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TY - CONF AU - Lee, Y. AU - Eshraqi, M. AU - Ghatnekar Nilsson, S. AU - Levinsen, Y.I. AU - Miyamoto, R. AU - Molloy, S. AU - Möller, M. AU - Olsson, A. AU - Shea, T.J. AU - Sordo, F. AU - Thomas, C.A. AU - Wilborgsson, M. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Working Concept of 12.5 kW Tuning Dump at ESS J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - The linac system at the European Spallation Source (ESS) will deliver 2~GeV protons at 5~MW beam power. The accelerated protons from the linac will be transported to the rotating tungsten target by two bending magnets. A tuning beam dump will be provided at the end of the linac, downstream of the first bending magnet. This tuning dump shall be able to handle at least 12.5 kW of beam power. In this paper, we present the working concept of the tuning dump. The impact of the proton beam induced material damage on the operational loads and service lifetime of the tuning dump is analysed. A number of particle transport and finite-element simulations are performed for the tuning beam modes. PB - JACoW CP - Geneva, Switzerland SP - 4591 EP - 4594 KW - linac KW - simulation KW - proton KW - target KW - neutron DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-THPVA065 UR - http://jacow.org/ipac2017/papers/thpva065.pdf ER -