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- C.S. Derrez, R.A. Baron, R.E. Bebb, E.C. Bergman, I. Dolenc Kittelmann, E.M. Donegani, T. Fay, T.J. Grandsaert, V. Grishin, S. Haghtalab, H. Hassanzadegan, A. Jansson, H. Kocevar, E. Laface, Ø. Midttun, R. Miyamoto, J. Norin, K.E. Rosengren, T.J. Shea, A.G. Sosa, R. Tarkeshian, L. Tchelidze, C.A. Thomas, P.L. van Velze
ESS, Lund, Sweden
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The European Spallation Source (ESS) is currently under construction in Lund (Sweden), and its 5 MW of average beam power at repetition rate of 14 Hz will make it five times more powerful than other pulsed neutron-scattering facilities. High-energy neutrons will be produced via spallation by 2 GeV protons on a tungsten target. A complete suite of beam diagnostics will enable tuning, monitoring and protection of the proton accelerator during commissioning, studies and operation. As an initial step toward neutron production, the Ion Source (ISrc) and the 75keV Low Energy Beam Transport Line (LEBT) have been installed. For the commissioning and characterization of this first beam-producing system, a subset of the ISrc and LEBT diagnostics suite has been deployed. This includes the following equipment: a Faraday cup, beam current transformers, an Allison Scanner emittance measurement unit, beam-induced fluorescence monitors, and a Doppler-shift spectroscopy system. Beam instrumentation deployment and performance verification, as well as the operational experience during the initial beam commissioning, will be presented.
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