CERN Accelerating science

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2021-06-09
06:17
Evaluation of Timing and Synchronization Techniques on NI CompactRIO Platforms / Andreassen, Odd ; Charrondière, Cedric ; Develle, Kevin ; Rossel, Ralf ; Zilliox, Thomas
For distributed data acquisition and control system, clock synchronization between devices is key. [...]
2019. - 4 p.

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2021-06-09
06:17
Anomaly Detection for CERN Beam Transfer Installations Using Machine Learning / Dewitte, Thiebout (Leuven U.) ; Meert, Wannes (Leuven U.) ; Van Trappen, Pieter (CERN) ; Van Wolputte, Elia (Leuven U.)
Reliability, availability and maintainability determine whether or not a large-scale accelerator system can be operated in a sustainable, cost-effective manner. [...]
2019. - 5 p.

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2021-06-01
06:15
Gamma Factory for CERN initiative - progress report / Dutheil, Yann (CERN) ; Abramov, Andrey (Royal Holloway, U. of London) ; Alden, Siobhan (Royal Holloway, U. of London) ; Alemany Fernandez, Reyes (CERN) ; Antsiferov, Pavel (Troitsk, IZMIRAN) ; Apyan, Armen (NAS Armenia, Yerevan) ; Bartosik, Hannes (CERN) ; Bessonov, Evgeny (Lebedev Inst.) ; Biancacci, Nicolo (CERN) ; Bieron, Jacek (Jagiellonian U.) et al.
The Gamma Factory (GF) initiative proposes to use partially stripped ion (PSI) beams as drivers of a new type of high-intensity and high-energy (0.1–400 MeV) photon source. As part of the ongoing Physics Beyond Collider studies, initial beam tests were carried out in 2017 and 2018 at the SPS and LHC with partially stripped xenon and lead beams [...]
SISSA, 2020 - 10 p. - Published in : PoS EPS-HEP2019 (2020) 020 Fulltext from publisher: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.020

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2021-05-29
09:01
Quench Protection Studies for the High Luminosity LHC Nb$_3$Sn Quadrupole Magnets / Ravaioli, Emmanuele (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bajas, Hugues (CERN) ; Duda, Michal (PSI, Villigen ; CERN) ; Ferracin, Paolo (LBNL, Berkeley) ; Ferradas Troitino, Jose (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Mangiarotti, Franco (CERN) ; Marinozzi, Vittorio (Fermilab) ; Mentink, Matthias (CERN) et al.
Achieving the targets of the High Luminosity LHC project requires the installation of new inner triplet magnet circuits for the final focusing of the particle beams on each side of the two main interaction points. Each of the four circuits will include six 150 mm aperture, 132.2 T/m gradient, Nb$_3$Sn quadrupole magnets to be installed in the LHC tunnel. [...]
FERMILAB-PUB-21-124-TD.- 2021 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4700405 Fulltext from Publisher: PDF;

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2021-05-27
06:27
Characterization of the beam scraping system of the CERN Super Proton Synchrotron / Mereghetti, Alessio (CERN) ; Cerutti, Francesco (CERN) ; Appleby, Robert B (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.)
The Super Proton Synchrotron at CERN is equipped with a scraping system for halo cleaning at beam transfer to the Large Hadron Collider. The system is composed of movable graphite blades mechanically swept through the beam to remove tails immediately before beam transfer. [...]
2021 - 16 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 043002 Fulltext from Publisher: PDF;

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2021-05-20
11:14
Integrating IoT Devices Into the CERN Control and Monitoring Platform / Copy, Brice (CERN) ; Bräger, Matthias (CERN) ; Papageorgiou Koufidis, Alexander (CERN) ; Piselli, Emiliano (CERN) ; Prieto Barreiro, Ivan (CERN)
The CERN Control and Monitoring Platform (C2MON) offers interesting features required in the industrial controls domain to support Internet of Things (IoT) scenarios. [...]
2019. - 4 p.
Fulltext

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2021-05-08
18:18
Beam Loss Reduction by Barrier Buckets in the CERN Accelerator Complex / Vadai, Mihaly
For a future intensity increase of the fixed-target beam in the accelerator complex at CERN, new techniques to reduce beam loss are required [...]
CERN-THESIS-2021-043 -

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2021-05-05
15:25
Considerations for a RF separated K+ beam for NA62 / Appleby, Robert Barrie (University of Manchester (GB)) ; Bernhard, Johannes (CERN) ; Dainton, John Bourke (Lancaster University (GB)) ; Gatignon, Lau (Lancaster University (GB)) ; Goudzovski, Evgueni (University of Birmingham (GB)) ; Burton, Graeme Alan ; Jones, Rhodri (CERN) ; Lazzeroni, Cristina (University of Birmingham (GB)) ; Romano, Angela (University of Birmingham (GB)) ; Ruggiero, Gennaro et al.
In this document we assess the potential of RF separation to increase the kaon content of the high-intensity secondary beam to the NA62 experiment in the CERN North Area. [...]
CERN-ACC-NOTE-2021-0013.
- 2021. - 38 p.
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2021-05-04
17:49
Simulation Analysis and Machine Learning Based Detection of Beam-Induced Heating in Particle Accelerator at CERN / Giordano, Francesco
A method for a first-order approximation estimation of the longitudinal impedance of a synchrotron component, starting from power loss measurements on the device, is proposed [...]
CERN-THESIS-2020-332 -

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2021-04-22
12:04
A pulsed high-voltage decelerator system to deliver low-energy antiprotons / Husson, A (IJCLab, Orsay) ; Kim, B H (Seoul Natl. U., Dept. Phys. Astron.) ; Welker, A (CERN) ; Charlton, M (Swansea U.) ; Choi, J J (Seoul Natl. U., Dept. Phys. Astron.) ; Chung, M (UNIST, Ulsan) ; Cladé, P (Paris, Lab. Kastler Brossel) ; Comini, P (IRFU, Saclay) ; Crépin, P -P (Paris, Lab. Kastler Brossel) ; Crivelli, P (Zurich, ETH-CSCS/SCSC) et al.
The GBAR (Gravitational Behavior of Antihydrogen at Rest) experiment at CERN requires efficient deceleration of 100 keV antiprotons provided by the new ELENA synchrotron ring to synthesize antihydrogen. This is accomplished using electrostatic deceleration optics and a drift tube that is designed to switch from -99 kV to ground when the antiproton bunch is inside – essentially a charged particle “elevator” – producing a 1 keV pulse. [...]
2021 - 7 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1002 (2021) 165245

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