FAST E-FIELD SWITCHING OF A PULSED SURFACE MUON BEAM - THE COMMISSIONING OF THE EUROPEAN MUON FACILITY AT ISIS

The ISIS pulsed muon facility at RAL has been upgraded by the inclusio n of a fast E-field kicker which simultaneously divides and distribute s the muon pulses at surface momentum to the three experimental areas at a repetition rate of 50 Hz. This upgraded facility has been success fully commissioned in conjunction with a new muSR spectrometer. It has been shown that this new spectrometer can operate as expected with a figure of merit for muSR experiments similar to that of the original s pectrometer, in spite of receiving only half of the relative muon inte nsity. This twofold increase in experimental capability will be furthe r increased in the near future by the incorporation of experimental eq uipment in the third beamline. Such a facility will be capable of sati sfying a European wide demand for muSR research with pulsed surface mu ons.