CERN Accelerating science

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2024-11-08
11:44
The Acceptance Box - A Simple Diagnostics Tool for Source Optimization and Transverse Beam Matching / Koopmans, Marten Henrik (CERN) ; Lallement, Jean-Baptiste (CERN) ; Lombardi, Alessandra (CERN) ; Marchetti, Emanuele (Politecnico di Milano (IT)) ; Pasino, Eleonora (Università degli Studi e INFN Milano (IT)) ; Sargsyan, Edgar (CERN)
The measurement of the emittance and Twiss parameters of a low to medium energy ion beam is a time intensive procedure and requires special hardware as well as data acquisition and analysis. [...]
CERN-ACC-NOTE-2024-0021.
- 2024
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2024-11-07
09:46
Numerical Models and Interplay of Intrabeam Scattering with Incoherent Effects for High Brightness Circular Accelerators / Zampetakis, Michail (CERN)
Future and existing circular accelerators require high beam brightness, which can be limited by collective effects such as space charge (SC) and intrabeam scattering (IBS). These effects can degrade beam quality, even in scenarios where strong damping due to synchrotron radiation (SR) is present. [...]
CERN-THESIS-2024-224.- 175 p. Fulltext: PDF; External link: Approve this document (restricted)

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2024-10-31
06:04
Characterisation of the n_TOF 20 m beam line at CERN with the new spallation target / n_TOF Collaboration
The n_TOF facility hosts CERN’s pulsed neutron source, comprising two beam lines of different flight paths and one activation station. It is based on a proton beam delivered by the PS accelerator impinging on a lead spallation target. [...]
2023 - 6 p. - Published in : EPJ Web Conf. 284 (2023) 06006 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.06006

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2024-10-15
15:13
Design and Development of a New ISOLDE Beam Dump / Martin Ruiz, Jose Maria
The CERN ISOLDE facility is currently equipped with two uncooled iron blocks acting as beam dumps [...]
CERN-THESIS-2024-187 -


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2024-10-11
07:15
Status of E-Cooling Characterisation at 100 keV in ELENA / Gamba, Davide (CERN) ; Asvesta, Foteini (CERN) ; Kruyt, Peter (CERN ; Frankfurt U.) ; Ponce, Laurette (CERN) ; Russo, Giulia (CERN)
The Extra Low ENergy Antiproton ring (ELENA) ring at CERN was commissioned in 2018 and is in regular production operation from 2021. ELENA uses e-cooling for cooling pbar beams on two plateaus at 653 keV and 100 keV kinetic energy. [...]
2024 - 6 p. - Published in : JACoW COOL 2023 (2024) THPAM1R3 Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.THPAM1R3

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2024-10-11
07:10
H0 Diagnostics for the ELENA Electron Cooler / Tranquille, Gerard (CERN)
In addition to antiprotons, the ELENA ring at CERN can also inject protons and H⁻ ions from a dedicated ion source located close to the ring. These particles offer the possibility for extra diagnostics for detailed investigations into the cooling process at the very low energy of the ELENA ring. [...]
2024 - 4 p. - Published in : JACoW COOL 2023 (2024) 68-71 Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.68-71

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2024-10-11
07:10
Measurements of beam correlations induced via coupled resonance crossing in the CERN PSB / Lamb, Elleanor (CERN ; Ecole Polytechnique, Lausanne) ; Asvesta, Foteini (CERN) ; Franchetti, Giuliano (Darmstadt, GSI) ; Sterbini, Guido (CERN) ; Bartosik, Hannes (CERN) ; Seidel, Mike (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; Albright, Simon (CERN) ; Prebibaj, Tirsi (CERN)
Beam profile measurements in the LHC and its injector complex show heavy tails in both transverse planes. From standard profile measurements, it is not possible to determineif the underlying phase space distribution is statistically independent. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) TUPC07 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC07

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2024-10-11
07:10
Tail population studies in the CERN Proton Synchrotron / Bozatzis, Miltiadis (Aristotle U., Thessaloniki ; CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Huschauer, Alexander (CERN) ; Lasheen, Alexandre (CERN) ; Maclean, Ewen (CERN) ; Prebibaj, Tirsi (CERN) ; Van Goethem, Wietse (CERN)
The beam quality in terms of the transverse beam profiles from the CERN injectors plays a crucial role for the luminosity production at the LHC. Transverse tails beyond a Gaussian distribution have been observed in all the LHC injectors and efforts to optimize them are ongoing, as they can perturb operations due to large losses at LHC injection. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPC15 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC15

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2024-10-11
07:10
Dynamic Aperture and Frequency Analysis in ELENA with Electron Cooler Magnetic Field Included / Bojtár, Lajos (CERN)
We present a new tracking algorithm and its implementation called SIMPA. It has the unique feature of long-term tracking of charged particles in arbitrary static electromagnetic fields in a symplectic way. [...]
2024 - 5 p. - Published in : JACoW COOL 2023 (2024) TUPAM1R3 Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.TUPAM1R3

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2024-10-09
15:10
A review of the 2023 antiproton physics run in the CERN antimatter factory / Bojtar, Lajos (CERN) ; Lefort, Bertrand (CERN) ; Dupuy, Bruno (CERN) ; Gamba, Davide (CERN) ; Joergensen, Lars (CERN) ; Ponce, Laurette (CERN) ; Freyermuth, Pierre (CERN) ; Pasinelli, Sergio (CERN) ; Dutheil, Yann (CERN)
Despite a shorter-than-scheduled physics run due to a hardware problem, the AD/ELENA antiproton complex delivered record beam intensities to the experiments during the 2023 run. This paper reviews the performance of both the CERN Antiproton Decelerator (AD) and the Extra Low ENergy Antiproton (ELENA) decelerator and their associated transfer lines. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) TUPC08 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC08

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