystal or comparison measurements between individual sources, finally leads to shorter measurement times and better statistical sensitivity.