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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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2024-11-07
04:49
MuCol Milestone Report No. 5: Preliminary Parameters / MuCoL Collaboration
This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. [...]
arXiv:2411.02966. -
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2024-11-06
14:12
Future Ions in the CERN Accelerator Complex WG: Post-LS3 NA61/SHINE light ion beam requirements feasibility study: source operation, radiation protection impact in LINAC 3, LEIR and PS and risk assessment in LEIR / Alemany Fernandez, Reyes (CERN) ; Chapuis, Didier (CERN) ; Kuchler, Detlef (CERN) ; Lang, Thibaut Michael (CERN) ; Morand, Boris (CERN) ; Slupecki, Maciej (Helsinki Institute of Physics (FI)) ; Widorski, Markus (CERN)
The NA61/SHINE experiment is approved until Long Shutdown 3 [...]
CERN-ACC-NOTE-2024-0020. - 2024
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2024-11-05
12:49
Suppressing pile-up contributions in the formation of topological clusters in ATLAS / Fazzino, Giulia
The production of particles in secondary proton-proton collisions, known as pile-up, is a phenomenon which affects the measurements performed in high-luminosity particle colliders, such as the LHC. This work explores the possibility of using deep neural networks to mitigate pile-up contributions to the measured energy of topoclusters in the ATLAS experiment, studying clusters from simulated Run 2 and Run 3 events [...]
CERN-THESIS-2024-222.- Fulltext: PDF; External link: Approve this document (restricted)

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2024-10-31
17:26
Slow Extraction: Upgrades for Next Ion Medical Machines at FLASH timescales / Taylor, Rebecca
Slow resonant extraction is the control of resonant beams to extract a continuous rate of particles from the accelerator, over seconds [...]
CERN-THESIS-2024-218 - London : Spiral, 2024-11-01 - 214.


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2024-10-31
12:12
The Universe in a Cake! A Dark Matter Cake Recipe & Explainer / Leney, Katharine (Southern Methodist University (US))
This handout includes a cake recipe and an explainer about the composition of the universe — covering visible matter, dark matter, and dark energy. [...]
ATLAS-OUTREACH-2024-026. - 2024 - 3.
Language: English

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2024-10-31
06:04
High voltage consolidation of the temperature measurement channels of the LHC superconducting current leads / Trikoupis, N (CERN) ; Casas-Cubillos, J (CERN) ; Bustamante, E (CERN)
Recurrent dielectric breakdowns on the cryogenics instrumentation during the CERN LHC Electrical Quality Assurance (ELQA) campaigns led to an investigation of their root causes. During the CERN Long Shutdown 2 (LS2), several weaknesses were identified like floating wires or cable screens, cabling non-conformities, connector assembly issues, and weakness of the electronic conditioning cards. [...]
2023 - 8 p. - Published in : JINST 18 (2023) C02010
In : Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C02010

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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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2024-10-30
15:31
LHC Availability Report 2023 / Felsberger, Lukas (CERN) ; Asko, Anti (CERN) ; Heron, Jack (CERN) ; Hostettler, Michi (CERN) ; Mikulec, Bettina (CERN) ; Uythoven, Jan (CERN) ; Wollmann, Daniel (CERN)
This document summarises the LHC availability during 2023 and compares it to previous years. [...]
CERN-ACC-NOTE-2024-0019. - 2024 - 22.
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