HIGH POWER OPERATIONAL EXPERIENCE AT ISIS

Since 2008 ISIS has been running a second target station (TS-2) optimised for cold neutron production while continuing to run the original 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 TS-1 and TS-2, 40 pps to TS-1 and 10 pps to TS-2. ISIS operations are described, including the first years of the new twotarget-station operational regime.