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SPS and CNGS

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2026-01-29
07:14
Innovations in High- and Ultra-precision Machining / Uhlmann, Eckart (Berlin, Tech. U.) ; Polte, Mitchel (Berlin, Tech. U.) ; Hocke, Toni (Berlin, Tech. U.) ; Tschöpel, Julius (Berlin, Tech. U.)
Modern precision manufacturing faces the challenge of integrating accuracy requirements into a framework of agile and sustainable production technologies. [...]
arXiv:2601.13120. - 2026 - 15.
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2026-01-27
07:46
Resonance gaps, discrepancies, and lines / Tomás García, Rogelio (CERN)
The sequence formed by the fractional tune resonances up to order n exactly coincides with the Farey sequence, Fn. In circular accelerators, it is important to place the tunes in regions free of resonances. [...]
2025 - 9 p. - Published in : Phys. Rev. Accel. Beams 28 (2025) 114001 document: PDF;

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2026-01-24
06:36
Manufacturing and Testing of the Nb3Sn Subscale Stress-Managed Common Coil Dipole Magnet 2 With Energy Shift With Coupling Quench Protection Method / Araujo, D (PSI, Villigen) ; Auchmann, B (PSI, Villigen ; CERN) ; Brem, A (PSI, Villigen) ; Capua, V Di (CERN) ; Michlmayr, T (PSI, Villigen) ; Müller, C (PSI, Villigen) ; Stampfli, A (PSI, Villigen) ; Fiscarelli, L (CERN) ; Haziot, A (CERN) ; Pentella, M (CERN) et al.
The Magnet Development (MagDev) laboratory at the Paul Scherrer Institute (PSI) has designed and successfully manufactured the first subscale stress-managed common coil magnet. The magnet was tested at CERN and reached 98% of its short sample current at 4.5 K. [...]
2026 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 36 (2026) 4001805

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2026-01-24
06:36
Noise Analysis and Variance Reduction of Continuous Impedance Measurements of Energized Superconducting Magnets / Christensen, Magnus Bøgh Borregaard (CERN ; Aalborg U.) ; Koch, Peter (Aalborg U.) ; Podzorny, Tomasz (CERN) ; Østergaard, Jan (Aalborg U.)
Superconducting magnet impedance measurements are vital for assessing magnet health and electrical integrity. To fur- ther enhance monitoring capabilities beyond contemporary meth- ods that largely rely on manual intervention, recent efforts have focused on enabling in situ and continuous measurements during magnet operation. [...]
2026 - 20 p. - Published in : IEEE Trans. Appl. Supercond. 36 (2026) 9001020 Fulltext: PDF; External link: Fulltext

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2026-01-24
06:36
Application of distributed temperature sensor for fire and cryogenic leak detection in accelerator tunnels / Dole, Michael (CERN) ; Di Francesca, Diego (CERN) ; Nissen, Henrik (CERN) ; Blanc, Jeremy (CERN) ; Bremer, Johan (CERN) ; FERNANDEZ, Julien (CERN) ; Dufay-Chanat, Laetitia (CERN) ; Contini, Lorenzo (CERN) ; Van de veire, Matthias (CERN) ; Rios, Oriol (CERN) et al.
High-energy accelerators like CERN’s Large Hadron Collider (LHC) present hazards characterized by temperature variations such as cryogenic leak or fire. Considering that LHC tunnels are large, underground, and radioactive areas, alternatives to traditional systems are explored to improve hazard detection. [...]
2025 - 4 p. - Published in : JACoW IPAC 2025 (2025) 2996 Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.2996

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2026-01-24
06:36
Investigating ion beam loss mechanisms at the SPS flat bottom / Waagaard, Elias (CERN ; Ecole Polytechnique, Lausanne) ; Soubelet, Felix (CERN) ; Bartosik, Hannes (CERN) ; Paraschou, Konstantinos (CERN)
The long injection segment (flat bottom) of the cycle in the Super Proton Synchrotron (SPS) used for filling the Large Hadron Collider (LHC) with Pb ion beams, exhibits strong beam losses and transverse emittance growth. During the 2024 run, large improvements of the beam transmission could be made such that record intensities could be delivered to the LHC. [...]
2025 - 4 p. - Published in : JACoW IPAC 2025 (2025) 2187 Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.2187

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2026-01-24
06:36
Towards ATF3: Beam based alignment (DFS, WFS) corrections in the ATF LINAC and ATF2 beamline / Korysko, Pierre (Oxford U.) ; Latina, Andrea (CERN)
The Accelerator Test Facility 2 (ATF2) serves as a critical platform for testing technologies and techniques aimed at advancing the next generation of linear colliders. The ATF2 is composed of a linear accelerator (LINAC), a damping ring, and an extraction line that includes a high-precision final focus system designed to achieve the small beam sizes necessary for future collider experiments. [...]
2025 - 4 p. - Published in : JACoW IPAC 2025 (2025) 523 Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.523

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2026-01-22
16:18
Study of longitudinal beam instabilities at transition crossing in the CERN Proton Synchrotron / Salinas, Julia Eva (Centrale Supelec (FR)) ; Lasheen, Alexandre (CERN)
The Proton Synchrotron (PS) faces beam stability challenges when crossing transi- tion energy, where longitudinal microwave instabilities can lead to rapid emittance blow-up and beam loss. [...]
CERN-ACC-NOTE-2026-0001. - 2026

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2026-01-22
07:00
Operational deployment of high brightness LHC beams in the SPS / Li, Kevin (U. Rome La Sapienza (main) ; CERN) ; Zannini, Carlo (U. Rome La Sapienza (main) ; CERN) ; Rumolo, Giovanni (U. Rome La Sapienza (main) ; CERN) ; Papotti, Giulia (U. Rome La Sapienza (main) ; CERN) ; Bartosik, Hannes (U. Rome La Sapienza (main) ; CERN) ; Mases, Ingrid (U. Rome La Sapienza (main) ; CERN) ; Karpov, Ivan (U. Rome La Sapienza (main) ; CERN) ; Paraschou, Konstantinos (U. Rome La Sapienza (main) ; CERN) ; Schenk, Michael (U. Rome La Sapienza (main) ; CERN)
Following the LHC Injector Upgrade programme (LIU) there has been a gradual ramp-up of the intensity of LHC beams in the CERN Super Proton Synchrotron (SPS). This was initially hampered by vacuum issues in several critical components, such as RF cavities and kicker magnets, requiring extensive scrubbing campaigns to condition these components. [...]
2025 - 4 p. - Published in : JACoW IPAC 2025 (2025) 778 Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.778

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2026-01-22
07:00
Readiness of the HEARTS@CERN facility for space electronics high-energy heavy-ion testing / Söderström, Daniel (CERN) ; Huschauer, Alexander (CERN) ; Waets, Andreas (CERN) ; Mikulec, Bettina (CERN) ; Grenier, Damien (CERN) ; Prelipcean, Daniel (CERN) ; Cotte, Denis (CERN) ; Johnson, Eliott (CERN) ; Ravotti, Federico (CERN) ; Pezzullo, Giuseppe (CERN) et al.
The HEARTS@CERN activity in the framework of the HEARTS (High-Energy Accelerators for Radiation Testing and Shielding) EU project is targeted at enhancing Europe’s high-energy (>100 MeV/n) heavy ion electronics irradiation capability through the development of an irradiation beam combining unique penetration and ionization characteristics. These types of tests are essential for exploiting commercial electronics in space.Throughout 2024, the HEARTS@CERN efforts have focused on achieving and demonstrating compliance with the space user radiation effects testing requirements. [...]
2025 - 4 p. - Published in : JACoW IPAC 2025 (2025) TUPB006 Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.TUPB006

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High Intensity ECN3 and the SPS Beam Dump Facility (8)
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