CERN Accelerating science

Preprint
Report number	CERN-ACC-NOTE-2022-0009 ; CERN-PBC-Notes-2022-002
Title	Study of alternative locations for the SPS Beam Dump Facility
Author(s)	Aberle, Oliver (CERN) ; Ahdida, Claudia (CERN) ; Arrutia Sota, Pablo Andreas (University of Oxford (GB)) ; Balazs, Kincso (CERN) ; Bernhard, Johannes (CERN) ; Brugger, Markus (CERN) ; Calviani, Marco (CERN) ; Dutheil, Yann (CERN) ; Franqueira Ximenes, Rui (CERN) ; Fraser, Matthew Alexander (CERN) ; Galleazzi, Frederic (CERN) ; Gilardoni, Simone (CERN) ; Grenard, Jean-Louis (CERN) ; Griesemer, Tina (CERN) ; Jacobsson, Richard (CERN) ; Kain, Verena (CERN) ; Lafarge, Damien (CERN) ; Marsh, Simon (CERN) ; Martin Ruiz, Jose Maria (CERN) ; Mena Andrade, Ramiro Francisco (Centro de Investigaciones Energéticas Medioambientales y Tec. (ES)) ; Muttoni, Yvon (CERN) ; Navascues Cornago, Angel (CERN) ; Ninin, Pierre (CERN) ; Osborne, John Andrew (CERN) ; Ramjiawan, Rebecca Louise (CERN) ; Santos Diaz, Pablo (National University of Science and Technology "MISIS" (RU)) ; Sanchez Galan, Francisco (CERN) ; Vincke, Heinz (CERN) ; Vojtyla, Pavol (CERN)
Publication	28 Feb 2022
Imprint	28 Feb 2022-28 Feb 2022-28 Feb 2022
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN SPS
Study	Physics Beyond Colliders
Project	Beam Dump Facility
Abstract	As part of the main focus of the BDF Working Group in 2021, this document reports on the study of alternative locations and possible optimisation that may accompany the reuse of existing facilities with the aim of significantly reducing the costs of the facility. Building on the BDF/SHiP Comprehensive Design Study (CDS), the assessment rests on the generic requirements and constraints that allow preserving the physics reach of the facility by making use of the 4 ⇥1019 protons per year at 400 GeV that are currently not exploited at the SPS and for which no existing facility is compatible. The options considered involve the underground areas TCC4, TNC, and ECN3. Recent improvements of the BDF design at the current location (referred to as ‘TT90-TCC9-ECN4’) are also mentioned together with ideas for yet further improvements. The assessments of the alternative locations compiled the large amount of information that is already available together with a set of conceptual studies that were performed during 2021. The document concludes with a qualitative comparison of the options, summarising the associated benefits and challenges of each option, such that a recommendation can be made about which location is to be pursued. The most critical location-specific studies required to specify the implementation and cost for each option are identified so that the detailed investigation of the retained option can be completed before the end of 2022.
Submitted by	lucie.mainoli@cern.ch