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Physical Explanation for the Higher Sensitivity to Ion-Induced Burnout in SiC Schottky Diodes Compared to Si Schottky Diodes / Marques, C M (Montpellier U.) ; Michez, A (Montpellier U.) ; Wrobel, F (Montpellier U.) ; Kuboyama, S (Unlisted, CH) ; Saigné, F (Montpellier U.) ; Dilillo, L (Montpellier U.) ; Aguiar, Y Q (CERN) ; Alía, R G (CERN)
SiC has a higher critical electric field compared to Si, which is promising for power applications. However, the susceptibility of SiC Schottky barrier diodes (SBDs) to heavy ions is recognized as a critical issue due to single event burnout (SEB) and single event leakage current (SELC). [...]
2025 - 8 p. - Published in : IEEE Trans. Nucl. Sci. 72 (2025) 2411-2418

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Improving the Accuracy of the LHC Superconducting Main Dipole Circuit By-Pass Diode Model Through Closed-Loop Optimization / Gorenflo, M (CERN ; Philipps U. Marburg) ; Charifoulline, Z (CERN) ; Chmielinska, A (CERN) ; Ravaioli, E (CERN) ; Verweij, A (CERN) ; Vitrano, A (CERN) ; Wozniak, M (CERN)
The Large Hadron Collider (LHC) includes eight main dipole circuits, each containing 154 superconducting magnets. We are carrying out simulations of the electromagnetic thermal behavior of these circuits, together with experimental tests and continuous monitoring, to ensure their safe operation and to further improve our understanding. [...]
2025 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 35 (2025) 9000707

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Characteristic Timescales for the Operation of HTS CICCs in Compact Fusion Reactors / Breschi, Marco (Bologna U.) ; Savoldi, Laura (Polytech. Turin ; INFN, Genoa ; CERN) ; Cavallucci, Lorenzo (Bologna U. ; INFN, Bologna) ; Bottura, Luca (CERN)
In this work we address the shift from Low Temperature Superconductor (LTS) to High Temperature Superconductor (HTS) magnets presently occurring in the development of machines for controlled thermonuclear fusion with magnetic confinement. This shift implies several new challenges, which cannot be ignored in the design and modelling of the future HTS magnets. [...]
2025 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4202605
In : Applied Superconductivity Conference (ASC 2024), Salt Lake City, Utah, United States, 1 - 6 Sep 2024, pp.4202605

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Quench Modeling of the GaToroid Demonstrator Magnet for Hadron Therapy / Soldati, Luca (Genoa U.) ; Breschi, Marco (Bologna U.) ; Haziot, Ariel (CERN) ; Willering, Gerard (CERN) ; Vernassa, Gianluca (CERN) ; Bottura, Luca (CERN)
In the design of superconducting magnets, ensuring thermal stability during operation is of paramount importance. This study aims to predict heat propagation and temperature distribution during a quench event in the Low Temperature Superconductor (LTS) demonstrator of the GaToroid coil. [...]
2025 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4702305
In : Applied Superconductivity Conference (ASC 2024), Salt Lake City, Utah, United States, 1 - 6 Sep 2024, pp.4702305

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A test rig to study heat transfer of sCO2 at CERN / Pedano Medina, Camila Rocio (KIT - Karlsruhe Institute of Technology (DE)) ; Gleissle, Susanne (Offenburg University of Applied Sciences (DE)) ; Petagna, Paolo (CERN)
In high-energy physics (HEP) detectors and modern electronics, thermal management is critical to ensure reliable, long-term operation. Increasing power densities, compact geometries, and stricter environmental regulations are driving the need for efficient, low-GWP cooling solutions. [...]
AIDAinnova-CONF-2025-001.- Geneva : CERN, 2025 Poster presented on the 11.04.2025: PDF;
In : The 6th European Conference on Supercritical CO2 (sCO2), Delft, Nl, 9 - 11 Apr 2025

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The 6th European Conference on Supercritical CO2 (sCO2) - sCO2 Conference 9 - 11 Apr 2025 - Delft, Nl / Pecnik, R (ed.) (Technical University of Delft)
2025

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Studies on supercritical carbon dioxide as a refrigerant for future detectors / Pedano Medina, Camila Rocio (KIT - Karlsruhe Institute of Technology (DE)) ; Petagna, Paolo (CERN) ; Mall-Gleissle, Susanne (Offenburg University of Applied Sciences) ; Wetzel, Thomas (Karlsruhe Institute of Technology)
High thermal capacities and low values of density and viscosity are some of the main characteristics of supercritical fluids. These, in combination with the nature of a supercritical fluid - a single phase fluid - make them very interesting candidates for the thermal management of High Energy Physics detectors. [...]
AIDAinnova-CONF-2024-007.- Geneva : CERN, 2023 Fulltext: PDF;

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Towards defining the optimal design parameters for a test setup studying heat transfer with carbon dioxide at supercritical conditions / Pedano Medina, Camila Rocio (KIT - Karlsruhe Institute of Technology (DE)) ; Petagna, Paolo (CERN) ; Mall-Gleissle, Susanne (Offenburg University of Applied Sciences)
As the demand for environmentally friendly refrigeration technologies continues to grow, the use of natural refrigerants for the thermal management of detectors for high-energy physics becomes increasingly relevant. While the use of boiling CO2 flows is well established at CERN for applications requiring cold conditions, this study focuses on investigating the heat transfer capabilities of carbon dioxide in supercritical conditions. [...]
AIDAinnova-CONF-2024-006.- Geneva : CERN, 2024 Fulltext: PDF;

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Semi-Dry Cooling Solutions for Future Superconducting Accelerator Structures / Chioteli, Maria (CERN) ; Koettig, Torsten (CERN) ; Onufrena, Aleksandra (CERN) ; Naydenov, Boyan (CERN) ; Adam, Thomas (CEA INAC, Grenoble) ; Bremer, Johan (CERN)
Cryogenic dry cooling solutions for Superconducting RF cavities allow for synergies with modern cavity production methods based on vacuum coating and A15 SC layer deposition methods. A proof-of-concept cryogenic performance test stand will study relevant parameters of low-temperature cooling loops with respect to the RF performance of a 1.3 GHz prototype cavity. [...]
2024 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 3500504

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Analytical heat transfer analysis for CMS support infrastructure in the Phase-2 Upgrade / Knox, Jasper Alexander
This report presents an analytical modelling approach to estimate heat transfer across the Compact Muon Solenoid (CMS) subdetectors at the High-Luminosity Large Hadron Collider (HL-LHC). [...]
CERN-STUDENTS-Note-2023-227. - 2023
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