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Settings for Improved Betatron Collimation in the First Run of the High Luminosity LHC
/ Lindström, Bjorn (CERN) ; Abramov, Andrey (CERN) ; Bruce, Roderik (CERN) ; De Maria, Riccardo (CERN) ; Hermes, Pascal (CERN) ; Molson, James (CERN) ; Redaelli, Stefano (CERN) ; Van der Veken, Frederik (CERN)
The current betatron collimation system in the LHC is not optimized to absorb off-momentum particles scattered out from the primary collimators. The highest losses are concentrated in the downstream dispersion suppressor (DS). [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1366-1369
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1366-1369
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2.
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Experimental Test of a New Method to Verify Retraction Margins Between Dump Absorbers and Tertiary Collimators at the LHC
/ Wiesner, Christoph (CERN) ; Bartmann, Wolfgang (CERN) ; Bracco, Chiara (CERN) ; Bruce, Roderik (CERN) ; Molson, James (CERN) ; Schaumann, Michaela (CERN) ; Staufenbiel, Christian (CERN) ; Uythoven, Jan (CERN) ; Valette, Matthieu (CERN) ; Wenninger, Jorg (CERN) et al.
The protection of the tertiary collimators (TCTs) and the LHC triplet aperture in case of a so-called asynchronous beam dump relies on the correct retraction between the TCTs and the dump region absorbers. A new method to validate this retraction has been proposed, and a proof-of-principle experiment was performed at the LHC. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 115-118
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.115-118
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3.
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Collimation Strategies for Secondary Beams in FCC-hh Ion-Ion Operation
/ Hunt, James (CERN) ; Bruce, Roderik (CERN) ; Carra, Federico (CERN) ; Cerutti, Francesco (CERN) ; Guardia-Valenzuela, Jorge (CERN) ; Molson, James (CERN)
The target peak luminosity of the CERN FCC-hh during Pb-Pb collisions is more than a factor of 50 greater than that achieved by the LHC in 2018. As a result, the intensity of secondary beams produced in collisions at the interaction points will be significantly higher than previously experienced. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) WEPAB025
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.WEPAB025
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4.
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Gamma Factory for CERN initiative - progress report
/ Dutheil, Yann (CERN) ; Abramov, Andrey (Royal Holloway, U. of London) ; Alden, Siobhan (Royal Holloway, U. of London) ; Alemany Fernandez, Reyes (CERN) ; Antsiferov, Pavel (Troitsk, IZMIRAN) ; Apyan, Armen (NAS Armenia, Yerevan) ; Bartosik, Hannes (CERN) ; Bessonov, Evgeny (Lebedev Inst.) ; Biancacci, Nicolo (CERN) ; Bieron, Jacek (Jagiellonian U.) et al.
The Gamma Factory (GF) initiative proposes to use partially stripped ion (PSI) beams as drivers of a new type of high-intensity and high-energy (0.1–400 MeV) photon source. As part of the ongoing Physics Beyond Collider studies, initial beam tests were carried out in 2017 and 2018 at the SPS and LHC with partially stripped xenon and lead beams [...]
CERN-PBC-CONF-2021-006.-
SISSA, 2020 - 10 p.
- Published in : PoS EPS-HEP2019 (2020) 020
Fulltext from publisher: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.020
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5.
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Merlin++, a flexible and feature-rich accelerator physics and particle tracking library
/ Appleby, Robert B. (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Barlow, Roger J. (Huddersfield U.) ; Kruecker, Dirk (DESY) ; Molson, James (CERN) ; Rowan, Scott (Huddersfield U.) ; Tygier, Sam (U. Manchester (main)) ; Rafique, Haroon (CERN) ; Walker, Nicholas (DESY) ; Wolski, Andrzej (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.)
Merlin++ is a C++ charged-particle tracking library developed for the simulation and analysis of complex beam dynamics within high energy particle accelerators. Accurate simulation and analysis of particle dynamics is an essential part of the design of new particle accelerators, and for the optimization of existing ones. [...]
arXiv:2011.04335.-
2022-02 - 17 p.
- Published in : Comput. Phys. Commun. 271 (2022) 108204
Fulltext: PDF;
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Collimation of partially stripped ions in the CERN Large Hadron Collider
/ Gorzawski, Arkadiusz (CERN ; Malta U.) ; Abramov, Andrey (CERN ; JAI, UK) ; Bruce, Roderik (CERN) ; Fuster-Martínez, Nuria (CERN) ; Krasny, Mieczyslaw (CERN ; Paris U., VI-VII) ; Molson, James (CERN) ; Redaelli, Stefano (CERN) ; Schaumann, Michaela (CERN)
In the scope of the Physics Beyond Colliders studies, the Gamma-Factory initiative proposes the use of partially stripped ions as a driver of a new type of high-intensity photon source in CERN Large Hadron Collider (LHC). In 2018, the LHC accelerated and stored partially stripped $^{208}\text{Pb}^{81+}$ ions for the first time. [...]
arXiv:2007.12507; CERN-PBC-Notes-2021-016.-
2020-10-24 - 11 p.
- Published in : Phys. Rev. Accel. Beams 23 (2020) 101002
Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
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8.
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9.
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SixTrack project: Status, runtime environment, and new developments
/ De Maria, Riccardo (CERN) ; Andersson, Joel (CERN) ; Field, Laurence (CERN) ; Giovannozzi, Massimo (CERN) ; Hermes, Pascal (CERN) ; Hoimyr, Nils (CERN) ; Iadarola, Giovanni (CERN) ; Kostoglou, Sofia (CERN) ; Maclean, Ewen (CERN ; U. Malta) ; McIntosh, Eric (CERN) et al.
SixTrack is a single-particle tracking code for high-energy circular accelerators routinely used at CERN for the Large Hadron Collider (LHC), its luminosity upgrade (HL-LHC), the Future Circular Collider (FCC), and the Super Proton Synchrotron (SPS) simulations. The code is based on a 6D symplectic tracking engine, which is optimised for long-term tracking simulations and delivers fully reproducible results on several platforms. [...]
2019 - 7 p.
- Published in : 10.18429/JACoW-ICAP2018-TUPAF02
Fulltext from publisher: PDF;
In : 13th International Computational Accelerator Physics Conference (ICAP 2018), Key West, FL, USA, 20 - 24 Oct 2018, pp.TUPAF02
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10.
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Collimation of heavy-ion beams in the HE-LHC
/ Abramov, Andrey (JAI, UK ; CERN ; Royal Holloway, U. of London) ; Bruce, Roderik (CERN) ; Crouch, Matthew (CERN) ; Fuster-Martínez, Nuria (CERN) ; Mereghetti, Alessio (CERN) ; Molson, James (CERN) ; Nevay, Laurence (JAI, UK ; Royal Holloway, U. of London ; CERN) ; Redaelli, Stefano (CERN)
A design study for a future collider to be built in the LHC tunnel, the High-Energy Large Hadron Collider (HE-LHC), has been launched as part of the Future Circular Collider (FCC) study at CERN. It would provide proton collisions at a centre-of-mass energy of 27 TeV as well as collisions of heavy ions at the equivalent magnetic rigidity. [...]
CERN-ACC-2019-151.-
2019 - 4 p.
- Published in : (2019) , pp. MOPRB059
- Published in : J. Phys.: Conf. Ser. 1350 (2019) 012072
Fulltext from publisher: PDF; Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPRB059
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