CERN Accelerating science

All CERN Accelerators documents

Ostatnio dodane:
2026-02-26
07:31
Post long shutdown 2 CERN proton synchrotron transverse impedance model: Description and beam-based validation / Joly, Sébastien (U. Rome La Sapienza (main)) ; Migliorati, Mauro (INFN, Rome) ; Mounet, Nicolas (CERN) ; Salvant, Benoît (CERN)
In the framework of the LHC Injectors Upgrade project, the CERN Proton Synchrotron underwent hardware changes during the Long Shutdown 2. These changes required an update of the CERN Proton Synchrotron impedance model and an assessment of their impact on beam quality. [...]
arXiv:2505.09328.- 2026 - 19 p. - Published in : Phys. Rev. Accel. Beams 29 (2026) 024201 Fulltext: 2505.09328 - PDF; document - PDF;

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2026-02-25
16:33
Environmental Measurements in the Sedrun Access Shaft to the Gotthard Base Tunnel - a Promising Site for a Long-Baseline Atom Interferometer / Guinchard, Michael (CERN) ; Buchmuller, Oliver (Imperial College (GB)) ; Calatroni, Sergio (CERN) ; Ellis, Jonathan R. (University of London (GB)) ; Hoell, Stefan (CERN) ; Jaussi, Michael (CERN) ; Lombriser, Lucas (University of Applied Sciences of the Grisons) ; Pentella, Mariano (CERN) ; Thuliez, David Claude (CERN) ; Valuch, Daniel (CERN)
Atom interferometer (AI) experiments offer interesting prospects for searches for the interactions of ultralight bosonic dark matter with Standard Model particles as well as detection of gravitational waves in a frequency band inaccessible to experiments that are operating or under construction. Ideal locations for the next generation of such experiments are provided by long vertical shafts, such as that providing access to the Gotthard base railway tunnel from the Sedrun locality in the Canton Grisons of Switzerland. [...]
CERN-PBC-Notes-2026-001.- Geneva : CERN, 2026

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2026-02-25
06:55
Superconducting Accelerator Magnets / Sanfilippo, Stephane (PSI, Villigen)
This course introduces key aspects of superconducting magnet technology in accelerators: basic principles, superconducting materials (NbTi, Nb$_3$Sn, ReBCO), wire and cable architectures, and fabrication methods. [...]
arXiv:2602.19830.
- 2026 - 35.
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2026-02-25
06:55
Modelling Conduction Cooling of Superconducting Accelerator Magnets using a Thermal Thin Shell Approximation / Vancayseele, Emma (Leuven U.) ; Schnaubelt, Erik (CERN) ; Denis, Louis (Liege U.) ; Geuzaine, Christophe (Liege U.) ; Verweij, Arjan (CERN) ; Wozniak, Mariusz (CERN)
Understanding the thermal behaviour of superconducting accelerator magnets is essential to ensure stable and reliable operation. [...]
arXiv:2602.08648.
- 2026 - 10.
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2026-02-25
06:55
Standards and Safety: an Overview / Dassa, Luca (CERN)
This note is intended to provide an overview of the implications of regulations and standards on the safety of mechanical equipment, with a focus on accelerator components. [...]
arXiv:2602.17173.
- 2026 - 17.
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2026-02-25
06:55
Conventional Accelerator Magnets / Sanfilippo, Stephane (PSI, Villigen)
This course introduces conventional magnets used in particle accelerators, focusing on both normal-conducting copper coil magnets and permanent magnets (PMs). [...]
arXiv:2602.19808.
- 2026 - 28.
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2026-02-20
06:25
A “20 T at 20 K” Model Coil for the Muon Collider Target Solenoid and Fusion Applications / Bottura, Luca (CERN) ; Bordini, B (CERN) ; Catellani, M (CERN) ; Losito, R (CERN) ; Trotta, A (Eni S.p.A., Italy) ; De Bastiani, M (Eni S.p.A., Italy) ; Indrigo, D (Eni S.p.A., Italy) ; De Marchi, E (Eni S.p.A., Italy) ; Gallo, E (Eni S.p.A., Italy) ; Spagnuolo, A (Eni S.p.A., Italy) et al.
The development of high-field, large-bore magnets based on High-Temperature Superconductors (HTS) is a strategic challenge with impact across high-energy physics, fusion energy, and other scientific and societal applications. In particular, the target decay and capture solenoid for the Muon Collider and the central solenoid of next-generation fusion devices both demand solenoids capable of producing a 20 T peak field in a bore larger than 1 m, at 20 K, with stored energy exceeding 300 MJ (single coil). [...]
2026 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 36 (2026) 1-8 Fulltext: PDF;

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2026-02-20
06:25
Impedance Characterization of a HL-LHC Nb 3 Sn MQXFS Model Magnet During Powered Operation at Nominal Current / Christensen, Magnus BøghBorregaard (CERN ; Aalborg U.) ; Bednarek, Mateusz Jakub (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Denz, Reiner (CERN) ; Feuvrier, Jerome (CERN) ; Haziot, Ariel (CERN) ; Janitschke, Marvin (CERN) ; Koch, Peter (Aalborg U.) ; Ludwin, Jaromir (Cracow, INP) ; Mangiarotti, Franco (CERN) et al.
Impedance measurements have long been used to study superconducting magnets in their non-energized state, providing valuable insights into their electromagnetic behaviour. However, studies involving powering have primarily been conducted at low currents, due to the impact of the power converter impedance on the measurement. [...]
2026 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 36 (2026) 1-7 Fulltext: PDF;

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2026-02-20
06:25
Primary vertex time reconstruction using the LHCb RICH detectors / Keizer, F (CERN) ; Malentacca, L (CERN ; Milan Bicocca U.) ; Upadhyay, A (CERN ; Geneva U.) /LHCb RICH Collaboration
The LHCb RICH detectors will introduce timing information O(100 ps) for each detected photon during LHC Run 4. Using the RICH time information, the primary vertex time (PV t0) can be estimated for the first time in LHCb, which is a key input parameter for exploiting fast-timing techniques in the experiment. [...]
2026 - 6 p. - Published in : 10.1016/j.nima.2026.171329 Fulltext: PDF; External link: Fulltext

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2026-02-20
04:53
Measurement of the Saturation Length of the Self-Modulation Instability / Clairembaud, A. (Munich, Max Planck Inst.) ; Turner, M. (CERN) ; Bergamaschi, M. (CERN) ; Ranc, L. (Munich, Max Planck Inst.) ; Pannell, F. (University Coll. London) ; Mezger, J. (Munich, Max Planck Inst.) ; Jaworska, H. (CERN) ; van Gils, N. (CERN ; Groningen U.) ; Farmer, J. (Munich, Max Planck Inst.) ; Muggli, P. (Munich, Max Planck Inst. ; CERN)
The self-modulation (SM) instability transforms a long charged particle bunch traveling in plasma into a train of microbunches that resonantly drives large-amplitude wakefields. [...]
arXiv:2602.16624.
- 8.
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