Neutrino flux calculations for the proposed European Spallation Source

The neutrino production rates for a spallation neutron source with proton beams in the energy range 650 < T_p < 2200 MeV are calculated to an accuracy of 25%. The target geometries used are based upon the tantalum and mercury targets proposed for the European spallation source (ESS). Results for #nu#_#mu#, #nu#_e, and anti #nu#_#mu# rates due to #pi#"+ and #mu#"+ decay at rest, and for #nu#_#mu# rates from #pi#"+ decay in flight, are presented in terms of neutrinos per proton. For the ESS proposed energy of 1334 MeV and a tantalum target, the production rates for decay at rest are calculated to be (#nu# p"-"1) = 0.139. For a neutrino detector located 20 meters away from the tantalum target, and at 0"o, the integrated flux of #nu#_#mu# above 150 MeV from #pi#"+ decay-in-flight is 2.8 x 10"5 (cm"-"2 s"-"1). Backgrounds of anti #nu#_e, from the #pi#"-decay-in-flight and #mu#"- decay-at-rest chain, are found to be 0.08% of the #nu#_e flux. (orig.)Available from FIZ Karlsruhe / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman