CERN Accelerating science

R&D and Studies

Latest additions:
2024-04-05
14:26
FCC-ee Machine Detector Interface Alignment System Concepts / Watrelot, Leonard
This thesis is in the framework of the lepton collider part of the Future Circular Collider project, aiming to be the next flagship project at CERN after the High Luminosity upgrade of the Large Hadron Collider, in 2040. The study focuses on the alignment, and monitoring of the alignment, of some accelerator components located inside the physics detector, close to the collision point. [...]
CERN-THESIS-2023-376.- 205 p. Fulltext: PDF; External link: Approve this document (restricted)

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2024-03-19
06:18
Challenges of the FCC-ee civil engineering studies / Bromiley, L (CERN) ; Cunningham, R (CERN)
The European Organisation for Nuclear Research (CERN) isplanning a Future Circular Collider (FCC), to be the successor ofthe current Large Hadron Collider (LHC). Significant civilengineering is required to accommodate the physics experiments andassociated infrastructure. [...]
2024 - 9 p. - Published in : JINST 19 (2024) T02005 Fulltext: PDF;

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2024-03-14
17:53
Influence of Axial Strain and Transverse Compressive Load on Critical Current of Nb3Sn Wires for the FCC / Nakamoto, M (Sokendai, Tsukuba) ; Sugano, M (KEK, Tsukuba) ; Dhakarwal, M (KEK, Tsukuba) ; Ogitsu, T (KEK, Tsukuba) ; Nishijima, G (Tsukuba Magnet Lab.) ; Awaji, S (Tohoku U. (main)) ; Kawashima, S (Kobe Steel) ; Hopkins, S C (CERN) ; Ballarino, A (CERN)
Nb 3 Sn superconducting wires are under consideration for producing high field accelerator magnets for the proposed Future Circular Collider (FCC) due to their high critical field. R&D; studies are ongoing worldwide with a target non-Cu critical current density ( Jc ) of 1500 A/mm 2 at 4.2 K, 16 T. [...]
2023 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 8400505
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022, pp.8400505

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2024-03-05
12:20
Radiation Effects and System-Level Testing: Application to Wireless Communications / Zimmaro, Alessandro
CERN's electronics systems, both in the accelerator and in experiments, are exposed to the peculiar harsh radiation environments induced by the different particle accelerators [...]
CERN-THESIS-2024-013 - UNIVERSITÉ DE MONTPELLIER : UNIVERSITÉ DE MONTPELLIER, 2024-03-05. - 280 p.


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2024-03-05
10:19
FCC circumference studies based on RF synchronization / Zhang, L H (Hefei, CUST) ; Damerau, H (CERN) ; Karpov, I (CERN) ; Vanel, A L (CERN)
As the study of the Future Circular Collider (FCC) projectprogresses, the choice of the exact circumference of the acceleratortunnel becomes essential. It is defined by RF-related constraints,mainly the RF frequency of the FCC-hh, as well as the revolutionfrequency ratios with the hadron injector. [...]
2024 - 10 p. - Published in : JINST 19 (2024) T02007 Fulltext: PDF;

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2024-03-05
10:19
Training-free performance of the wax-impregnated SuShi septum magnet / Barna, D (Wigner RCP, Budapest) ; Brunner, K (Wigner RCP, Budapest) ; Novák, M (Wigner RCP, Budapest) ; Borburgh, J (CERN) ; Atanasov, M (CERN) ; Lackner, F (CERN) ; Olvegård, M (Uppsala U.) ; Pepitone, K (Uppsala U.) ; Santiago Kern, R (Uppsala U.) ; Svanberg, C (Uppsala U.) et al.
In the framework of the Future Circular Collider Study a new septum magnet concept, nicknamed ‘SuShi’ has been developed, and a prototype was built at Wigner Research Center for Physics, and tested at the FREIA facility of Uppsala University in April 2023. The concept uses a canted cosine theta (CCT)-like superconducting magnet and a passive superconducting shield to create a zero-field and high-field region within its aperture. [...]
2024 - 12 p. - Published in : Supercond. Sci. Technol. 37 (2024) 045006 Fulltext: PDF;

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2024-03-05
10:19
Geodetic, survey and alignment challenges of the FCC-ee / Mainaud Durand, H (CERN) ; Watrelot, L (CERN ; LSPM, Paris) ; Weyer, B (CERN)
At CERN, each generation of particle accelerators led to theimplementation of new geodetic, survey and alignment methodologiesfollowing the increasing accuracy requirements and the evolution ofsurvey instruments. The Future Circular Collider (FCC), representingthe next generation of particle accelerator, will in its turnrequire new development to ensure the accomplishment of theconstruction of the 91 km tunnel and the correct positioning of themachine components. [...]
2024 - 6 p. - Published in : JINST 19 (2024) T02006 Fulltext: PDF;

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2024-03-05
10:19
Collimation simulations for the FCC-ee / Abramov, A (CERN) ; Broggi, G (CERN) ; Bruce, R (CERN) ; Carlier, F (CERN) ; Hofer, M (CERN) ; Iadarola, G (CERN) ; Nevay, L J (CERN) ; Pieloni, T (Ecole Polytechnique, Lausanne) ; Rakic, M (CERN) ; Redaelli, S (CERN) et al.
The collimation system of the Future Circular Collider,operating with leptons (FCC-ee), must protect not only theexperiments against backgrounds, but also the machine itself frombeam losses. With a 17.8 MJ stored energy of the electron andpositron beams, they are highly destructive, and beam losses risk tocause damage or a quench of superconducting elements. [...]
2024 - 14 p. - Published in : JINST 19 (2024) T02004 Fulltext: PDF;

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2024-03-05
10:19
First considerations on the supporting structures of FCC-ee booster and collider in the arc regions / Carra, F (CERN) ; Baudin, L (CERN) ; Bauche, J (CERN) ; Artoos, K (CERN) ; Atieh, S (CERN) ; Bertarelli, A (CERN) ; Brunner, O (CERN) ; Capatina, O (CERN) ; Chance, A (Saclay) ; Chemli, S (CERN) et al.
In 2022, the FCC Feasibility Study management mandated aworking group to analyse the best configuration of the FCC-ee tunnelin the arc regions, in view of the construction of a mock-up of thearc half-cell. One of the main and most challenging goals of thestudy, named FCC-ee Arc Half-Cell Mock-up Project, was toperform a preliminary investigation on the principles of supportingthe Short-Straight Sections and dipoles of the half-cells, both forthe booster and for the collider machines. [...]
2024 - 7 p. - Published in : JINST 19 (2024) T02008 Fulltext: PDF;

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2024-01-20
08:08
Status on the Development of the Nb$_3$Sn 12 T Falcon Dipole for the FCC-hh- / Valente, R U (LASA, Segrate) ; Ballarino, A (CERN) ; Bersani, A (INFN, Genoa) ; Bracco, M (INFN, Genoa ; Genoa U.) ; Burioli, S (INFN, Genoa) ; Caiffi, B (INFN, Genoa) ; Matteis, E De (LASA, Segrate) ; Farinon, S (INFN, Genoa) ; Gagno, A (INFN, Genoa ; Genoa U.) ; Levi, F (INFN, Genoa ; Genoa U.) et al.
The quest for advancing science and technology continues with the Future Circular Collider (FCC), which requires 16 T bending dipoles to be installed along its 100 km tunnel to achieve a center-of-mass energy of 100 TeV, in its hadron-hadron version. The promising Nb$_3$Sn technology for superconducting magnets presents a potential solution for large-scale production. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4900405

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