CERN Accelerating science

BE Papers

Latest additions:
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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2024-10-16
09:18
The status of the FCC-ee optics tuning / van Riesen-Haupt, Léon (Ecole Polytechnique, Lausanne) ; Franchi, Andrea (ESRF, Grenoble) ; Faus-Golfe, Angeles (IJCLab, Orsay) ; Chance, Antoine (Paris, CEA) ; Dalena, Barbara (Paris, CEA) ; Järmyr Eriksson, Carl (CERN) ; Carli, Christian (CERN) ; Garcia Jaimes, Cristobal Miguel (Ecole Polytechnique, Lausanne) ; Shatilov, Dmitry (CERN) ; Musa, Elaf (DESY) et al.
With a circumference of approximately 91 km, the Future Circular electron-positron Collider, FCC-ee, aims for unprecedented luminosities at beam energies from 45.6 to 182.5 GeV. A major challenge is reaching its design performance in the presence of magnet misalignments and field errors. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) WEPR02 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPR02

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2024-01-29
21:15
Measurement for the $e^+$ beam purity at the CERN-SPS H8 beamline / Bisio, Pietro (INFN e Universita Genova (IT)) ; Celentano, Andrea (INFN e Universita Genova (IT)) ; Marsicano, Luca (INFN e Universita Genova (IT)) ; Bondi, Mariangela (INFN e Laboratori Nazionali di Frascati (IT)) ; Marini, Anna (INFN e Universita Genova (IT))
This Note describes the $e^+$-beam purity measurement for the H8 beamline of the Super Proton Synchrotron (SPS) at CERN. This study was performed in the context of the POKERINO prototype characterization, conducted during a week of measurements in the summer of 2023 at the H8 beamline. [...]
CERN-OPEN-2024-002; POKER-NOTE-23-12.- Geneva : CERN, 2024 - 4 p. Preprint: PDF; External link: Approve this document (restricted)

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2023-03-07
08:40
Vertical Shape determination of a stretched wire from oscillation measurements / Fleig, Luisa Fabiola (Technische Universitaet Darmstadt (DE)) ; Herty, Andreas (CERN)
The Geodetic Metrology group at CERN uses stretched wires as a reference for the position monitoring and alignment of accelerator components. [...]
CERN-BE-2023-017.
- 2022. - 1 p.
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2023-02-15
10:07
Measurement and alignment of the TIDVG5 SPS beam dump / Vendeuvre, Camille (CERN) ; Bestmann, Patrick (CERN) ; Barcet, Florian
During the Long Shutdown 2 (LS2 2018-2021) the CERN injector complex was upgraded to meet the future High Luminosity-Large Hadron Collider (HL-LHC) re- quirements [...]
CERN-BE-2023-016.
- 2022. - 6 p.
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2023-02-15
10:04
SurveyPad, a common interface to Geode & data processing tools / Lewandowski, Przemyslaw (CERN) ; Ducceschi, Remi ; Klumb, Francis (CERN)
The metrology and alignment of components installed in accelerators is a very complicated process requiring many calculations to ensure the best performance of the CERN complex. [...]
CERN-BE-2023-015.
- 2022. - 6 p.
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2023-02-15
09:58
Structured laser beam in non-homogeneous environment / Polak, Krystof (Liberec Technical University (CZ)) ; Gayde, Jean-Christophe (CERN) ; Sulc, Miroslav (Liberec Technical University (CZ))
This article summarizes part of the research related to the structured laser beam (SLB) properties focused on align- ment. [...]
CERN-BE-2023-014.
- 2022 - 7.
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2023-02-15
09:29
Introduction to Structured laser beam for alignment and status of the R&D / Gayde, Jean-Christophe (CERN) ; Polak, Krystof (Liberec Technical University (CZ)) ; Sulc, Miroslav (Liberec Technical University (CZ))
A new method of generating a Structured Laser Beam (SLB) has been proposed recently. [...]
CERN-BE-2023-013.
- 2022. - 7 p.
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2023-02-15
09:25
Detection of structured laser beam centroid and its use for alignment / Dusek, Martin (Liberec Technical University (CZ)) ; Polak, Krystof (Liberec Technical University (CZ)) ; Gayde, Jean-Christophe (CERN) ; Sulc, Miroslav (Liberec Technical University (CZ)) ; Mergelkuhl, Dirk (CERN) ; Niewiem, Witold Grzegorz (ETH Zurich (CH))
A Structured Laser Beam (SLB) [1] is a pseudo-non- diffractive optical beam. [...]
CERN-BE-2023-012.
- 2022. - 5 p.
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2023-02-15
09:21
A quality assurance approach for the Full Remote Alignment System / Herty, Andreas (CERN) ; Dandekar, Mamta Shrikrishna (CERN) ; Fleury, Sarah Agathe (CERN) ; Naegely, Anne Valerie (CERN) ; Rude, Vivien (CERN) ; Sosin, Mateusz (CERN)
The Full Remote Alignment System is a multi-sensor monitoring and alignment system for the position de- termination and adjustment of accelerator components in the High-Luminosity Large Hadron Collider. [...]
CERN-BE-2023-011.
- 2022. - 6 p.
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