Design of a single pulse accelerator

For neutron time-of-flight experiments short proton beam bunches with pulse pauses of up to several μsec are needed. Such high pulse current proton accelerators can replace electron linacs of the ORELA type. The injector of such a new system will favorably be an RFQ. An RFQ-design is presented, which produces single pulses of 5 x 109 protons (1 nsec width) with repetition rates between 1 Hz and 20 MHz. Such an RFQ-scheme can also be used to produce empty buckets (beam pauses) for high current linacs injecting into synchrotrons, as discussed for the European Hadron Facility accelerator