2025-05-22
06:29 |
Surface and sub-surface modifications of copper electrodes exposed to electric high-field conditioning at cryogenic temperatures
/ Jacewicz, Marek (Uppsala U.) ; Profatilova, Iaroslava (Uppsala U.) ; Ashkenazy, Yinon (Hebrew U.) ; Calatroni, Sergio (CERN) ; Popov, Inna (Hebrew U.) ; Szaniawski, Piotr (Uppsala U.) ; Wuensch, Walter (CERN)
It has been stipulated that the conditioning of metal surfaces under a high electric field is dominated by material hardening. To test this, we subjected three pairs of copper electrodes to high-voltage conditioning at distinct temperatures (300, 30, and 10 K) until each reached its saturation field. [...]
2025 - 15 p.
- Published in : J. Appl. Phys. 137 (2025) 193302
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2025-05-22
06:29 |
The HEARTS EU Project and Its Initial Results on Fragmented High-Energy Heavy-Ion Single-Event Effects Testing
/ García Alía, Rubén (CERN) ; Waets, Andreas (CERN ; Zurich U.) ; Coronetti, Andrea (CERN ; IES, Montpellier) ; Bilko, Kacper (CERN ; Jean Monnet U.) ; Delrieux, Marc (CERN) ; Emriskova, Natalia (CERN) ; Esposito, Luigi (CERN) ; Fraser, Matthew (CERN) ; Johnson, Eliott (CERN) ; Klimek, Karolina (CERN) et al.
We perform single-event effect (SEE) tests with well-characterized fully fragmented (i.e., beyond Bragg peak) high-energy heavy-ion beams and compare the results with those expected from conventional, mono-linear energy transfer (mono-LET) measurements, showing a satisfactory level of agreement between the two. This compliance paves the way for the exploitation of simulation tools for accurately quantifying the ion fragmentation impact on SEE rates for both ground-level testing conditions and space galactic cosmic-ray (GCR) environments, with electronics operating behind significant thicknesses of shielding. [...]
2025 - 10 p.
- Published in : IEEE Trans. Nucl. Sci. 72 (2025) 1040-1049
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2025-05-22
06:29 |
Development of a ReBCO Non/Metal-Insulated 40 T Solenoid for a Muon Collider
/ Bordini, B (CERN) ; Accettura, C (CERN) ; Bertarelli, A (CERN) ; Bottura, L (CERN) ; Dudarev, A (CERN) ; Hafiz, M A (CERN) ; Kolehmainen, A (CERN) ; Mulder, T (CERN) ; Rinaldoni, D (CERN) ; Sanda, F (CERN) et al.
In the quest to explore the fundamental properties of particles at the energy frontier, the International Muon Collider Collaboration (IMCC) has made significant progress in the conceptual design study of a Muon Collider (MC). Central to this effort is the development of the various MC's magnet systems, particularly the Ultra-High-Field (UHF) solenoids needed for the MC final cooling stage. [...]
2025 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
- Published in : IEEE Trans. Appl. Supercond.
In : Applied Superconductivity Conference (ASC 2024), Salt Lake City, Utah, United States, 1 - 6 Sep 2024, pp.4605705
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2025-05-22
06:29 |
Test Results and Analysis of the MQYYM Magnet at 1.9 K in STAARQ, a New CEA Paris-Saclay Test Facility
/ Perraud, S (IRFU, Saclay) ; Allain, H (IRFU, Saclay) ; Boussuge, T (IRFU, Saclay) ; Commaux, N (IRFU, Saclay) ; Correia-Machado, R (IRFU, Saclay) ; Antoni, P De (IRFU, Saclay) ; Felice, H (IRFU, Saclay) ; Foussat, A (CERN) ; Gheller, J M (IRFU, Saclay) ; Guihard, Q (IRFU, Saclay) et al.
In the initial framework of HL-LHC project, a 90 mm Nb-Ti single aperture quadrupole short model with a gradient of 120 T/m at 1.9 K, has been designed, manufactured and firstly tested at 4.2 K as part of a collaboration between CERN and CEA. This magnet called MQYYM has been recently tested for the first time at 1.9 K and used as a reference magnet for the commissioning of the new CEA Paris-Saclay cryogenic test facility STAARQ (standing for test station for quadrupole accelerator magnets). [...]
2025 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4003106
In : Applied Superconductivity Conference (ASC 2024), Salt Lake City, Utah, United States, 1 - 6 Sep 2024, pp.4003106
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2025-05-22
06:29 |
High Throughput Data Transfer System for ALICE Experiment in Run 3
/ Şuiu, Alice-Florenţa (Bucharest, Polytechnic Inst. ; CERN) ; Grigoraş, Costin (CERN) ; Țăpuş, Nicolae (Bucharest, Polytechnic Inst.) ; Betev, Latchezar (CERN)
/ALICE Collaboration
The European Organization for Nuclear Research (CERN), headquartered in Geneva, Switzerland, operates the Large Hadron Collider (LHC), the world’s most powerful particle accelerator. One of the four main LHC experiments is A Large Ion Collider Experiment (ALICE), which is dedicated to studying the properties of quark–gluon plasma, a state of matter that existed shortly after the Big Bang. [...]
2025 - 16 p.
- Published in : J. Grid Comput. 23 (2025) 20
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2025-05-22
06:28 |
Analytical Estimation of Quench Protection Limits in Insulated, Non-Insulated, and Metal-Insulated ReBCO Accelerator Dipoles and Quadrupoles
/ Salmi, Tiina (Tampere U.) ; Bersani, Andrea (INFN, Genoa) ; Bottura, Luca (CERN) ; Caiffi, Barbara (INFN, Genoa) ; Farinon, Stefania (INFN, Genoa) ; Mariotto, Samuele (INFN, Milan) ; Novelli, Daniel (INFN, Genoa)
Future particle accelerators require high-field dipole and quadrupole magnets to guide the particles inside the collider ring. Magnets based on High-Temperature Superconductors (HTS) allow operation with higher magnetic field and higher operation temperature compared with the Low-Temperature Superconductor (LTS) based options. [...]
2025 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
- Published in : IEEE Trans. Appl. Supercond.
Fulltext: PDF;
In : Applied Superconductivity Conference (ASC 2024), Salt Lake City, Utah, United States, 1 - 6 Sep 2024, pp.4604705
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2025-05-22
06:28 |
Proof-of-principle e+ source for future colliders
/ Vallis, N (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; Craievich, P (PSI, Villigen) ; Schär, M (PSI, Villigen) ; Zennaro, R (PSI, Villigen) ; Auchmann, B (PSI, Villigen ; CERN) ; Braun, H H (PSI, Villigen) ; Besana, M I (PSI, Villigen) ; Duda, M (PSI, Villigen) ; Fortunati, R (PSI, Villigen) ; Garcia-Rodrigues, H (PSI, Villigen) et al.
The PSI Positron Production (P3 or P-cubed) experiment is a e+ source and capture system with the potential to increase by an order of magnitude the state-of-the-art e+ yield normalized to the drive linac energy, a highly desirable goal for future colliders. The experiment is framed in the FCC-ee injector study and will be hosted at SwissFEL, located at the Paul Scherrer Institute in Switzerland. [...]
2024 - 16 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 013401
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2025-05-22
06:28 |
Mechanical and statistical analysis of hand-woven jute fibre composite laminates with bio-based and synthetic matrices
/ de Assis, Paulo Victor (Sao Joao del-Rei Fed. U. ; Itajuba Federal U.) ; da Silva, Rodrigo José (Sao Joao del-Rei Fed. U. ; Bristol U. ; CERN) ; Braga, Guilherme Germano (Sao Joao del-Rei Fed. U.) ; Ancelloti, Antonio Carlos, Junior (Itajuba Federal U.) ; Silveira, Marcio Eduardo (Sao Joao del-Rei Fed. U.) ; Panzera, Tulio Hallak (Sao Joao del-Rei Fed. U.) ; Scarpa, Fabrizio (Bristol U.)
This study describes the use of continuous jute yarn fabrics innovatively manufactured through manual loom, followed by a hand lay-up process to obtain composite laminates with biobased castor oil and epoxy systems. A full factorial design (22) is employed to evaluate the effects of matrix phases (epoxy and castor oil polymers) and jute fibres (uni- and bidirectional fabrics) on the apparent density, porosity, tensile, three-point bending, and Charpy impact responses. [...]
2025 - 15 p.
- Published in : Composite Struct. 358 (2025) 118982
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2025-05-22
06:28 |
Transient Behavior of the Second Fusillo Subscale Curved CCT Magnet
/ Wozniak, M (CERN) ; Devred, A (CERN) ; Ferriere, R (CERN) ; Haziot, A (CERN) ; Mangiarotti, F J (CERN) ; Kirby, G (CERN) ; Pentella, M (CERN) ; Petrone, C (CERN) ; Ravaioli, E (CERN) ; Verweij, A (CERN)
The Fusillo project at CERN aims to design and build a demonstrator magnet with multi-harmonic corrected fields in a 90°, curved, Canted-Cosine-Theta magnet. Two subscale magnets are built with 30° bending, about 1/30 of the demonstrator conductor length, and increased current to reach coil stresses equivalent to those of the demonstrator. [...]
2025 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4902206
Fulltext: PDF;
In : Applied Superconductivity Conference (ASC 2024), Salt Lake City, Utah, United States, 1 - 6 Sep 2024, pp.4902206
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2025-05-22
06:28 |
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