CERN Accelerating science

All CERN Accelerators documents

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2024-04-18
12:07
Experimental optimisation of CERN 750MHz proton Radio-Frequency-Quadrupole for Surface Analysis / Marchi, Mariangela (Sapienza Universita e INFN, Roma I (IT))
The present thesis deals with the experimental optimisation of an accelerating structure named ELISA-RFQ. All the experimental work was carried out by the author at the CERN laboratories in Geneva, Switzerland. [...]
CERN-THESIS-2023-384.- 60 p. Fulltext: PDF; External link: Approve this document (restricted)

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2024-04-16
15:04
Evaluation of Different Methods for Runtime Optimization of Longitudinal Phase Space Tomography / Abreu Figueiredo, Bernardo
In order to measure the parameters, and therefore the quality, of the particle beam in the CERN synchrotrons, various methods are used for beam diagnostics [...]
CERN-THESIS-2024-033 - 116 p.


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2024-04-16
11:56
Corrections of high-order nonlinearities in the LHC and High-Luminosity LHC beam optics / Dilly, Joschua Werner
The impact of high-order nonlinear magnetic field errors on the performance of the Large Hadron Collider (LHC) and its planned High-Luminosity upgrade, the HL-LHC, has been extensively studied [...]
CERN-THESIS-2023-382 DOI:10.18452/28273. - Berlin : Humboldt-Universität zu Berlin, 2024-03-01. - 233 p.


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2024-04-16
06:50
Effects of cavity pre-detuning on RF power transients at injection into the LHC / Karlsen-Baeck, B E (CERN ; Rome U.) ; Argyropoulos, T (CERN) ; Butterworth, A (CERN) ; Calaga, R (CERN) ; Karpov, I (CERN) ; Timko, H (CERN) ; Zampetakis, M (CERN)
At injection into the Large Hadron Collider (LHC), the radiofrequency (RF) system is perturbed by beam-induced voltage resultingin strong RF power transients and the instant detuning of thecavities. The automatic tuning system, however, needs time for themechanical compensation of the resonance frequency to takeplace. [...]
2024 - 8 p. - Published in : JINST 19 (2024) T04005 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.T04005

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2024-04-16
06:50
Python Expert Applications for Large Beam Instrumentation Systems at CERN / Martínez Samblas, Javier (CERN) ; Calvo Giraldo, Eva (CERN) ; Gonzalez-Berges, Manuel (CERN) ; Krupa, Michal (CERN)
In recent years, beam diagnostics systems with increasingly large numbers of monitors, and systems handling vast amounts of data have been deployed at CERN. Their regular operation and maintenance poses a significant challenge. [...]
2023 - 5 p. - Published in : JACoW ICALEPCS 2023 (2023) THPDP061 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.THPDP061

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2024-04-16
06:50
Selecting a Linux Operating System for CERN Accelerator Controls / Radeva, Anastasiya (CERN) ; Elyn, Jean-Michel (CERN) ; Locci, Frank (CERN) ; Oulevey, Thomas (CERN) ; Vanden Eynden, Marc (CERN)
Changing the operating system (OS) for large heterogeneous infrastructures in the research domain is complex. It requires great effort to prepare, migrate and validate the common generic components, followed by the specific corner cases [...]
2023 - 5 p. - Published in : JACoW ICALEPCS 2023 (2023) THPDP064 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.THPDP064

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2024-04-16
06:50
Interlock Super Agent : Enhancing Machine Efficiency and Performance at CERN’s Super Proton Synchrotron / Veyrunes, Eric (CERN) ; Asko, Anti (CERN) ; Trad, Georges (CERN) ; Wenninger, Jorg (CERN)
In the CERN Super Proton Synchrotron (SPS), finding the source of an interlock signal has become increasingly unmanageable due to the complex interdependencies between the agents in both the beam interlock system (BIS) and the software interlock system (SIS). This often leads to delays, with the inefficiency in diagnosing beam stops impacting the overall performance of the accelerator. [...]
2023 - 3 p. - Published in : JACoW ICALEPCS 2023 (2023) TUPDP103 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP103

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2024-04-16
06:50
Integration of an MPSoC-based acquisition system into the CERN control system / Balci, Elif (CERN) ; Degl'Innocenti, Irene (CERN) ; Gonzalez-Berges, Manuel (CERN) ; Jackson, Stephen (CERN) ; Krupa, Michal (CERN)
Future generations of Beam Instrumentation systems will be based on Multiprocessor System on Chip (MPSoC) technology. This new architecture will allow enhanced exploitation of instrumentation signals from CERN’s accelerator complex, and has thus been chosen as the next platform for several emerging systems. [...]
2023 - 6 p. - Published in : JACoW ICALEPCS 2023 (2023) TUMBCMO22 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUMBCMO22

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2024-04-16
04:38
A decomposition algorithm for streak camera data / Oguzhan, Kaan (Munich, Max Planck Inst.) ; Ranc, Lucas (Munich, Max Planck Inst.) ; Verra, Livio (CERN) ; Caldwell, Allen (Munich, Max Planck Inst.)
We describe a novel reconstruction algorithm for time-resolved images obtained using a streak camera. This algorithm operates by decomposing a recorded image into a set of individual photoelectron-induced signals, thereby providing a powerful method for streak camera image reconstruction. [...]
arXiv:2401.12269.- 2024-04-05 - 18 p. - Published in : JINST 19 (2024) P04005 Fulltext: 2401.12269 - PDF; Publication - PDF;

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2024-04-16
04:38
Optimizing dynamic aperture studies with active learning / Di Croce, D. (EPFL, Lausanne, FSL) ; Giovannozzi, M. (CERN) ; Krymova, E. (Zurich, ETH) ; Pieloni, T. (EPFL, Lausanne, FSL) ; Redaelli, S. (CERN) ; Seidel, M. (EPFL, Lausanne, FSL ; PSI, Villigen) ; Tomás, R. (CERN) ; Van der Veken, F.F. (CERN)
Dynamic aperture is an important concept for the study of non-linear beam dynamics in circular accelerators. It describes the extent of the phase-space region where a particle's motion remains bounded over a given number of turns. [...]
arXiv:2402.11077; JINST_168P_1223.- 2024-04-04 - 14 p. - Published in : JINST 19 (2024) P04004 Fulltext: 2402.11077 - PDF; Publication - PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.P04004

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