CERN Accelerating science

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1.
Design and early operation of a new-generation internal beam dump for CERN’s Super Proton Synchrotron / Francia, A. Romero (CERN) ; Perillo Marcone, A. (CERN) ; Pianese, S. (CERN) ; Andersen, K. (CERN) ; Izquierdo, G. Arnau (CERN) ; Briz, J.A. (CERN) ; Perez, D. Carbajo (CERN) ; Carlier, E. (CERN) ; Coiffet, T. (CERN) ; Esposito, L.S. (CERN) et al.
The Super Proton Synchrotron (SPS) is the last stage in the injector chain for CERN's Large Hadron Collider, and it also provides proton and ion beams for several fixed-target experiments. The SPS has been in operation since 1976, and it has been upgraded over the years. [...]
arXiv:2312.15485.- 2024-04-01 - 19 p. - Published in : Phys. Rev. Accel. Beams 27 (2024) 043001 Fulltext: Publication - PDF; 2312.15485 - PDF;
2.
The SHiP experiment at the proposed CERN SPS Beam Dump Facility / SHiP Collaboration
The Search for Hidden Particles (SHiP) Collaboration has proposed a general-purpose experimental facility operating in beam-dump mode at the CERN SPS accelerator to search for light, feebly interacting particles. The SHiP experiment incorporates two complementary detectors. [...]
arXiv:2112.01487.- 2022-05-26 - 23 p. - Published in : Eur. Phys. J. C 82 (2022) 486 Fulltext: document - PDF; 2112.01487 - PDF;
3.
Sigraflex® Studies for LHC CERN Beam Dump: Summary and Perspective / Heredia, Jorge (CERN) ; Alvaro, Antonio (SINTEF, Oslo) ; Berto, Filippo (Norwegian U. Sci. Tech.) ; Calviani, Marco (CERN) ; Franqueira Ximenes, Rui (CERN) ; Grenier, Damien (CERN) ; Kershaw, Keith (CERN) ; Lechner, Anton (CERN) ; Andreu-Muñoz, Pablo Andreu (CERN) ; Nuiry, Francois-Xavier (CERN) et al.
The Large Hadron Collider (LHC) beam dump (TDE) is essential for safe and reliable operation of the collider. It absorbs particles extracted from the accelerator whenever required. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 3571-3574 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3571-3574
4.
Towards the Last Stages of the CERN’s AD-Target Area Consolidation Project and Recommissioning Plans to Resume Operation / Torregrosa, Claudio (CERN) ; Ahdida, Claudia (CERN) ; Bouvard, Aymeric (CERN) ; Broche, Alexandre (CERN) ; Burger, Stephane (CERN) ; Butcher, Mark (CERN) ; Calviani, Marco (CERN) ; Clerc, Vincent (CERN) ; De Macedo, Aurelio (CERN) ; De Man, Sven (CERN) et al.
Antiprotons are produced at CERN at the Antiproton Decelerator (AD) Target Area by impacting 26 GeV/c proton beams onto a fixed target. Further collection, momentum selection, and transport of the secondary particles - including antiprotons - towards the AD ring is realised by a 400 kA pulsed magnetic horn and a set of magnetic dipoles and quadrupoles. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 3563-3566 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3563-3566
5.
Track reconstruction and matching between emulsion and silicon pixel detectors for the SHiP-charm experiment / SHiP Collaboration
In July 2018 an optimization run for the proposed charm cross section measurement for SHiP was performed at the CERN SPS. A heavy, moving target instrumented with nuclear emulsion films followed by a silicon pixel tracker was installed in front of the Goliath magnet at the H4 proton beamline. [...]
arXiv:2112.11754.- 2022-03-16 - 14 p. - Published in : JINST Fulltext: 2112.11754 - PDF; document - PDF;
6.
Design development and implementation of an irradiation station at the neutron time-of-flight facility at CERN / n_TOF Collaboration
A new parasitic, mixed-field, neutron-dominated irradiation station has been recently commissioned at the European Laboratory for Particle Physics (CERN). The station is installed in the Neutron Time-Of-Flight (n_TOF) facility, taking advantage of the secondary radiation produced by the neutron spallation target. [...]
arXiv:2202.12809.- 2022-10-03 - 49 p. - Published in : Phys. Rev. Accel. Beams 25 (2022) 103001 Fulltext: 2202.12809 - PDF; Publication - PDF;
7.
Selection of radiation tolerant commercial greases for high-radiation areas at CERN: Methodology and applications / Ferrari, Matteo (CERN) ; Senajova, Dominika (CERN ; Imperial Coll., London) ; Kershaw, Keith (CERN) ; Perillo Marcone, Antonio (CERN) ; Calviani, Marco (CERN)
At the European Laboratory for Particle Physics (CERN), commercial greases and oils are extensively used to lubricate moving devices operating in high-radiation areas, absorbing doses up to the MGy range. Due to their sensitivity to radiation, lubricants can become fluid or solid in operation, potentially causing component failures and compromising the operation of the accelerator complex. [...]
2021 - 8 p. - Published in : Nucl. Mater. Energy 29 (2021) 101088 Fulltext: PDF;
8.
High intensity proton beam impact at 440 GeV/c on Mo and Cu coated CfC/graphite and SiC/SiC absorbers for beam intercepting devices / Maestre, Jorge (CERN ; Granada U.) ; Bahamonde, Cristina (CERN) ; Garcia, Inigo Lamas (CERN) ; Kershaw, Keith (CERN) ; Biancacci, Nicolo (CERN) ; Busom, Josep (CERN) ; Frankl, Matthias (CERN ; PSI, Villigen) ; Lechner, Anton (CERN) ; Kurtulus, Adnan (CERN) ; Makimura, Shunsuke (J-PARC ; KEK, Tsukuba) et al.
Beam Intercepting Devices (BIDs) are essential protection elements for the operation of the Large Hadron Collider (LHC) complex. The LHC internal beam dump (LHC Target Dump Injection or LHC TDI) is the main protection BID of the LHC injection system; its main function is to protect LHC equipment in the event of a malfunction of the injection kicker magnets during beam transfer from the SPS to the LHC. [...]
arXiv:2112.04792.- 2022-01-14 - 34 p. - Published in : JINST 17 (2022) P01019 Fulltext: document - PDF; 2112.04792 - PDF;
9.
Design and behaviour of the Large Hadron Collider external beam dumps capable of receiving 539 MJ/dump / Maestre, J. (CERN ; Granada U.) ; Torregrosa, C. (CERN ; Granada U.) ; Kershaw, K. (CERN) ; Bracco, C. (CERN) ; Coiffet, T. (CERN) ; Ferrari, M. (CERN) ; Ximenes, R. Franqueira (CERN) ; Gilardoni, S. (CERN) ; Grenier, D. (CERN) ; Lechner, A. (CERN) et al.
Two 6-t beam dumps, made of a graphite core encapsulated in a stainless steel vessel, are used to absorb the energy of the two Large Hadron Collider (LHC) intense proton beams during operation of the accelerator. Operational issues started to appear in 2015 during LHC Run 2 (2014-2018) as a consequence of the progressive increase of the LHC beam kinetic energy, necessitating technical interventions in the highly radioactive areas around the dumps. [...]
arXiv:2110.08783.- 2021-11-16 - 36 p. - Published in : JINST 16 (2021) P11019 Fulltext: 2110.08783 - PDF; document - PDF; Fulltext from publisher: PDF;
10.
PRACTICAL CHALLENGES OF THE LHC MAIN BEAM DUMP UPGRADES / Martin Ruiz, Jose Maria (CERN) ; Kershaw, Keith (CERN) ; Calviani, Marco (CERN) ; Grenier, Damien (CERN) ; Maestre Heredia, Jorge ; Torregrosa Martin, Claudio Leopoldo (Universidad de Oviedo (ES)) ; Buonocore, Luca Rosario (CERN) ; Serrano Galvez, Pablo ; Matheson, Eloise (CERN) ; Sola Merino, Jorge et al.
The two Large Hadron Collider (LHC) beam dumps have to withstand arduous operating conditions and are essential for the safe and reliable operation of the collider. [...]
CERN-ACC-NOTE-2021-0027.
- 2021. - 8 p.
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