Speaker
Description
As part of the consolidation of CERN’s North Experi-mental Area (NA-CONS project), a dump located in the TT20 transfer line has been redesigned to comply with the higher beam intensities required for the future BDF/SHiP facility, and to improve its operational relia-bility. The new dump must be capable of dissipating up to 45 kW of steady-state power generated by the slow extraction of 400 GeV/c protons from the SPS under vari-ous operational scenarios. In addition, it shall also be able to withstand short, high-intensity pulses during machine development phases. Building upon proven design concepts implemented in the previous generation of SPS dumps [1,2], the dump core consists of graphite blocks clamped by actively cooled CuCr1Zr plates, and is enclosed by two shielding layers, steel and marble, for radiological protection. The design has been validated by performing beam-matter and thermo-mechanical simu-lations. A dedicated testbench was used to estimate the thermal contact conductance between materials and pro-vide realistic values for the simulations. This contribu-tion presents the main stages of this upgrade, from defini-tion of updated beam parameters to conceptual design and validation.
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