CERN Accelerating science

Accelerator Physics

Darreres entrades:
2025-02-19
15:15
LHC Effective Model for Optics Corrections
This thesis investigates the crucial role of higher-order magnetic fields and non-linear optics in the stability and performance of particle accelerators, focusing on the Large Hadron Collider (LHC) at CERN [...]
CERN-THESIS-2024-336 - 250.


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2025-02-18
06:48
Verification of electron beam alignment and optics for external off-axis injection in AWAKE Run 2b / van Gils, Nikita Z (CERN ; Groningen, KVI) ; Turner, Marlene (CERN) ; Bencini, Vittorio (CERN ; JAI, UK) ; Bergamaschi, Michele (CERN ; Munich, Max Planck Inst.) ; Ranc, Lucas (Munich, Max Planck Inst.) ; Pakuza, Collette (CERN) ; Pannell, Fern (U. Coll. London) ; Della Porta, Giovanni Zevi (CERN) ; Velotti, Francesco (CERN) ; Gerbershagen, Alexander (Groningen, KVI) et al.
The Advanced Wakefield Experiment (AWAKE) has the long term goal to accelerate electrons to particle physics relevant energies using self-modulated proton bunches as drivers in plasma. AWAKE is currently in its Run 2b (2023–2025), where the goal is to stabilise the wakefield amplitude after the saturation of the self-modulation process by introducing a plasma density step. [...]
2025 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1072 (2025) 170204 Fulltext: PDF;

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2025-02-18
06:48
Local chromatic correction optics for Future Circular Collider e+e− / Raimondi, Pantaleo (Fermilab) ; Liuzzo, Simone Maria (LPMMC, Grenoble) ; Farvacque, Laurent (LPMMC, Grenoble) ; White, Simon (LPMMC, Grenoble) ; Hofer, Michael (CERN)
Local chromatic correction optics are proposed for the Future Circular e+−e− Collider. These new optics assume an identical layout of the magnets at all operation energies and include a new design for the arcs, for the straight sections, and for the final focus. [...]
FERMILAB-PUB-25-0096-PIP2.- 2025 - 18 p. - Published in : Phys. Rev. Accel. Beams 28 (2025) 021002 Fulltext: PDF;

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2025-02-13
14:26
MAGNET SYSTEM DESIGN FOR THE HELIUM LIGHT ION COMPACT SYNCHROTRON / Flier, Gerrit (Universiteit Twente (NL))
This thesis presents the development and optimization of the magnet system for the He- lium Light Ion Compact Synchrotron (HeLICS), which aims to advance helium ion therapy for cancer treatment. [...]
CERN-ACC-NOTE-2024-0026 ; NIMMS-Note-023.
- 2024 - 72.

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2025-02-11
17:53
Overview of the FCC-ee beam instrumentation R / Mazzoni, Stefano (CERN) ; Boccardi, Andrea (CERN) ; Schloegelhofer, Andreas (CERN) ; Nosych, Andriy (CELLS - ALBA, LLS) ; Mueller, Anke-Susanne (KIT, Karlsruhe) ; Haerer, Bastian (KIT, Karlsruhe) ; Salvachua, Belen (CERN) ; Paroli, Bruno (U. Milan (main)) ; Zamantzas, Christos (CERN) ; Butti, Daniele (CERN) et al.
The talk shall present an overview of the FCC beam instrumentation needs, the corresponding main challenges. This will review the different R&D; activities being currently pursued, including Beam position and loss monitoring, Transverse and longitudinal monitoring systems as well as polarimetry and luminosity monitoring..
2024 - 4 p. - Published in : JACoW IBIC 2024 (2024) TUAC2 Fulltext: PDF;
In : 13th International Beam Instrumentation Conference (IBIC 2024), Beijing, China, 9-13 Sep 2024, pp.TUAC2

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2025-02-08
09:25
A systematic investigation of beam losses and position reconstruction techniques measured with a novel oBLM at CLEAR / King, Montague (CERN ; Liverpool U.) ; Christie, Alexander (Oxford U.) ; Salvachua, Belen (CERN) ; Welsch, Carsten (Liverpool U.) ; Effinger, Ewald (CERN) ; Meyer, Jean Michel (CERN) ; Esteban Felipe, Jose (CERN) ; Wolfenden, Joseph (Cockcroft Inst. Accel. Sci. Tech.) ; Korysko, Pierre (Oxford U.) ; Benitez, Sara (CERN) et al.
Optical Beam Loss Monitors (oBLMs) allow for cost-efficient and spatially continuous measurements of beam losses at accelerator facilities. A standard oBLM consists of several tens of meters of optical fibre aligned parallel to the beamline, coupled to photosensors at either or both ends. [...]
2024 - 5 p. - Published in : JACoW IBIC 2024 (2024) FRBC2 Fulltext: PDF;
In : 13th International Beam Instrumentation Conference (IBIC 2024), Beijing, China, 9-13 Sep 2024, pp.FRBC2

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2025-02-07
17:47
An overview of progress with the study of a structured laser beam for alignment / Niewiem, Witold Grzegorz (ETH Zurich (CH)) ; Mergelkuhl, Dirk (CERN) ; Gayde, Jean-Christophe (CERN)
The Structured Laser Beam (SLB) is a pseudo-non- diffractive optical beam characterized by the low divergence of the Inner Core (IC), down to 10 μrad, and the presence of concentric rings, with the most prominent being the Outer Ring (OR). [...]
CERN-ACC-NOTE-2024-0025.
- 2024 - 6.

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2025-02-07
11:07
Appendix - PPbar beam parameter list. Beam parameters for the basic scheme
CERN-SPS-AC-79-18-Appendix - 1979 - 8.

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2025-02-07
04:25
Imperfections and corrections / Tomás, R. (CERN) ; Buffat, X. (CERN) ; Coello, J. (CERN) ; Fol, E. (CERN) ; Malina, L. (CERN)
The measurement and correction of optics parameters has been a major concern since the advent of strong focusing synchrotron accelerators. [...]
arXiv:2006.10661.
- 31.
Fulltext

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2025-02-06
08:13
Prototypes and R&D; for undulator-based positron sources / Moortgat-Pick, Gudrid (Hamburg U. ; DESY) ; Formela, Manuel (Hamburg U.) ; Hamann, Niclas (Hamburg U.) ; Lengler, Tim (HZDR, Dresden) ; Lott, Dieter (HZDR, Dresden) ; Loisch, Gregor (DESY) ; Riemann, Sabine (DESY, Zeuthen) ; Sievers, Peter (CERN) ; Tenholt, Carmen (DESY) ; Yakopov, Grigory (DESY)
The undulator-based positron source is baseline design for the ILC. Recent progress in particular on the undulator mask designs, optic matching devices (R&D; for prototypes for pulsed solenoid, plasma lens) and on the target design (rotating wheel, material tests) are discussed. [...]
2024 - 9 p. - Published in : EPJ Web Conf. 315 (2024) 02002 Fulltext: PDF;
In : International Workshop on Future Linear Colliders (LCWS2024), Tokyo, Jp, 8 Jul - 8 Nov 2024, pp.02002

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