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2025-02-04
06:47
Construction and Analysis of a Modified Nb3Sn 11 T Short Dipole Model / Cabrera, Carmen Abad (CERN) ; Perini, Diego (CERN) ; Bampton, Tavis Alexander (CERN) ; Bahmane, Oussama Id (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Bourcey, Nicolas (CERN) ; Devred, Arnaud (CERN) ; Vez, Ruth Diaz (CERN) ; Garion, Cedric (CERN) ; Guinchard, Michael (CERN) et al.
The 5.2-m-long, 11 T double-aperture Nb3Sn Dipole Magnet was designed to replace some of the standard, 15-m-long 8.3 T Nb–Ti main dipole magnets in the Large Hadron Collider. After the production and test of several of 2-m-long models, the test of full-length 11 T series magnets revealed signs of performance degradation in the coil ends after a sequence of electromagnetic and thermal cycles. The possible sources for performance degradation were categorized into two groups: issues internal to the coils and issues with the coil support structure, in particular in the magnet ends. [...]
2025 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 35 (2025) 1-7 Fulltext: PDF;

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2025-02-04
06:47
Performance of a HL-LHC Nb$_3$Sn Quadrupole Magnet in the 100–200 MPa Range of Azimuthal Stress / Mangiarotti, F J (CERN) ; Izquierdo Bermudez, S (CERN) ; Devred, A (CERN) ; Diaz Vez, R (CERN) ; Ferradas Troitino, J (CERN) ; Ferradas Troitino, S (CERN) ; Feuvrier, J (CERN) ; Guinchard, M (CERN) ; Haziot, A (CERN) ; Milanese, A (CERN) et al.
With the assembly and test results of four Nb$_\text{3}$Sn short-model quadrupoles (MQXFS) for the High Luminosity Upgrade of the CERN Large Hadron Collider (LHC), an optimum pre-load level was established for the construction of the full-length, series magnets. Successive MQXFS magnets were used as testbeds for potential changes (including pre-load fine tuning) to be implemented in the series, and to better understand the stress dependence of Nb$_\text{3}$Sn magnet performance. [...]
2025 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4000307 Fulltext: PDF;

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2025-02-04
06:47
Laser-Induced Quench Study of the Magneto-Thermal Stability of Nb$_3$Sn Wires / Kuczynska, J H (CERN ; Geneva U.) ; Hopkins, S C (CERN) ; Senatore, C (Geneva U.) ; Boutboul, T (CERN)
In the pursuit of developing 14+ T Nb$_3$Sn magnets for a future energy-frontier circular collider, there is a growing demand for wires with enhanced critical current density (Jc), larger diameters, and lower copper-to-non-copper ratios. These requirements pose significant challenges to maintaining magnetothermal stability of the superconducting wires. [...]
2025 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 35 (2025) 1-6 Fulltext: PDF;

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2025-02-04
06:47
Evaluating the Electro-Magnetic Effects of Electrical Short-Circuits in a Nb-Ti Accelerator Magnet / Reynaud, V (CERN ; Polytech. Turin) ; Farinon, S (INFN, Genoa) ; Janitschke, M (CERN ; U. Rostock) ; Ravaioli, E (CERN) ; Verweij, A P (CERN) ; Willering, G (CERN) ; van Rienen, U (U. Rostock)
Electrical short-circuits in the coil winding pack of a superconducting magnet can severely impact the magnet's performance and safety during operation. Hence, finding ways to detect and assess these non-conformities is essential. [...]
2025 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4700405 Fulltext: PDF;

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2025-02-03
17:12
Advancements in CERN's Radiation Monitoring and Data Analysis Solutions for Radiation to Electronics applications / Bilko, Kacper (Universite Jean Monnet (FR))
This thesis focuses on the aspects related to the protection of electronics in the CERN radiation environment, also known as Radiation Hardness Assurance. In particular, the two core pillars are investigated, namely i) characterization of the CERN's radiation environment through the currently available radiation monitors, ii) applications of commercial silicon solid-state detectors for monitoring radiation fields and particle beams (relevant for electronics testing). [...]
CERN-THESIS-2024-325.- 145 p. Fulltext: PDF; External link: Approve this document (restricted)

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2025-01-28
10:58
Technical specification manuufacture of switch containers (inflector PFN - MKI)
CERN-SL-Spec-99-09-BT. - 1999 - mult..

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2025-01-27
14:36
Technical specification for a safety co-ordiantion assignment in SL division projects
CERN-SL-Spec-2001-12-BT. - 2001 - mult..

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2025-01-27
14:35
Technical specification for a set of mechanical parts for high voltage coaxial connectors
CERN-SL-Spec-2001-10-BT. - 2001 - mult..

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2025-01-27
14:30
Technical specification for a safety co-ordiantion assignment in SL division projects
CERN-SL-Spec-2001-09 ; EDMS-323435. - 2001 - mult..

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2025-01-27
14:28
Technical specification of Elmwood thermostats for the LHC-MQW magnet
CERN-SL-Spec-2001-08-MS. - 2001 - mult..

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High Luminosity Large Hadron Collider (HL-LHC) (1,222)
HiLumi LHC (264)