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All CERN Accelerators documents

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Announcement
This new collection aggregates CERN accelerator-related documents on CDS. It will continuously be enriched and improved in the near future.
Latest additions:
2022-05-17
20:50
Applying Model Checking to Highly-Configurable Safety Critical Software: The SPS-PPS PLC Program / Fernández Adiego, Borja (CERN) ; Blanco Viñuela, Enrique (CERN) ; Havart, Frederic (CERN) ; Ladzinski, Tomasz (CERN) ; Lopez-Miguel, Ignacio D (CERN) ; Tournier, Jean-Charles (CERN)
An important aspect of many particle accelerators is the constant evolution and frequent configuration changes that are needed to perform the experiments they are designed for. This often leads to the design of configurable software that can absorb these changes and perform the required control and protection actions. [...]
2022 - 5 p. - Published in : JACoW ICALEPCS 2021 (2022) 759-763 Fulltext: PDF;
In : 18th International Conference on Accelerator and Large Experimental Physics Control Systems, Online, 18 - 22 Oct 2021, pp.759-763

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2022-05-17
20:50
Characterization of data compression across CPU platforms and accelerators / Promberger, Laura (CERN ; U. Heidelberg, ZITI) ; Schwemmer, Rainer (CERN) ; Fröning, Holger (U. Heidelberg, ZITI)
The ever increasing amount of generated data makes it more and more beneficial toutilize compression to trade computations for data movement and reduced storagerequirements.Lately,dedicatedacceleratorshavebeenintroducedtooffloadcompres-sion tasks from the main processor. However, research is lacking when it comes to thesystem costs for incorporating compression. [...]
2021 - 17 p. - Published in : 10.1002/cpe.6465 Fulltext: PDF;

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2022-05-17
20:50
Manufacturing technologies and joining methods of metallic thin-walled pipes for use in high pressure cooling systems / McNair, Sophie A M (Bath U.) ; Chaharsooghi, Alborz Shokrani (Bath U.) ; Carnevale, Mauro (Bath U.) ; Rhead, Andrew (Bath U.) ; Onnela, Antti (CERN) ; Daguin, Jerome (CERN) ; Cichy, Kamil (CERN) ; Postema, Hans (Cornell U.) ; Bacchetta, Nicola (CERN) ; French, Thomas (CERN) et al.
Small diameter thin-walled pipes, typically with a diameter less than 20 mm and a ratio of outer diameter to wall thickness is 20 or above, have increasingly become a key value adding factor for a number of industries including medical applications, electronics and chemical industries. In high-energy physics experiments, thin-walled pipes are needed in tracking detector cooling systems where the mass of all components needs to be minimised for physics measurement reasons. [...]
2021 - 15 p. - Published in : Int. J. Adv. Manuf. Technol. 118 (2021) 667-681 Fulltext: PDF;

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2022-05-17
20:50
A semi-empirical model for preheater design to trigger CO$_2$ boiling for detector cooling / Baldinelli, G (INFN, Perugia ; U. Perugia (main)) ; French, T (CERN) ; Bianchi, F (INFN, Perugia ; Perugia U.) ; Daguin, J (CERN) ; Onnela, A (CERN) ; Tropea, P (CERN)
The fluid properties of CO$_2$ make it an ideal medium for the cooling of tracking detectors in experiments at particle accelerators. Detectors such as the Compact Muon Solenoid Outer Tracker at CERN will be cooled to a nominal temperature of -35 °C with CO$_2$ cooling to ensure the longevity of the silicon sensors. [...]
2021 - 10 p. - Published in : Int. J. Refrigeration 128 (2021) 12-21

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2022-05-17
20:50
Very high upper critical fields and enhanced critical current densities in Nb$_3$Sn superconductors based on Nb–Ta–Zr alloys and internal oxidation / Buta, F (U. Geneva (main)) ; Bonura, M (U. Geneva (main)) ; Matera, D (U. Geneva (main)) ; Bovone, G (U. Geneva (main)) ; Ballarino, A (CERN) ; Hopkins, S C (CERN) ; Bordini, B (CERN) ; Chaud, X (Natl. High Mag. Field Lab.) ; Senatore, C (U. Geneva (main))
The inhibition of Nb$_3$Sn grain growth in the presence of ZrO$_2$ nanoparticles appears to be one of the most promising method for pushing the critical current densities of Nb$_3$Sn superconducting wires to levels that meet the requirements set for the Future Circular Collider. We have investigated the effect of ZrO$_2$ nanoparticles formed by the internal oxidation of Zr on the superconducting properties and microstructure of Nb3Sn formed from Nb-1 wt%Zr, Nb-7.5 wt%Ta, Nb-7.5 wt%Ta-1 wt%Zr and Nb-7.5 wt%Ta-2 wt%Zr alloys. [...]
2021 - 14 p. - Published in : J. Phys. Mater. 4 (2021) 025003 Fulltext: PDF;

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2022-05-17
20:50
R2D2, the CEA Graded Nb$_3$Sn Research Racetrack Dipole Demonstrator Magnet / Calvelli, Valerio (IRFU, Saclay) ; Mallon, Philip (LBNL, Berkeley) ; Durante, Maria (IRFU, Saclay) ; Felice, Helene (IRFU, Saclay) ; Rochepault, Etienne (IRFU, Saclay) ; Manil, Pierre (IRFU, Saclay) ; Minier, Gilles (IRFU, Saclay) ; Rifflet, Jean-Michel (IRFU, Saclay) ; Perez, Juan (CERN)
As a part of a collaborative effort with CERN on the long road to FCC-hh, CEA is developing a 1.4 m-long single aperture short dipole demonstrator. This Nb$_3$Sn block dipole, named F2D2, is foreseen to produce 15.5 T with a 14% margin at 1.9 K, and will use a shell-based support structure. [...]
2021 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 31 (2021) 1-6

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2022-05-17
20:50
Optimization of the High Order Correctors for HL-LHC Toward the Series Production / Statera, Marco (INFN, Milan) ; Alessandria, Franco (INFN, Milan ; Milan U.) ; Bellomo, Giovanni (INFN, Milan ; Milan U.) ; Broggi, Francesco (INFN, Milan) ; Imeri, Luca (INFN, Milan) ; Leone, Augusto (INFN, Milan) ; Mariotto, Samuele (INFN, Milan ; Milan U.) ; Paccalini, Antonio (INFN, Milan) ; Pasini, Alessandro (INFN, Milan) ; Pedrini, Danilo (INFN, Milan) et al.
INFN is developing at the LASA lab (Milano, Italy) the High Order (HO) corrector magnets for the High Luminosity-LHC (HL-LHC) project, which will equip the interaction regions. Five prototypes, from skew quadrupole to dodecapole, have been designed and tested at LASA. [...]
2021 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 31 (2021) 1-5

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2022-05-17
20:50
An Evaluation of Schneider M580 HSBY PLC Redundancy in the R744 System A Cooling Unit / Teixeira, Daniella (Cape Town U.) ; Davoine, Loïc (CERN) ; Hulek, Wojciech (CERN) ; Zwalinski, Lukasz (CERN)
The Detector Technologies group at CERN has developed a 2-stage transcritical R744 cooling system as a service for future detector cooling. This is the first system in operation at CERN where Schneider HSBY (Hot Standby) redundant PLCs are used. [...]
2022 - 3 p. - Published in : JACoW ICALEPCS 2021 (2022) 484-486 Fulltext: PDF;
In : 18th International Conference on Accelerator and Large Experimental Physics Control Systems, Online, 18 - 22 Oct 2021, pp.484-486

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2022-05-17
15:15
Full simulation and performance of a standard iron warm muon shield with tuned return yoke / Ferro-Luzzi, Massimiliano (CERN) /SHiP Collaboration
Full simulation and performance of a standard iron warm muon shield with tuned return yoke
CERN-SHiP-INT-2022-007.- Geneva : CERN, 2022

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2022-05-16
17:12
Renovation of the Trigger Distribution in CERN’s Open Analogue Signal Information System Using White Rabbit / Lampridis, Dimitrios (CERN) ; Gingold, Tristan (CERN) ; Michalik, David (CERN ; Aalborg U.) ; Poscia, Aurelien (CERN) ; Serans, Miguel (CERN) ; Shukla, Mamta (CERN) ; Pereira da Silva, Tiago (CERN)
The Open Analogue Signal Information System (OASIS) acts as a distributed oscilloscope system that acquires signals from devices across the CERN accelerator complex and displays them in a convenient, graphical way. Today, the OASIS installation counts over 500 multiplexed digitisers, capable of digitising more than 5000 analogue signals and offers a selection of more than 250 triggers for the acquisitions. [...]
2022 - 8 p. - Published in : JACoW ICALEPCS 2021 (2022) 839-846 Fulltext: PDF;
In : 18th International Conference on Accelerator and Large Experimental Physics Control Systems, Online, 18 - 22 Oct 2021, pp.839-846

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