STFC/RAL/ISIS, Chilton, Didcot, Oxon
At present ISIS is the world's most productive spallation neutron source. For the last two years (i.e. since 2008) ISIS has been running a second target station (TS-2) optimised for cold neutron production while continuing to run the first target station (TS-1) which began operating in 1984. The ISIS 800 MeV proton synchrotron cycling at 50 Hz produces a total beam power of 0.2 MW which is split between the first target station (TS-1) and TS-2, 40 Hz to TS-1 and 10 Hz to TS-2. The first two years of the new two-target-station operational regime are described.
