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Enabling Real-Time Impedance Measurements of Operational Superconducting Circuits of Accelerator Magnets
/ Christensen, M B B (CERN ; Aalborg U.) ; Bednarek, M J (CERN) ; Denz, R (CERN) ; Koch, P (CERN) ; Ludwin, J (CERN ; Cracow, INP) ; Rodriguez-Mateos, F (CERN) ; Podzorny, T (CERN) ; Ravaioli, E (CERN) ; Steckert, J (CERN) ; Verweij, A (CERN) et al.
Impedance measurements of superconducting circuits routinely serve as means to anticipate their dynamic response and validate their electrical integrity. Usual procedures involve performing tests on non-powered systems during commissioning and maintenance periods. [...]
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 1-5
Fulltext: PDF;
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2.
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Upgrade of the Arc Interconnection Verification System for the Large Hadron Collider
/ Bednarski, Mikolaj (Cracow, INP) ; Jurkiewicz, Piotr (Cracow, INP) ; Ludwin, Jaromir (Cracow, INP) ; Wojas, Damian (Cracow, INP) ; Bednarek, Mateusz (CERN) ; D'Angelo, Giorgio (CERN)
This article presents the design and construction of a new version of an automated, highly efficient system for validation of connections between superconducting magnets in the Large Hadron Collider at CERN, Genève, Switzerland.The design of the new version is based on the existing comprehensive system for electrical measurements and is its integral part. The new system is dedicated to perform multi channel resistance measurements and is to be used during machine assembly and magnets replacement..
IEEE, 2019 - 5 p.
- Published in : 10.23919/MIXDES.2019.8787158
In : 26th International Conference on Mixed Design of Integrated Circuits and System, Rzeszow, Poland, 27 - 29 Jun 2019, pp.106-110
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3.
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Automatic System for the D.C. High Voltage Qualification of the Superconducting Electrical Circuits of the LHC Machine
/ Bozzini, D (CERN) ; Chareyre, V (CERN) ; Russenschuck, Stephan (CERN) ; Bednarek, M (Cracow, INP) ; Jurkiewicz, P (Cracow, INP) ; Kotarba, A (Cracow, INP) ; Ludwin, J (Cracow, INP) ; Olek, S (Cracow, INP)
A d.c. high voltage test system has been developed to verify automatically the insulation resistance of the powering circuits of the LHC. [...]
CERN-TS-2008-005; LHC-PROJECT-Report-1145; CERN-LHC-PROJECT-Report-1145.-
Geneva : CERN, 2008 - 4 p.
Preprint: PDF; External links: Fulltext; Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.WEPD008
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4.
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New Measurement Techniques Used for the Electrical Quality Assurance of HL-LHC Superconducting Magnets
/ Ludwin, Jaromir (Cracow, INP ; CERN) ; Bednarek, Mateusz (CERN) ; Rosa, Tiago Catalo Da (CERN ; Unlisted, PT)
In preparation of the Large Hadron Collider (LHC) upgrade to High Luminosity LHC (HL-LHC), a number of new Nb3Sn magnets, including short model and prototype magnets, had to be electrically qualified. The process included a number of well-established Electrical Quality Assurance (ELQA) tests, such as electrical continuity checks of the magnet instrumentation, High-Voltage (HV) insulation tests of the magnet and quench heater circuits, and impedance measurements. [...]
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 9001205
Fulltext: PDF;
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5.
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Data acquisition and supervision systems for the HL-LHC quench protection system - part I the hardware
/ Podzorny, Tomasz (CERN) ; Hollos, Adam (CERN) ; Skoczen, Andrzej (AGH-UST, Cracow) ; Garcia, G M (CERN) ; Spasic, Jelena (CERN) ; Steckert, Jens (CERN) ; Christensen, M B B (CERN) ; Galilée, Marc-Antoine (CERN) ; Moya, M M (CERN) ; Denz, Reiner (CERN) et al.
Protection of the superconducting circuits of the High Luminosity Upgrade of the LHC project (HL-LHC) will be ensured by a new generation of quench detection systems and various quench protection systems for the superconducting circuits and magnets.The HL-LHC quench detection systems serve as well as high-performance data acquisition systems, that also provide essential input for the automatic analysis of events such as a superconducting magnet quench.The supervision of the quench protection systems required the development of data acquisition and monitoring systems adapted to the specific characteristics of this equipment. Of particular importance are the protection device supervision units (PDSU), which are monitoring and interlocking the quench heater circuits and the Coupling Loss Induced Quench (CLIQ) systems.All data acquisition and monitoring systems use Ethernet-based communication with precise timing instead of a classic serial fieldbus solution. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPA023
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA023
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6.
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Data acquisition and supervision for the HL-LHC quench protection system – Part II the software stack
/ Galilée, Marc-Antoine (CERN) ; Christensen, Magnus (CERN) ; Garnier, Jean-Christophe (CERN) ; Martin Garcia, Guzman (CERN) ; Murillo Moya, Maria (CERN) ; Podzorny, Tomasz (CERN) ; Rayón Ropero, Laura (CERN) ; Thaller, Emanuel (CERN)
The Quench Protection System (QPS) of the LHC is crucial for integrity of the superconducting circuit elements. It also plays an important role in the acquisition of data from the circuit elements during the magnet qualification, equipment commissioning and accelerator operation. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPA122
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA122
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7.
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Quench detection and diagnostic systems for the superconducting circuits for the HL-LHC
/ Denz, Reiner (CERN) ; Blasco Serrano, Daniel (Madrid, CIEMAT ; CERN) ; Calcoen, Daniel (CERN) ; De Matteis, Ernesto (CERN) ; Froidbise, Vincent (CERN) ; Georgakakis, Spyridon (CERN) ; Haas, Severin (CERN) ; Mundra, Surbhi (CERN) ; Podzorny, Tomasz (CERN) ; Siemko, Andrzej (CERN) et al.
The High Luminosity Upgrade of the LHC [1] will incorporate a new generation of superconducting elements such as high field superconducting magnets based on Nb$_3$Sn conductors and MgB$_2$ high temperature superconducting links for magnet powering. The proper protection and diagnostics of those elements require the development of a new generation of integrated quench detection and data acquisition systems as well as novel methods for quench detection. [...]
CERN-ACC-2019-259.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPTS036
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPTS036
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8.
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Analysis of the Dependability of the LHC Quench Detection System During LHC Run 2 and Further System Evolution
/ Podzorny, Tomasz (CERN) ; Calcoen, Daniel (CERN) ; Denz, Reiner (CERN) ; Siemko, Andrzej (CERN) ; Spasic, Jelena (CERN) ; Steckert, Jens (CERN)
The quench detection system (QDS) of the LHC superconducting circuits is an essential part of the LHC machine protection and ensures the integrity of key elements of the accelerator. The large amount of hardwired and software interlock channels of the QDS requires a very high system dependability in order to reduce the risk of affecting the successful operation of the LHC. [...]
CERN-ACC-2017-129.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPAB007
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPAB007
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9.
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Application of the New Generic Quench Detection System for LHC's 11 T Dipole Magnet
/ Steckert, Jens (CERN) ; Serrano, Daniel Blasco (CERN) ; De Matteis, Ernesto (CERN) ; Denz, Reiner (CERN) ; Haas, Severin (CERN) ; Mundra, Surbhi (CERN) ; Podzorny, Tomasz (CERN) ; Siemko, Andrzej (CERN) ; Spasic, Jelena (CERN)
The high luminosity upgrade of large hadron collider (LHC) introduces a large number of new superconducting elements of various technologies. In order to ensure protection of these elements, a modular, versatile quench detection system had been developed. [...]
2019 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 1-4
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10.
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Preparation and Execution of the Electrical Quality Assurance Program On the LHC Superconducting Circuits During the Second Long Shutdown
/ Ludwin, Jaromir (CERN) ; Bednarek, Mateusz (CERN) ; Bednarski, Mikolaj (CERN ; Cracow, INP) ; Bielewski, Jaroslaw (CERN ; Cracow, INP) ; Bogdali, Pawel (CERN ; Cracow, INP) ; D'Angelo, Giorgio (CERN) ; Daniluk, Witold (CERN ; Cracow, INP) ; Dutkiewicz, Erazm Maria (CERN ; Cracow, INP) ; Grzadziel, Dominik (CERN ; Cracow, INP) ; Janik, Grzegorz (CERN ; Cracow, INP) et al.
The electrical quality assurance (ELQA) of the superconducting circuits of CERN’s Large Hadron Collider (LHC) during its second Long Shutdown (LS2) requires the execution of vast measurement campaigns. Each of 1658 electrical circuits as well as the instrumentation of each of the 1746 individual cryo-assemblies housing magnets, bus-bars and other components of the superconducting circuits, has to undergo a series of tests. [...]
2021 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4002404
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