CERN Accelerating science

All CERN Accelerators documents

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2024-07-22
11:28
Chaos Map Analysis of Particle Stability in Accelerators / Zampetakis, Michail (CERN)
It is well known that the combination of space charge and lattice imperfections can put the beam stability at stake when it has to survive for a large number of turns. In such cases, particles may exhibit chaotic motion leading to particle losses and beam blow-up. [...]
CERN-THESIS-2018-503; 000418807.- Heraklion, Crete : E-Locus, 2018-11-23 - 52 p. Fulltext: PDF; External link: Approve this document (restricted)

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2024-07-19
10:12
Multi-bunch and Multi-burst Longitudinal Beam Observation in the PS / Krefta, Dawid (Warsaw School of Economics (PL)) ; Huschauer, Alexander (CERN) ; Lasheen, Alexandre (CERN) ; Pahl, Hannes (CERN) ; Trad, Georges (CERN)
A new wall current monitor was installed in the PS during the Year-End Technical Stop 2022-2023 with the aim of using it as a longitudinal beam quality monitor. [...]
CERN-ACC-NOTE-2024-0015.
- 2024. - 16 p.
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2024-07-19
04:36
Interim report for the International Muon Collider Collaboration (IMCC) / International Muon Collider Collaboration
The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implementation of the European Strategy for Particle Physics-Accelerator R&D Roadmap by the Laboratory Directors Group [2], hereinafter referred to as the the European LDG roadmap. [...]
arXiv:2407.12450.
- 150 p.
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2024-07-19
04:35
The ECFA Early-Career Researchers Panel: Report for the year 2023 / ECFA Early-Career Researchers (ECR) Panel Collaboration
The European Committee for Future Accelerators (ECFA) Early-Career Researcher (ECR) panel, which represents the interests of the ECR community to ECFA, presents in this document its initiatives and activities in the year 2023. [...]
arXiv:2407.12761.
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2024-07-17
10:09
Expanding the CERN ion injector chain capabilities: new beam dynamics simulation tools for future ion species / Waagaard, Elias Walter (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Alemany Fernandez, Reyes (CERN) ; Bartosik, Hannes (CERN) ; Bruce, Roderik (CERN) ; Soubelet, Felix (CERN)
The present ion physics program in the CERN accelerator complex is mainly based on lead (208Pb82+) ion beams. Lighter ions have been considered both by the ALICE3 detector upgrade proposal at the Large Hadron Collider (LHC) -- as a potential way to achieve higher integrated nucleon-nucleon luminosity compared to the present Pb beams -- and also by the Super Proton Synchrotron (SPS) fixed-target experiment NA61/SHINE [...]
CERN-PBC-CONF-2024-007.- Geneva : CERN, 2024 - 4. Fulltext: PDF;

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2024-07-12
10:33
Simulation and RF Measurement Report to Determine the Longitudinal Beam Coupling Impedance in the SPS-BGI / Bursali, Hikmet (CERN) ; Vollinger, Christine (CERN)
The Beam Gas Ionization (BGI) monitors are non-destructive beam diagnostic devices to measure the transverse beam profiles in the horizontal and vertical planes. [...]
CERN-ACC-NOTE-2024-0014.
- 2024. - 22 p.
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2024-07-11
15:00
Update of Facility Technical Studies for the FPF / Boyd, Jamie (CERN) ; Gamba, Davide (CERN) ; Osborne, John Andrew (CERN) ; Bud, Tamara Alice (CERN) ; Balazs, Kincso (CERN) ; Corso, Jean-Pierre (CERN) ; Magazinik, Anastasiya (Tampere University of Technology (FI)) ; Navascues Cornago, Angel (CERN)
The Forward Physics Facility (FPF) has been proposed to house a set of detectors to study collider neutrinos and search for new particles in the High-Luminosity LHC era. This report provides an update to the space and infrastructure requirements of the Facility, a result of integration studies carried out by CERN technical teams in conjunction with the FPF experimental community. [...]
CERN-PBC-Notes-2024-004.- Geneva : CERN, 2024 - 23. Fulltext: PDF;

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2024-07-07
06:02
R&D; for positron sources at high-energy lepton colliders / Moortgat-Pick, Gudrid (Hamburg U. ; DESY) ; Riemann, Sabine (DESY, Zeuthen) ; Sievers, Peter (CERN) ; Tenholt, Carmen (DESY)
Several designs for high-energy Lepton Colliders serving as Higgs factories but extendable to higher energies up to the TeV range are under discussion. The most mature design is the International Linear Collider (ILC), but also the Compact Linear Collider (CLIC) as well as the new concept of a Hybrid Asymmetric Linear Higgs Factory (HALHF) have a large physics potential. [...]
2024 - 12 p. - Published in : PoS EPS-HEP2023 (2024) 626 Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.626

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2024-07-05
07:49
Planar deposition of Nb thin films by HiPIMS for superconducting radiofrequency applications / Carlos, Carlota P A (CERN ; U. Geneva (main)) ; Leith, Stewart (CERN) ; Rosaz, Guillaume (CERN) ; Pfeiffer, Stephan (CERN) ; Senatore, Carmine (U. Geneva (main))
Cost efficiency and sustainability are critical challenges for future accelerator machines. Nb-coated Cu (Nb/Cu) superconducting radiofrequency (SRF) accelerating cavities, while requiring R&D; to meet high acceleration gradient performance standards, show potential for addressing these challenges. [...]
2024 - 12 p. - Published in : Vacuum 227 (2024) 113354 Fulltext: PDF;

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2024-07-05
07:49
Deformation Behavior and Degradation on Rutherford Cabling of Nb$_{\text{3}}$Sn Wires / Hopkins, Simon C (CERN) ; Medina-Clavijo, Bentejui (CERN) ; Rastoll, Cristin (CERN ; U. Bourgogne) ; Rodia, Davide (CERN ; Geneva U.) ; Malabaila, Marina (CERN) ; Barth, Christian (CERN) ; Fleiter, Jerome (CERN) ; Boutboul, Thierry (CERN) ; Ballarino, Amalia (CERN)
In the production of Rutherford cables, Nb 3 Sn strands are subjected to severe deformation; and to evaluate this degradation prior to cabling, uniaxial rolling with a thickness reduction of ∼15% has often been used. The effects of this deformation on superconducting performance differ significantly between wire designs. [...]
2024 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 6001308 Fulltext: PDF;

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