CERN Accelerating science

CERN Published Articles

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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
Measurement of the prompt fission $\gamma $-rays from slow neutron-induced fission of $^{235}$U with STEFF / n_TOF Collaboration
The average energy and multiplicity of prompt $\gamma $-rays from slow neutron-induced fission of $^{235}$U have been measured using the STEFF spectrometer at the neutron time-of-flight facility n_TOF. The individual responses from 11 NaI scintillators were corrected for multiple $\gamma $-ray interactions, prompt fission neutrons and background counts before being deconvolved to estimate the emitted spectrum of prompt fission $\gamma $-rays. [...]
2024 - 11 p. - Published in : Eur. Phys. J. A 60 (2024) 70 Fulltext: PDF;

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2024-04-16
06:50
Time-of-Flight System for Particle Identification in the NA61/SHINE Experiment in CERN / Babkin, V A (Dubna, JINR) ; Buzin, S G (Dubna, JINR) ; Burdyko, A S (Dubna, JINR) ; Buryakov, M G (Dubna, JINR) ; Golovatyuk, V M (Dubna, JINR) ; Daribaeva, A (Dubna, JINR) ; Dmitriev, A V (Dubna, JINR) ; Dubinchik, B V (Dubna, JINR) ; Dulov, P O (Dubna, JINR ; Plovdiv U.) ; Zaitsev, A A (Dubna, JINR) et al.
A new time-of-flight (ToF) system of the NA61/SHINE hadron spectrometer at the extracted beam of the Super Hadron Synchrotron in CERN has been developed in 2019–2022 by the staff of the Laboratory of High-Energy Physics of the Joint Institute for Nuclear Research. The new ToF system is based on Multigap Resistive Plate Chambers (MRPCs) technology. [...]
2024 - 10 p. - Published in : Phys. Part. Nucl. Lett. 21 (2024) 121-130

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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
Commissioning and first measurements with LHC collisions of BIS78 RPCs, an innovative detector for ATLAS HL-LHC upgrades / Simsek, Sinem (Istinye U., Istanbul) /ATLAS Muon Collaboration
The BIS78 project, BI pilot project, consists of 16 sMDT + RPC chambers installed in the barrel–endcap transition region with the function of helping in the reduction of the fake muons produced upstream of the cryostats. The BIS78 RPCs represents a new generation of RPCs, basing their largely improved performance on a novel and highly performing front-end (FE) electronics, which is able to detect 1-2 fC of induced signals increasing rate capability by a factor of 10 with respect to the present ATLAS RPCs. [...]
2024 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1063 (2024) 169298
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.169298

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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
06:50
Long-lived particle decays at the proposed MATHUSLA experiment / Curtin, David (Toronto U.) ; Grewal, Jaipratap Singh (Toronto U.)
We carefully study the decay and reconstruction of long-lived particle (LLP) decays in the proposed MATHUSLA LLP detector for the HL-LHC. Our investigations are focused on three LLP benchmark models. MATHUSLA’s primary physics target is represented by hadronically decaying LLPs with mass above ∼10  GeV, produced in exotic Higgs decays. [...]
2024 - 18 p. - Published in : Phys. Rev. D 109 (2024) 075017 Fulltext: PDF;

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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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