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TY - CONF AU - Esposito, R. AU - Beregret, M. AU - Calviani, M. AU - Coiffet, T. AU - Delonca, M. AU - Dufay-Chanat, L. AU - Gallay, E. AU - Gomez Pereira, L. AU - Guinchard, M. AU - Horvath, D. AU - Koettig, T. AU - Latini, F. AU - Logé, R. AU - Perez Fontenla, A.T. AU - Perez, A.P. AU - Perillo-Marcone, A. AU - Sgobba, S. AU - Timmins, M.A. AU - Vacca, A. AU - Vlachoudis, V. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Design of the New CERN n_{T}OF Neutron Spallation Target: R&D and Prototyping Activities J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - A new spallation target for the CERN neutron time-of-flight facility will be installed during Long Shutdown 2 (2019-2020), with the objective of improving operational reliability, avoiding water contamination of spallation products, corrosion/erosion and creep phenomena, as well as optimizing it for the 20 m distant vertical experimental area 2, whilst keeping the same physics performances of the current target at the 200 m far experimental area 1. Several solutions have been studied with FLUKA Monte Carlo simulations in order to find the optimal solution with respect to neutron fluence, photon background, resolution function, energy deposition and radiation damage. Thermo-mechanical studies (including CFD simulations) have been performed in order to evaluate and optimize the target ability to withstand the beam loads in terms of maximum temperatures reached, cooling system efficiency, maximum stresses, creep and fatigue behaviour of the target materials, leading to a preliminary mechanical design of the target. This paper also covers the further prototyping and material characterization activities carried out in order to validate the feasibility of the investigated solutions. PB - JACoW CP - Geneva, Switzerland SP - 3503 EP - 3505 KW - target KW - neutron KW - interface KW - operation KW - proton DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-WEPVA102 UR - http://jacow.org/ipac2017/papers/wepva102.pdf ER -