CERN Accelerating science

CERN Document Server 63 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 0.68 секунд. 
1.
Single-Event Effect Responses of CMOS Integrated Planar Multiturn Inductors in LC-Tank Oscillators Under Heavy-Ion Microbeam Irradiation / Adom-Bamfi, Gideon (Leuven U.) ; Biereigel, Stefan (CERN) ; Leroux, Paul (Leuven U.) ; Prinzie, Jeffrey (Leuven U.)
This article presents detailed measurements of a novel radiation effect caused by the sensitivity of on-chip spiral inductors to ionizing particles, leading to single-event frequency transients (SEFTs) in LC-tank oscillators. Quantitative experimental results from heavy-ion microbeam irradiation of two-turn and four-turn inductor samples are presented. [...]
2024 - 11 p. - Published in : IEEE Trans. Nucl. Sci. 71 (2024) 1380-1390
2.
Optimizing large data transfers for the ALICE experiment in Run 3 / Weisz, Sergiu (Bucharest, Polytechnic Inst.) ; Grigoras, Costin (CERN) ; Șuiu, Alice-Florența (Bucharest, Polytechnic Inst.) ; Betev, Latchezar (CERN) ; Carabaș, Mihai (Bucharest, Polytechnic Inst.) ; Țăpuș, Nicolae (Bucharest, Polytechnic Inst.)
The physics programme and scope of HEP experiments natu-rally grow with time, thus the computing requirements, both CPU and storage, increase. The 4 large LHC experiments (ALICE, ATLAS, CMS, and LHCb) are undergoing upgrade cycles, for ALICE and LHCb the upgrade was finalized in the years of the LHC long Shutdown 2, 2019–2021, and for ATLAS and CMS it is foreseen to take place in 2026–2028. [...]
2023 - 8 p. - Published in : 10.1109/RoEduNet60162.2023.10274908
In : 22nd RoEduNet Conference: Networking in Education and Research (RoEduNet2023), Craiova, Romania, 21 - 22 Sep 2023
3.
How to overcome the demagnetization of superconducting Halbach arrays? / Houbart, M (Liege U.) ; Fagnard, J-F (Liege U.) ; Dular, J (CERN) ; Dennis, A R (Cambridge U.) ; Namburi, D K (Glasgow U.) ; Durrell, J H (Cambridge U.) ; Geuzaine, C (Liege U.) ; Vanderheyden, B (Liege U.) ; Vanderbemden, P (Liege U.)
Assembling trapped-field superconducting magnets with mutually orthogonal magnetizations directions in a Halbach array configuration offers the prospect of generating both high fields and large field gradients. A major issue when assembling bulk superconductors in a Halbach array, however, consists in the alteration of the initial current density distribution during the assembly process. [...]
2023 - 12 p. - Published in : Supercond. Sci. Technol. 36 (2023) 115012
4.
Accounting and monitoring infrastructure for Distributed Computing in the ATLAS experiment / Alekseev, Aleksandr (Universidad Andres Bello (CL)) ; Barberis, Dario (INFN e Universita Genova (IT)) ; Beermann, Thomas (Bergische Universitaet Wuppertal (DE)) /ATLAS Collaboration
The ATLAS experiment uses various tools to monitor and analyze the metadata of the main distributed computing applications. One of the tools is fully based on the unified monitoring infrastructure (UMA) provided by the CERN-IT Monit group. [...]
ATL-SOFT-SLIDE-2021-309.- Geneva : CERN, 2021 - 20 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 9th International Conference on Distributed Computing and Grid Technologies in Science and Education (GRID 2021), Dubna, Russian Federation, 5 - 9 Jul 2021
5.
Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks / Wolf, Felix (CERN) ; Lackner, Friedrich (CERN) ; Hofmann, Michael (Forschungsreaktor Munich) ; Scheuerlein, Christian (CERN) ; Schoerling, Daniel (CERN) ; Tommasini, Davide (CERN)
For the optimization of Nb3Sn superconducting accelerator magnet design and assembly parameters the stress-strain behavior of the coils needs to be known. We have measured the stiffness of Nb3Sn Rutherford cable stacks with different epoxy volume fraction. [...]
2019 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 8401006
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.8401006
6.
New Methodology to Derive the Mechanical Behavior of Epoxy-Impregnated Nb$_3$Sn Cables / Fichera, Claudio (CERN) ; Bertarelli, Alessandro (CERN) ; Ferracin, Paolo (CERN) ; Guinchard, Michael (CERN) ; Sacristan de Frutos, Oscar (CERN) ; Vallone, Giorgio (CERN)
The Nb3Sn technology plays a crucial role in developing high-field superconducting magnets. The new-generation Nb3Sn cable greatly contributes to bring the magnetic field produced by the superconducting dipole magnets to the 16 T level; nevertheless, its mechanical properties are largely variable, making it difficult to predict the mechanical behavior of the magnet structure. [...]
2019 - 12 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 8401912
7.
Performance of the Large Hadron Collider's Cryogenic Bypass Diodes Over the First Two Physics Runs, Future Projects, and Perspectives / D'Angelo, Giorgio (CERN) ; Charifoulline, Zinour (CERN) ; Denz, Reiner (CERN) ; Favre, Mathieu (CERN) ; Hagedorn, Dietrich (CERN) ; Monteuuis, Arnaud (CERN) ; Rodriguez-Mateos, Felix (CERN) ; Siemko, Andrzej (CERN) ; Stachon, Krzysztof (CERN) ; Verweij, Arjan (CERN) et al.
Cryogenic bypass diodes have been installed in all superconducting dipole magnets (1232) and quadrupole magnets (392) of the Large Hadron Collider (LHC) at CERN, and operated during the physics runs since 2009. The bypass diodes are a fundamental ingredient of the quench protection system for those main dipoles and quadrupoles magnets. [...]
2020 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4002404
8.
Influence of Architecture of Composite Superconducting Tape-Based Stacks on AC Demagnetization for Electric Machines Application / Smara, Anis (Cambridge U.) ; Mineev, Nikolay (Cambridge U.) ; Climante-Alarcon, Vicente (Cambridge U.) ; Tomkow, Lukasz (Cambridge U. ; CERN) ; Reis, Thomas (Unlisted, DE) ; Glowacki, Bartek A (Cambridge U. ; Inst. Power Eng., Warsaw)
Superconducting tape-based stacks used as trapped field magnets in electrical machines are subject to an AC-demagnetizing field. This study provides experimental measurements of the magnetization and demagnetization of several stack architectures for electrical machine applications. [...]
2020 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 30 (2020) 5206506
9.
High Performance Triggering Transformer for Stack of Series Connected Thyristors / Senaj, V (CERN) ; Pastor, D Cabrerizo (CERN) ; Kramer, T (CERN)
The Large Hadron Collider is the world biggest and highest energy proton accelerator/collider. It is built on Switzerland/France border some 100 m underground. [...]
2019 - 3 p. - Published in : 10.1109/PPPS34859.2019.9009655
In : IEEE Pulsed Power and Plasma Science Conference, Orlando, FL, USA, 23 -28 Jun 2019
10.
Cross-field demagnetization of stacks of tapes: 3D modeling and measurements / Kapolka, Milan (Bratislava, Electrotech. Inst.) ; Pardo, Enric (Bratislava, Electrotech. Inst.) ; Grilli, Francesco (KIT, Karlsruhe) ; Baskys, Algirdas (Cambridge U. ; CERN) ; Climente-Alarcon, Vicente (Cambridge U.) ; Dadhich, Anang (Bratislava, Electrotech. Inst.) ; Glowacki, Bartek A. (Cambridge U. ; Inst. Power Eng., Warsaw)
Stacks of superconducting tapes can trap much higher magnetic fields than conventional magnets. This makes them very promising for motors and generators. [...]
arXiv:1909.12129.- 2020-03-13 - 15 p. - Published in : Supercond. Sci. Technol. 33 (2020) 044019 Fulltext: 10.1088_1361-6668_ab5aca - PDF; 1909.12129 - PDF;

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