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TY - CONF AU - Lagrange, J.-B. AU - Adams, D.J. AU - Brown, C. AU - Cavanagh, H.V. AU - Gardner, I.S.K. AU - Griffin-Hicks, P.T. AU - Jones, B. AU - Kelliher, D.J. AU - Letchford, A.P. AU - Machida, S. AU - Pasternak, J. AU - Pine, B.G. AU - Pozimski, J.K. AU - Prior, C.R. AU - Rees, G.H. AU - Rogers, C.T. AU - Thomason, J.W.G. AU - Warsop, C.M. AU - Williamson, R.E. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Progress on Design Studies for the ISIS II Upgrade J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - ISIS, the spallation neutron source at the Rutherford Appleton Laboratory in the UK, uses a 50 Hz, 800 MeV proton RCS to provide a beam power of 0.2 MW, delivered in 0.4 us long pulses. Detailed studies are now under way for a major upgrade. Accelerator designs using FFAs, conventional accumulator and synchrotron rings are being considered for the required MW beam power. This paper summarises the scope of the different research incorporating results from recent target studies and user consultations. Preliminary results for Fixed Field Alternating gradient (FFA) rings and conventional rings located in the existing ISIS synchrotron hall are presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2075 EP - 2078 KW - lattice KW - proton KW - synchrotron KW - injection KW - neutron DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPTS068 UR - http://jacow.org/ipac2019/papers/tupts068.pdf ER -