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R&D and Studies

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2024-05-15
15:43
Non-invasive Beam Diagnostic Development for FCC using Cherenkov Diffraction Radiation in Dielectric Materials / Schloegelhofer, Andreas
Cherenkov diffraction radiation (ChDR) refers to the emission of electromagnetic radiation when a charged particle travels in the vicinity of dielectric matter, and the particle’s velocity exceeds the phase velocity of electromagnetic radiation in the dielectric. Unlike the better-known Cherenkov radiation, ChDR can be utilized as a non-invasive technique, as the charged particle beam does not directly traverse the material. [...]
CERN-THESIS-2024-054.- 204 p. Fulltext: PDF; External link: Approve this document (restricted)

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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 [...]
CERN-THESIS-2023-376 - 205 p.


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2024-04-03
06:43
Subscale Stress-Managed Common Coil Design / Araujo, D M (PSI, Villigen) ; Auchmann, B (PSI, Villigen ; CERN) ; Brem, A (PSI, Villigen) ; Daly, M (PSI, Villigen) ; Michlmayr, T (PSI, Villigen) ; Müller, C (PSI, Villigen) ; Garcia-Rodrigues, H (PSI, Villigen) ; Sotnikov, D (PSI, Villigen) ; Milanese, A (CERN)
In the context of the High-Field Magnet (HFM) Programme, hosted at CERN, and the Swiss Accelerator Research and Technology (CHART) Initiative, hosted at PSI, the Magnet Development (MagDev) project aims to contribute to the Future Circular Collider (FCC) studies through, among others: (i) research on enabling technologies and (ii) high-field Low Temperature superconducting (LTS) and High Temperature Superconducting (HTS) magnets. After a first experience with the CD1 magnet, a Canted-Cosine-Theta (CCT) Nb3Sn demonstrator, a roadmap has been established with milestones ranging from enabling technologies tested in powered samples and coils, to ultimate-field and hybrid LTS/HTS short magnets. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4003905

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2024-03-26
07:03
Effect of Irradiation Temperature and Atmosphere on Aging of Epoxy Resins for Superconducting Magnets / Parragh, David Mate (CERN) ; Scheuerlein, Christian (CERN) ; Martin, Noémie (Lyon U.) ; Piccin, Roland (CERN) ; Ravotti, Federico (CERN) ; Pezzullo, Giuseppe (CERN) ; Koettig, Torsten (CERN) ; Lellinger, Dirk (Unlisted, DE)
The superconducting magnets of future particle accelerators will be exposed to high irradiation doses at cryogenic temperatures. To investigate the effect of irradiation temperature and atmosphere on the aging behavior, we have characterized the changes in thermomechanical properties of six epoxy resins for potential use in superconducting magnets after irradiation up to 20 MGy in ambient air, inert gas, and liquid helium. [...]
2024 - 15 p. - Published in : MDPI Polymers 16 (2024) 407 Fulltext: PDF;

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2024-03-26
07:03
Nonlinear Surface Impedance of HTS in High Magnetic Fields / Vaglio, Ruggero (CNR-SPIN, Naples) ; Krkotić, Patrick (CERN) ; Calatroni, Sergio (CERN)
Recently envisaged high-temperature superconductor (HTS) applications rely on their radio-frequency properties in very high magnetic fields. As an example, coating of surfaces facing particle beams with HTS for reducing the beam coupling impedance is being considered for the next generation of hadron colliders, such as the FCC-hh at CERN, where HTS would be exposed to the high-frequency wakefields generated by the particle bunches and to the strong field (>16 T) of the steering magnets. [...]
2024 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 3500604 Fulltext: PDF;

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2024-03-23
06:31
Design of an electron source for the FCC-ee with top-up injection capability / Vostrel, Zdenek (CERN ; Prague, Tech. U.) ; Doebert, Steffen (CERN)
The Future Circular Collider (FCC) study at CERN aims for a 100 TeV range proton collider. As a first phase of the project, an electron–positron collider (FCC-ee) in the same tunnel with a large circumference of 90 km is investigated. [...]
2024 - 8 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1063 (2024) 169261

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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 - Montpellier U., 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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Fokus na:
PBC - Physics Beyond Colliders (79)
Future Circular Collider Documents (189)
Muon Collider study (109)
NIMMS - Next Ion Medical Machine Study (17)