Research Article

In-Pile 4He Source for UCN Production at the ESS

Figure 3

Relation between cold, intermediate, and thermal flux in the lower cold/thermal beamlines versus the flux available for UCN, central in the through-going tube. The black curve shows the (unweighted) average between the cold, intermediate, and thermal curves. Each point corresponds to a specific vertical position of the through-going tube.
241639.fig.003