Design of the Future High Energy Beam Dump for the CERN SPS

The future CERN Super Proton Synchrotron (SPS) internal dump (Target Internal Dump Vertical Graphite, known as TIDVG#5), to be installed during CERN's Long Shutdown 2 (2019-2020), will be required to intercept beam dumps from 26 to 450 GeV, with increased intensity and repetition rates with respect to its predecessor (TIDVG#4). The beam power to be managed by the dump will increase by approximately a factor of four; resulting in new challenges in terms of design in order to fulfil the highly demanding specification, which is based on guaranteeing a good performance of the machine with little or no limitations imposed by this device. This paper presents the proposed design, including material selection, manufacturing techniques and thermo-mechanical simulations under different operational scenarios expected during the lifetime of the device.The future CERN Super Proton Synchrotron (SPS) in- ternal dump (Target Internal Dump Vertical Graphite, known as TIDVG#5), has been designed within the frame- work of the LHC Injectors Upgrade (LIU) Project. It will be installed during CERN’s Long Shutdown 2 (2019-2020) and will be built to intercept beam dumps from 14 to 450 GeV. The beam intensity and repetition rates to be ab- sorbed by the dump will be significantly higher with re- spect to the present device (TIDVG#4, [1]), resulting in an increase in average beam power to 235 kW (currently, this value is limited to 60 kW). Considering such highly de- manding specifications, in order to guarantee an efficient operation with little or no limitations produced by this de- vice, new challenges in terms of design are encountered. This paper presents the proposed design, including mate- rial selection, manufacturing techniques and thermo-me- chanical simulations taking into account the worst-case scenario for beam operation