Figure 11
(a) FoM curves averaged over all instruments in Fig. 9 for minimum source–guide distances of 1 and 2 m. FoM values which were set to zero in Fig. 9, as described in the text, have been excluded from the averages. (b) The heat load at the guide entrance as a function of guide start, relative to the Spallation Neutron Source (SNS, Oak Ridge, Tennessee, USA) at 1.4 MW and assuming that it scales as P/Lmin2 where P is the time-averaged power of the source and Lmin is the minimum guide distance. Lmin at the SNS is 1.0 m. |