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2025-04-16
20:32
Deep Reinforcement Learning-based Longitudinal Optimization and Control of the Proton Synchrotron Booster at CERN / Kennedy, Lewis (University of Oxford (GB))
This thesis presents the development and implementation of algorithmic methods for au- tomated optimization software in the accelerator control room at CERN. Specifically, the problem of optimizing longitudinal profiles at PSB beam injection for improved luminosity in LHC-type beams is addressed using deep reinforcement learning methods. [...]
CERN-THESIS-2023-438.- Fulltext: PDF; External link: Approve this document (restricted)

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2025-04-16
10:43
Development and Optimization of a Carbon-Nanotube Based Electron Gun / Welker, Elisabeth-Sena (Technische Universitaet Wien (AT))
Field emission (FE)‐based cathodes have become a promising alternative to thermionic sources, which suffer from high transverse energy spread and high power consumption. Here, a carbon‐nanotube (CNT)‐based electron gun was studied as a potential replacement for the thermionic gun currently used in the electron cooler of the Extra Low ENergy Antiproton (ELENA) decelerator at CERN. [...]
CERN-THESIS-2025-032.- Vienna : Technische Universität Wien, 2025-03-18 - 75 p. Fulltext: PDF; External link: Approve this document (restricted)

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2025-04-15
15:07
Impact of Measured Quadrupole Errors in the New Separation Dipoles on the HL-LHC Optics / Dilly, Joschua Werner (CERN) ; Maclean, Ewen Hamish (CERN) ; Tomas Garcia, Rogelio (CERN)
In this study the impact and correctability of the quadrupole field errors, as measured in the newly fabricated separation dipoles for the low-$\beta^*$ insertion regions of the HL-LHC, are evaluated. [...]
CERN-ACC-NOTE-2025-0009. - 2025 - 51.
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2025-04-15
14:54
Impact of Expected Quadrupole Errors in the New Separation Dipoles on the HL-LHC Optics / Dilly, Joschua Werner (CERN) ; Maclean, Ewen Hamish (CERN) ; Tomas Garcia, Rogelio (CERN)
In this study the impact and correctability of the quadrupole field errors, as measured in the newly fabricated separation dipoles for the low-$\beta^*$ insertion regions of the HL-LHC, are evaluated. [...]
CERN-ACC-NOTE-2025-0008. - 2025 - 51.
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2025-04-15
10:58
Improved machine learning models for local optics corrections in the LHC triplet magnets / Kravishvili, Elene
The thesis aims to develop a beam optimization process in LHC, particularly the correction of the triplet magnet at each interaction point [...]
CERN-THESIS-2024-373 -


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2025-04-11
06:30
Transition Crossing by Means of Stable Islands / Wang, Sabrina
The phenomenom of transition energy crossing might generate adverse effects to the quality of charged-particle beams in circular accelerators that is hard to avoid, and has been known to introduce potentially adverse disturbance to the longitudinal dynamics of a beam of charged particles [...]
CERN-THESIS-2023-437 - 53.


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2025-04-11
06:00
II.17 - Physics and accelerators for particle therapy / Schippers, Jacobus Maarten (PSI, Villigen ; UMCG)
At the Paul Scherer Institute (PSI) radiation therapy is performed by means of proton beams. Proton therapy is one of the particle therapies, in which energetic ions (mostly protons and carbon ions) are used to treat cancer patient by irradiating the tumor with high precision. [...]
2024 - 12 p. - Published in : CERN Yellow Rep. School Proc. 3 (2024) 1841-1852 Fulltext: PDF;
In : Proceedings of the Joint Universities Accelerator School (JUAS) : Courses and exercises, Geneva, Switzerland, 27 Nov 2024, pp.1841-1852 (CERN-2024-003)

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2025-04-11
06:00
II.18 - Life-cycle and operability of particle accelerators / Meyroneinc, Samuel (Inst. Curie, Paris)
Particle accelerators are used to generate particle beams for different kinds of use. Operability must be easy and simple for an industrial version with a high Technological Readiness Level (TRL), or complex and critical for large single accelerators designed for new research objectives. [...]
2024 - 16 p. - Published in : CERN Yellow Rep. School Proc. 3 (2024) 1853-1868 Fulltext: PDF;
In : Proceedings of the Joint Universities Accelerator School (JUAS) : Courses and exercises, Geneva, Switzerland, 27 Nov 2024, pp.1853-1868 (CERN-2024-003)

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2025-04-11
04:32
HALHF: a hybrid, asymmetric, linear Higgs factory using plasma- and RF-based acceleration. Backup Document / Adli, Erik (Oslo U.) ; Appleby, Joshua (Oxford U.) ; Barklow, Timothy L. (SLAC) ; Biagini, Marica (Frascati) ; Björklund Svensson, Jonas (Lund U.) ; Berggren, Mikael (DESY) ; Bettoni, Simone (PSI, Villigen) ; Boogert, Stewart (Daresbury) ; Burrows, Philip (Oxford U.) ; Caldwell, Allen (Garching, Max Planck Inst.) et al.
This document expands on the Comprehensive Summary submitted to the EPPSU 2026. [...]
arXiv:2503.23489. - 29.
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2025-04-09
04:34
European Contributions to Fermilab Accelerator Upgrades and Facilities for the DUNE Experiment / DUNE Collaboration
The Proton Improvement Plan (PIP-II) to the FNAL accelerator chain and the Long-Baseline Neutrino Facility (LBNF) will provide the world's most intense neutrino beam to the Deep Underground Neutrino Experiment (DUNE) enabling a wide-ranging physics program. [...]
arXiv:2503.23744 ; FERMILAB-PUB-25-0238-LBNF. - 11.
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