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This new collection aggregates CERN accelerator-related documents on CDS. It will continuously be enriched and improved in the near future.
Latest additions:
2025-07-29
09:13
SPS-Scraper Longitudinal Impedance Simulation and Measurement Report / Bursali, Hikmet (CERN) ; De La Fuente Garcia, Elena (Universidad Politecnica de Madrid (ES)) ; Salvant, Benoit (CERN) ; Vollinger, Christine (CERN)
This report presents the longitudinal impedance mitigation study of the 4th version of SPS Transverse Beam Scraper [...]
CERN-ACC-NOTE-2025-0015. - 2025
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2025-07-25
06:02
Thermal design of an ejector-supported cycle using krypton for cooling of particle detector accelerators / Contiero, Luca (CERN ; Norwegian U. Sci. Tech.) ; Banasiak, Krzysztof (Norwegian U. Sci. Tech. ; SINTEF, Oslo) ; Verlaat, Bart (CERN) ; Hafner, Armin (Norwegian U. Sci. Tech.) ; Försterling, Sven (Unlisted, DE) ; Allouche, Yosr (Norwegian U. Sci. Tech.)
According to the High-Luminosity plan (HL-LHC) the Large Hadron Collider will be upgraded to further extend physics discoveries (2033–2034). The increase of the luminosity is followed by an increase of the radiation damage on the silicon sensors used to detect those particles, which they must be preserved from the thermal runaway after which the sensors reach electrical breakdown. [...]
2025 - 10 p. - Published in : International Journal of Refrigeration 178 (2025) 160-169 Published version: PDF;

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2025-07-25
06:02
Influence of Crystal Fiber Inhomogeneity on the Energy Resolution of a Sampling Electromagnetic Calorimeter / Roux, Louis (CERN ; ILM, Lyon) ; Martinazzoli, Loris (CERN) ; PIzzichemi, Marco (CERN ; Milan Bicocca U.) ; Dujardin, Christophe (IUF, Paris ; ILM, Lyon) ; Auffray, Etiennette (CERN)
Sampling electromagnetic calorimeters (ECALs) are widely used in high-energy physics (HEP) experiments, thanks to their ability to efficiently measure electromagnetic particles’ energy over a broad dynamic range while maintaining good energy resolution. These detectors alternate passive layers made of dense absorber materials, with active layers, such as scintillators. [...]
2025 - 6 p. - Published in : IEEE Trans. Nucl. Sci. 72 (2025) 2076-2081 Published version: PDF;

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2025-07-25
04:07
Detailed Design and Optimization of Ferro-Electric Tuners / Ben-Zvi, Ilan (Stony Brook U.) ; Macpherson, Alick (CERN) ; Smith, Samuel (CERN)
A detailed, step-by-step design methodology of a Ferroelectric Fast Reactive Tuner (FE-FRT) capable of modulating Mega VAR reactive powers on a sub-microsecond time scale is given. [...]
arXiv:2504.19825. - 11.
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2025-07-24
15:39
LGC open-source: A strategy to share adjustment software and algorithmic development / Kautzmann, Guillaume (CERN) ; Gutekunst, Juergen (CERN) ; Klumb, Francis (CERN) ; Elson, Philip (CERN)
LGC (Logiciel Général de Compensation) is a software that computes position estimates and associated statistics based on observations obtained by CERN surveyors. [...]
CERN-ACC-NOTE-2024-0038. - 2024 - 6.
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2025-07-24
15:34
Alignment strategy for the High-Luminosity Large Hadron Collider / Mainaud Durand, Helene (CERN) ; Barbarroux, Vincent Thomas (CERN) ; Behrens, Antje (CERN) ; Bestmann, Patrick (CERN) ; Fuchs, Jean-Frederic (CERN) ; Gayde, Jean-Christophe (CERN) ; Kautzmann, Guillaume (CERN) ; Klumb, Francis (CERN) ; Mergelkuhl, Dirk (CERN) ; Naegely, Anne-Valerie (CERN) et al.
The High Luminosity Large Hadron Collider (HL-LHC) project is an upgrade of the LHC to enable continuous operation at luminosities which are a factor of five above the LHC design value. [...]
CERN-ACC-NOTE-2024-0037. - 2024 - 6.
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2025-07-24
15:29
Development of a new levelling process integrated into a 3D global calculation / Fuchs, Jean-Frederic (CERN) ; Segers, Jean-Francois ; Vendeuvre, Camille (CERN)
CERN surveyors have traditionally used the 2D + 1 method for beamline smoothing, where computing the planimetric (XY) and altimetric (H) data performed independently and separately. [...]
CERN-ACC-NOTE-2024-0036. - 2024 - 7.
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2025-07-24
15:18
Alignment system tests on the CERN remote alignment system mock-up / Sosin, Mateusz (CERN) ; Barbarroux, Vincent Thomas (CERN) ; Biedrawa, Piotr ; Calmels, Julia Anna Jeanne ; Dandekar, Mamta Shrikrishna ; Falcao Machado, Joao Luis ; Fernandez Bautista, Roberto (CERN) ; Herty, Andreas (CERN) ; Kampp, Jonas ; Jasonek, Wojciech (AGH University of Krakow (PL)) et al.
The High Luminosity upgrade of the Large Hadron Collider (HL-LHC) aims to enable continuous operation at luminosities which are a factor of five above the LHC design value. [...]
CERN-ACC-NOTE-2024-0035. - 2024 - 8.
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2025-07-24
15:10
A next generation survey train for future accelerators / Bestmann, Patrick (CERN) ; Barcet, Florian ; Mergelkuhl, Dirk (CERN)
The increasing dimensions and constraints for next- generation accelerators are driving the development of new methods and strategies for automated alignment measurements [...]
CERN-ACC-NOTE-2024-0034. - 2024 - 5.
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2025-07-24
15:06
Internal monitoring of the HL-LHC components / Rude, Vivien (CERN) ; Mainaud Durand, Helene (CERN) ; Barbarroux, Vincent Thomas (CERN) ; Bestmann, Patrick (CERN) ; Calmels, Julia Anna Jeanne ; Petrone, Carlo (CERN) ; Noir, Michel (CERN) ; Pentella, Mariano (CERN) ; Sarvade, Praneeth ; Sosin, Mateusz (CERN)
The High-Luminosity Large Hadron Collider (HL-LHC) project at CERN aims to enhance the LHC’s performance and expand its potential for discoveries beyond 2029 [...]
CERN-ACC-NOTE-2024-0033. - 2024 - 7.
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