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Radiation Environment in the Large Hadron Collider During the 2022 Restart and Related RHA Implications
/ Biłko, Kacper (CERN ; Lab. Hubert Curien, St. Etienne) ; García Alía, Rubén (CERN) ; Aguiar, Ygor (CERN) ; Danzeca, Salvatore (CERN) ; Di Francesca, Diego (CERN) ; Gilardoni, Simone (CERN) ; Girard, Sylvain (ICJ, Lyon ; IUF, Paris) ; Ricci, Daniel (CERN) ; Sebban, Marc (Lab. Hubert Curien, St. Etienne) ; Uznanski, Slawosz (CERN)
In this work, we present the radiation environment of the large hadron collider (LHC), focusing on the year 2022, the first after the Long Shutdown 2 (LS2) (2019–2021). We highlight the most prominent radiation-level changes with respect to the 2018 operation, commenting on the related Radiation Hardness Assurance implications. [...]
2024 - 11 p.
- Published in : IEEE Trans. Nucl. Sci. 71 (2024) 607-617
Fulltext: PDF;
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Development of a Miniaturized Reference Dosimeter Payload for SmallSat Applications
/ Tscherne, Christoph (Seibersdorf, Reaktorzentrum) ; Wind, Michael (Seibersdorf, Reaktorzentrum) ; Huber, Lukas (Seibersdorf, Reaktorzentrum) ; Latocha, Marcin (Seibersdorf, Reaktorzentrum) ; Coronetti, Andrea (CERN) ; Slipukhin, Ivan (CERN ; Otwock-Swierk, Inst. Atomic Energy) ; Uznanski, Slawosz (Otwock-Swierk, Inst. Atomic Energy) ; Alia, Ruben Garcia (CERN) ; Hörmer, Andreas (Graz, Tech. U.) ; Zeif, Reinhard (Graz, Tech. U.) et al.
We present the TID Reference Dosimeter and SEU Assessment System, an autonomous, miniaturized dosimetry payload for SmallSat applications. We provide information on the concept, performance and the current status of its development, including preparations for the payload’s first in-orbit demonstration onboard the Austrian CubeSat PRETTY..
2021 - 6 p.
- Published in : 10.1109/RADECS53308.2021.9954463
In : Conference on Radiation and its Effects on Components and Systems (RADECS 2021), Vienna, Austria, 13 - 17 Sep 2021, pp.1-6
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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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FGC3.2: A New Generation of Embedded Controls Computer for Power Converters at CERN
/ Page, Stephen (CERN) ; Ghabrous Larrea, Carlos (CERN) ; King, Quentin (CERN) ; Todd, Benjamin (CERN) ; Uznanski, Slawosz (CERN) ; Zielinski, Dariusz (CERN)
Modern power converters (power supplies) at CERN are controlled by devices known as Function Generator/Controllers (FGCs), which are embedded computer systems providing function generation, current and field regulation, and state control. FGCs were originally conceived for the LHC in the early 2000s, though later generations are now increasingly being deployed in the accelerators in the LHC Injector Chain (Linac4, Booster, Proton Synchrotron and SPS) to replace obsolete equipment. [...]
2020 - 5 p.
- Published in : 10.18429/JACoW-ICALEPCS2019-MOPHA106
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.MOPHA106
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MD3310 – Complex tune shift measurement at flat-top in the LHC
/ Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Biancacci, Nicolo (CERN) ; Buffat, Xavier (CERN) ; Giordano, Francesco (Universita e sezione INFN di Napoli (IT)) ; Hemelsoet, Georges-Henry (CERN) ; Levens, Tom (CERN) ; Metral, Elias (CERN) ; Mounet, Nicolas (CERN) ; Ribes Metidieri, Ariadna (University of Barcelona (ES)) et al.
This note summarises the MD3310 activity. [...]
CERN-ACC-NOTE-2020-0053.
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2020. - 6 p.
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Beam-induced heat loads on the LHC arc beam screens with different beam and machine configurations: experiments and comparison against simulations
/ Iadarola, Giovanni (CERN) ; Skripka, Galina (Joint Institute for Nuclear Research (RU)) ; Albert, Markus (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Andujar, Oscar (CERN) ; Antipov, Sergey (CERN) ; Arduini, Gianluigi (CERN) ; Argyropoulos, Theodoros (CERN) ; Bradu, Benjamin (CERN) ; Bartosik, Hannes (CERN) et al.
Electron cloud (e-cloud) effects are among the main performance limitations for the operation of the Large Hadron Collider (LHC) with 25 ns bunch spacing. [...]
CERN-ACC-NOTE-2019-0057.
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2019. - 50 p.
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Operation and performance of the CERN Large Hadron Collider during proton Run 2
/ Steerenberg, Rende (CERN) ; Albert, Markus (CERN) ; Alemany-Fernández, Reyes (CERN) ; Argyropoulos, Theodoros (CERN) ; Bravin, Enrico (CERN) ; Crockford, Guy (CERN) ; Dumont, Jean-Charles (CERN) ; Fuchsberger, Kajetan (CERN) ; Giachino, Rossano (CERN) ; Giovannozzi, Massimo (CERN) et al.
Run 2 of the CERN Large Hadron Collider (LHC) started in April 2015 and was successfully completed on 10th December 2018, achieving largely all goals set in terms of luminosity production. Following the first two-year long shutdown and the re-commissioning in 2015 at 6.5 TeV, the beam performance was increased to reach a peak luminosity of more than twice the design value and a colliding beam time ratio of 50%. [...]
CERN-ACC-2019-067.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP031
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP031
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Intensity dependance of the train instability threshold and high pile-up test with 12b trains (MD3294)
/ Buffat, Xavier (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey (CERN) ; Bartosik, Hannes (CERN) ; Crockford, Guy (CERN) ; Furuseth, Sondre (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Iadarola, Giovanni (CERN) ; Levens, Tom (CERN) ; Metral, Elias (CERN) ; Mounet, Nicolas (CERN) et al.
As signs of electron cloud driven instabilities at top energy were observed in MDs in 2017 even with short trains(12b), an additional experiment was performed in 2018 to assess the intensity scaling of this instability mechanism using high intensity 12b trains available from the existing injector chain, i.e [...]
CERN-ACC-NOTE-2019-0027.
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2019. - 8 p.
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Qualification of Electronic Systems for Radiation Environments of High Energy Accelerator
/ Uznanski, Slawosz (CERN) ; Garcia Alia, Ruben (CERN) ; Brugger, Markus (CERN) ; Cangialosi, Chiara (CERN) ; Danzeca, Salvatore (CERN) ; Todd, Benjamin (CERN)
Unlike a typical Radiation Hardness Assurance (RHA) methodology, this work presents a system level radiation qualification of a complex electronic system prior to component radiation characterization tests. Such a top-down approach reduces the beam time needed for qualification of components by carefully analyzing failure modes observed on the system level and performing only a subset of component tests for identified cases. [...]
2018 - 5 p.
- Published in : 10.23919/MIXDES.2018.8436726
In : 25th International Conference on Mixed Design of Integrated Circuits and System, Gdynia, Poland, 21 - 23 Jun 2018, pp.34-38
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