Monochromatic neutrino beams from the decay of rare earth nuclei

With the recent discovery of rare-earth nuclei which decay fast through electron capture to single final states in Gamow Teller resonances, interest has ignited in the possibility of using the beta-beam accelerator facility to produce a monochromatic beam of electron neutrinos. This study is part of a Summer Studentship in the Beta-beam project in EURISOL DS and evaluates the ion intensities and incoherent Laslett tune-shifts in each machine for four rare-earth ions 148Dy, 150Dy, 150Ho and 152Tm. The simulation of the accelerator chain is a modified version of the Mathematica notebook intensities.nb [see Appendix], incorporating the four nuclei investigated, accumulation at low energy in the RCS and a vacuum stripping half-life of 60 seconds.