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All CERN Accelerators documents

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2023-05-27
09:54
Techniques to seed the self-modulation instability of a long proton bunch in plasma / Verra, L. (CERN) ; Della Porta, G. Zevi (CERN ; Munich, Max Planck Inst.) ; Gschwendtner, E. (CERN) ; Bergamaschi, M. (Munich, Max Planck Inst.) ; Muggli, P. (Munich, Max Planck Inst.)
The Advanced Wakefield Experiment (AWAKE) at CERN relies on the seeded Self-Modulation (SM) of a long relativistic proton bunch in plasma to accelerate an externally injected MeV witness electron bunch to GeV energies. [...]
arXiv:2305.00431. - 4 p.
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2023-05-26
04:31
Using the LHeC ERL to generate high-energy photons / Mirian, Najmeh Sadat (Aichi, Inst. Molecular Sci.) ; Salehi, Elham (Aichi, Inst. Molecular Sci.) ; Zimmermann, Frank (CERN)
The Large Hadron electron Collider (LHeC) is a proposed future particle physics project colliding 60 GeV electrons from a six-pass recirculating energy-recovery linac (ERL) with 7 TeV protons stored in the LHC. [...]
arXiv:2305.14893. -
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2023-05-25
06:16
Commissioning of the LHC Injectors Upgrade fast wire scanners and first experimental results / Di Carlo, S (CERN) ; Emery, J (CERN) ; Andreazza, W (CERN) ; Belohrad, D (CERN) ; Esteban Felipe, J C (CERN) ; Goldblatt, A (CERN) ; Gudkov, D (CERN) ; Guerrero, A (CERN) ; Jackson, S (CERN) ; Lacarrere, G O (CERN) et al.
The LHC Injectors Upgrade (LIU) program included new fast beam wire scanners (BWS) to meet the requirements of the higher brightness and intensity High Luminosity LHC (HL-LHC) beams. Seventeen LIU BWS have been installed during the LHC second long shutdown (LS2) and they are currently used in the daily operations of the LHC injectors. [...]
2023 - 14 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1053 (2023) 168328

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2023-05-25
06:16
3D Conceptual Design of R2D2, the Research Racetrack Dipole Demonstrator / Rochepault, E (IRFU, Saclay) ; Calvelli, V (IRFU, Saclay) ; Durante, M (IRFU, Saclay) ; Felice, H (IRFU, Saclay ; CERN) ; Mallon, P (IRFU, Saclay) ; Manil, P (IRFU, Saclay) ; Minier, G (IRFU, Saclay) ; Perraud, S (IRFU, Saclay) ; Perez, J C (CERN)
R2D2, the Research Racetrack Dipole Demonstrator, is a short model being developed within a collaboration between CEA Paris-Saclay and CERN. The goal of the program is to develop key technologies for future high field 16 T Nb3Sn magnets for particle colliders. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4004605
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4004605

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2023-05-25
06:16
Fabrication and Power Test of Last MCBXFB Magnets / Jardim, Carla Martins (Madrid, CIEMAT) ; Alcázar, C (Madrid, CIEMAT) ; Domínguez, M A (Madrid, CIEMAT) ; Durán, O (Madrid, CIEMAT) ; Estévez, A (Madrid, CIEMAT) ; García-Matos, J A (Madrid, CIEMAT ; CERN) ; García-Tabarés, L (Madrid, CIEMAT) ; González, L (Madrid, CIEMAT) ; Gómez, P (Madrid, CIEMAT) ; Jiménez, J (Madrid, CIEMAT) et al.
MCBXFB magnets are nested orbit combined correctors for the upgrade of the LHC. The first three magnets were manufactured at CIEMAT and assembled at CERN, in the framework of the HL-LHC project. [...]
2022 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4007006
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4007006

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2023-05-25
06:16
Quench Protection of the HL-LHC Hollow Electron Lens Superconducting Solenoid Magnets / Wozniak, Mariusz (CERN) ; Foussat, Arnaud (CERN) ; Yammine, Samer (CERN) ; Steckert, Jens (CERN) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN) ; Kolehmainen, Antti (CERN) ; Redaelli, Stefano (CERN) ; Rossi, Adriana (CERN)
The High-Luminosity LHC (HL-LHC) project is an upgrade of the Large Hadron Collider (LHC) and comprises the installation of two Hollow Electron Lens (HEL) systems, each acting on one beam on both sides of LHC Point 4. The systems aim for a controlled depletion of hadron beam tails and an enhanced hadron beam halo collimation. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4701205
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4701205

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2023-05-25
06:16
Test Results of the MQYYM: A 90 Mm NbTi Quadrupole Magnet Option for HL-LHC / Simon, D (IRFU, Saclay) ; Perraud, S (IRFU, Saclay) ; Felice, H (IRFU, Saclay ; CERN) ; Godon, R (IRFU, Saclay) ; Machado, R Correia (IRFU, Saclay) ; Gheller, J M (IRFU, Saclay) ; Bouziat, D (IRFU, Saclay) ; Stepanov, V (IRFU, Saclay) ; Madur, A (IRFU, Saclay) ; Segreti, M (IRFU, Saclay) et al.
For the HL-LHC project, a 90 mm NbTi cos(2θ) double aperture quadrupole magnet with an operating gradient of 120 T/m at 1.9 K has been designed as an option to replace the 70 mm aperture LHC quadrupole MQY. CEA in collaboration with CERN designed and manufactured a single aperture short model magnet with a magnetic length of 1.215 m at 1.9 K called MQYYM. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4004305
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4004305

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2023-05-25
06:16
Design and Manufacturing of Two High Gradient Quadrupoles Based on Permanent Magnets for the CERN Antiproton Decelerator / Thonet, P A (CERN)
In the frame of the consolidation of the Antiproton Decelerator (AD) Target Area it was decided to replace the two original normal conducting quadrupoles used for the final focusing of the proton beam before the target by two 1.1 m long quadrupoles based on permanent magnet technology. Their gradient is adjustable from 35 to 45 T/m inside an aperture of 60 mm in diameter. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4003005
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4003005

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2023-05-25
06:16
Progress on HTS Undulator Prototype Coils for Compact FEL Designs / Richter, S C (CERN ; KIT, Karlsruhe) ; Ballarino, A (CERN) ; Schoerling, D (CERN) ; Nes, T H (CERN) ; Bernhard, A (KIT, Karlsruhe, IKP) ; Müller, A S (KIT, Karlsruhe)
Compact free-electron lasers require short accelerator structures followed by high peak field and short-period undulators to produce coherent radiation up to hard X-rays. Likewise, future lepton colliders, like CLIC or FCC-ee, require high-field damping wigglers for the creation of low emittance beams. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4100305
In : 15th European Conference on Applied Superconductivity (EUCAS 2021), Online, 5 - 9 Sep 2021, pp.4100305

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2023-05-25
06:16
Superconducting Curved Canted–Cosine–Theta (CCT) for the HIE-ISOLDE Recoil Separator Ring at CERN / Kirby, G (CERN) ; Rodin, V (Liverpool U.) ; Kirby, O (Exeter U.) ; Foussat, A (CERN) ; Resta-Lopez, J (Valencia U.) ; Martel, I (Huelva U.) ; Welsch, C (Liverpool U.)
The ISOLDE facility at CERN delivers the largest range of low-energy radioactive beams, exploited by several detector systems to investigate nuclear properties from the stable isotopes to the very exotic systems close to the neutron or proton drip lines. These studies can largely benefit from the use of a high-resolution fragment separator. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4004105
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4004105

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