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All CERN Accelerators documents

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2025-04-25
06:31
Crystal collimation of heavy-ion beams / Redaelli, Stefano (CERN) ; Mazzolari, Andrea (INFN, Pisa) ; Abramov, Andrey (CERN) ; Lechner, Anton (CERN) ; Lindstrom, Bjorn (CERN) ; Mirarchi, Daniele (CERN) ; Matheson, Eloise (CERN) ; Potoine, Jean-Baptiste (IES, Montpellier) ; Dewhurst, Kay (CERN) ; Bandiera, Laura (INFN, Pisa) et al.
An important upgrade programme is planned for the collimation system of Large Hadron Collider (LHC) for lead–ion beams that will already reach their high-luminosity target intensity upgrade in the LHC Run 3 (2022-2025). While certain effects like e-cloud, beam-beam, impedance, inject and dump protection are relaxed with ion beams, halo collimation becomes a challenge, as the conventional multi-stage collimation system is about two orders of magnitude less efficient than for proton beams. [...]
2024 - 6 p. - Published in : JACoW IPAC 2024 (2024) FRXN3 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.FRXN3

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2025-04-25
06:31
High-efficiency klystrons from a dream to a reality / Catalan-Lasheras, Nuria (CERN) ; Beunas, Armel (Thales Electron Devices, Velizy) ; Burt, Graeme (Lancaster U.) ; Syratchev, Igor (CERN) ; Brunner, Olivier (CERN) ; Anno, Toshiro (TETD, Otawara)
During last year a comprehensive R&D; program on high-efficiency klystrons has been carried out in collaboration with industry. The first prototypes are being tested and experimental results are promising. [...]
2024 - 6 p. - Published in : JACoW IPAC 2024 (2024) FRYD1 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.FRYD1

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2025-04-24
11:01
LHC MD #12263 - Weak-Strong investigation of Long-Range Beam-beam / Persson, Tobias Hakan Bjorn (CERN) ; Buffat, Xavier (CERN) ; Carlier, Felix Simon (CERN) ; Burkhardt, Felix (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Dilly, Joschua Werner (CERN) ; Hostettler, Michi (CERN) ; Kar, Ujani (University of Applied Sciences (DE)) ; Maclean, Ewen Hamish (CERN) ; Tomas Garcia, Rogelio (CERN)
During the intensity ramp-up in 2024, it was revealed that the collimation hierarchy was broken under normal operational conditions with bunch trains. [...]
CERN-ACC-NOTE-2025-0011. - 2025
Full text

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2025-04-24
10:54
LHC MD #11883: Optics functions determination using luminosity data / Persson, Tobias Hakan Bjorn (CERN) ; Wanczyk, Joanna
Measuring the betatron waist shift in the Large Hadron Collider (LHC) via conventional k-modulation has proven challenging, motivating the need for alternative techniques. [...]
CERN-ACC-NOTE-2025-0010. - 2025

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2025-04-24
06:33
IV.1 — The origin of JUAS, 1990–1993 / Rey-Campagnolle, Marcelle (ESI, Archamps ; Grenoble, CEN ; CERN) ; Rinolfi, Louis
The origin of the Joint Universities Accelerator School can be traced back to a collaboration between CERN-based physicists, ESRF and the Université Joseph Fourier in Grenoble, France, in 1990. This led to a formal collaboration with the CERN Directorate to implement a joint universities school in Archamps (France) with the support of the Haute-Savoie local authorities..
2024 - 8 p. - Published in : CERN Yellow Rep. School Proc. 3 (2024) 2203 Fulltext: PDF;
In : Proceedings of the Joint Universities Accelerator School (JUAS) : Courses and exercises, Geneva, Switzerland, 27 Nov 2024, pp.2203 (CERN-2024-003)

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2025-04-24
06:33
IV.8 — JUAS during 2021 / Jowett, John M (CERN ; Darmstadt, GSI)
This chapter covers the period John M. Jowett was JUAS director (i.e. [...]
2024 - 8 p. - Published in : CERN Yellow Rep. School Proc. 3 (2024) 2349 Fulltext: PDF;
In : Proceedings of the Joint Universities Accelerator School (JUAS) : Courses and exercises, Geneva, Switzerland, 27 Nov 2024, pp.2349 (CERN-2024-003)

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2025-04-24
06:33
IV.6 — JUAS during the period 2011–2016 / Rinolfi, Louis (CERN)
This chapter covers the period Louis Rinolfi was JUAS Director (i.e. between 2011 and 2016). [...]
2024 - 50 p. - Published in : CERN Yellow Rep. School Proc. 3 (2024) 2287 Fulltext: PDF;
In : Proceedings of the Joint Universities Accelerator School (JUAS) : Courses and exercises, Geneva, Switzerland, 27 Nov 2024, pp.2287 (CERN-2024-003)

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2025-04-24
06:33
IV.9 — JUAS during the period 2022–2024 / Métral, Elias (CERN)
This chapter covers the period Elias Métral was JUAS director (i.e. as of August 2021)..
2024 - 15 p. - Published in : CERN Yellow Rep. School Proc. 3 (2024) 2357 Fulltext: PDF;
In : Proceedings of the Joint Universities Accelerator School (JUAS) : Courses and exercises, Geneva, Switzerland, 27 Nov 2024, pp.2357 (CERN-2024-003)

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2025-04-24
06:33
IV.7 — JUAS during the period 2017–2020 / Lebrun, Philippe (CERN)
This chapter covers the period Philippe Lebrun was JUAS director (i.e. between 2017 and 2020)..
2024 - 12 p. - Published in : CERN Yellow Rep. School Proc. 3 (2024) 2337 Fulltext: PDF;
In : Proceedings of the Joint Universities Accelerator School (JUAS) : Courses and exercises, Geneva, Switzerland, 27 Nov 2024, pp.2337 (CERN-2024-003)

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2025-04-23
15:28
1999 SL annual report / King, Q
SL-Note-2000-021-DI.- Geneva : CERN, 2000 - 35 p. Note

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