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A public data service for the Beam Interlock Systems at CERN - current status and future plans
/ Garnier, Jean-Christophe (CERN) ; Barth, Jonas (CERN) ; Galilée, Marc-Antoine (CERN) ; Wollmann, Daniel (CERN) ; Buszydlik, Aleksander (CERN) ; Skarhed, Tobias (CERN)
The Beam Interlock System (BIS) is the backbone of the machine protection system in CERN’s accelerator chain, ensuring that the beams are safely transported through the injector chain and circulated in the Large Hadron Collider. A new version of the BIS is currently under development and planned to be deployed in the SPS, LHC and the North Area experimental zone during the Long Shutdown 3 (LS3), while the recently installed BIS in LINAC4 and the PSB will remain in place. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPA121
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA121
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2.
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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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3.
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A Modernized Architecture for the Post Mortem System at CERN
/ Barth, Jonas (CERN) ; Bogyai, Filip (CERN) ; Garnier, Jean-Christophe (CERN) ; Majewski, Marcin (CERN) ; Martins Ribeiro, Tiago (CERN) ; Mnich, Aleksandra (CERN) ; Pocwierz, Maciej (CERN) ; Selvek, Robert (CERN) ; Simpson, Robert (CERN) ; Stanisz, Anita (CERN) et al.
The control system of the accelerators at CERN stores and analyzes more than 200 million dumps of high resolution data recordings every year in the Post Mortem (PM) system. A continuous increase in the complexity of the Large Hadron Collider’s (LHC) systems and the desire to collect more accurate data requires continuous improvement of the PM system. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1557-1560
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1557-1560
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4.
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Summary of the Post-Long Shutdown 2 LHC Hardware Commissioning Campaign
/ Apollonio, Andrea (CERN) ; Andreassen, Odd (CERN) ; Antoine, Alain (CERN) ; Argyropoulos, Theodoros (CERN) ; Bastos, Miguel (CERN) ; Bednarek, Mateusz (CERN) ; Bordini, Bernardo (CERN) ; Brodzinski, Krzysztof (CERN) ; Calia, Andrea (CERN) ; Charifoulline, Zinour (CERN) et al.
In this contribution we provide a summary of the LHC hardware commissioning campaign following the second CERN Long Shutdown (LS2), initially targeting the nominal LHC energy of 7 TeV. A summary of the test procedures and tools used for testing the LHC superconducting circuits is given, together with statistics on the successful test execution. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 335-338
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.335-338
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5.
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Optimizing distributed file storage and processing engines for CERN's Large Hadron Collider using multi criteria partitioned replication
/ Boychenko, Serhiy (CERN) ; Zerlauth, Markus (CERN) ; Garnier, Jean-Christophe (CERN) ; Zenha-Rela, Mario (Coimbra U.)
Throughout the last decades, distributed file systems and processing engines have been the primary choice for applications requiring access to large amounts of data. Since the introduction of the MapReduce paradigm, relational databases are being increasingly replaced by more efficient and scalable architectures, in particular in environments where a query is expected to process TBytes or even PBytes of data in a single execution. [...]
2018 - 11 p.
- Published in : 10.1145/3154273.3154320
In : 19th International Conference on Distributed Computing and Networking, Varanasi, India, 4 - 7 Jan 2018, pp.1-11
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6.
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Evaluation of an SFP Based Test Loop for a Future Upgrade of the Optical Transmission for CERN’s Beam Interlock System
/ Secondo, Raffaello (CERN) ; Galilée, Marc-Antoine (CERN) ; Garnier, Jean-Christophe (CERN) ; Martin, Christophe (CERN) ; Romera, Iván (CERN) ; Siemko, Andrzej (CERN) ; Uythoven, Jan (CERN)
The Beam Interlock System (BIS) is the backbone of CERN’s machine protection system. The BIS is responsible for relaying the so-called Beam Permit signal, initiating in case of need the controlled removal of the beam by the LHC Beam Dumping System. [...]
2019 - 5 p.
- Published in : 10.18429/JACoW-ICALEPCS2019-WEPHA131
Fulltext: PDF;
In : 17th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS), New York, United States, 5 - 11 Oct 2019, pp.WEPHA131
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7.
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Real-time Java to support the device property model
/ Cardin, Chloe (CERN) ; Galilée, Marc-Antoine (CERN) ; Garnier, Jean-Christophe (CERN) ; Krol, Kamil (CERN) ; Osinski, Maciej (CERN) ; Stanisz, Anita (CERN) ; Zerlauth, Markus (CERN)
Today's front-end controllers, which are widely used in CERNs controls environment, feature CPUs with high clock frequencies and extensive memory storage. Their specifications are comparable to low-end servers, or even smartphones. [...]
2018 - 5 p.
- Published in : 10.18429/JACoW-ICALEPCS2017-THPHA153
Fulltext: PDF;
In : International Conference on Accelerator and Large Experimental Physics Control Systems, Barcelona, Spain, 8 - 13 Oct 2017, pp.THPHA153
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8.
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Renovation and extension of supervision software leveraging reactive streams
/ Galilée, Marc-Antoine (CERN) ; Calia, Andrea (CERN) ; Do, Janet (CERN) ; Fuchsberger, Kajetan (CERN) ; Garnier, Jean-Christophe (CERN) ; Krol, Kamil (CERN) ; Osinski, Maciej (CERN) ; Pocwierz, Maciej (CERN) ; Ribeiro, Tiago (CERN) ; Stanisz, Anita (CERN) et al.
Inspired by the recent developments of reactive programming and the ubiquity of the concept of streams in modern software industry, we assess the relevance of a reactive streams solution in the context of accelerator controls. The promise of reactive streams, to govern the exchange of data across asynchronous boundaries at a rate sustainable for both the sender and the receiver, is alluring to most data-centric processes of CERN's accelerators. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-ICALEPCS2017-THPHA152
Fulltext: PDF;
In : International Conference on Accelerator and Large Experimental Physics Control Systems, Barcelona, Spain, 8 - 13 Oct 2017, pp.THPHA152
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9.
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Multi-criteria partitioning on distributed file systems for efficient accelerator data analysis and performance optimization
/ Boychenko, Serhiy (CERN) ; Galilee, Marc-Antoine (CERN) ; Garnier, Jean-Christophe (CERN) ; Zenha-Rela, Mario (Coimbra U.) ; Zerlauth, Markus (CERN)
Since the introduction of the MapReduce paradigm, relational databases are being increasingly replaced by more efficient and scalable architectures, in particular in environments where a query will process Terabtes or even Petabytes of data in a single execution. The same tendency is observed at CERN, where data archiving systems for operational accelerator data are already working well beyond their initially provisioned capacity. [...]
2018 - 6 p.
- Published in : 10.18429/JACoW-ICALEPCS2017-THPHA036
Fulltext: PDF;
In : International Conference on Accelerator and Large Experimental Physics Control Systems, Barcelona, Spain, 8 - 13 Oct 2017, pp.THPHA036
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10.
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Tensorics - A Java library for manipulating multi-dimensional data
/ Fuchsberger, Kajetan (CERN) ; Calia, Andrea (CERN) ; Garnier, Jean-Christophe (CERN) ; Gorzawski, Arkadiusz (CERN) ; Hostettler, Michael (CERN) ; Krol, Kamil (CERN)
Accelerator control software often has to handle multi-dimensional data of physical quantities when aggregating readings from multiple devices (e.g. the reading of an orbit in the LHC). [...]
2018 - 6 p.
- Published in : 10.18429/JACoW-ICALEPCS2017-THPHA177
Fulltext: PDF;
In : International Conference on Accelerator and Large Experimental Physics Control Systems, Barcelona, Spain, 8 - 13 Oct 2017, pp.THPHA177
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