2025-02-28
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FCC-ee positron source from conventional to crystal-based
/ Alharthi, Fahad (KACST, Riyadh ; IJCLab, Orsay) ; Chaikovska, Iryna (IJCLab, Orsay) ; Chehab, Robert (IJCLab, Orsay) ; Mytrochenko, Viktor (IJCLab, Orsay) ; Wang, Yuting (IJCLab, Orsay) ; Zhao, Yongke (CERN) ; Bandiera, Laura (INFN, Ferrara) ; Canale, Nicola (INFN, Ferrara) ; Guidi, Vincenzo (INFN, Ferrara ; Ferrara U.) ; Malagutti, Lorenzo (INFN, Ferrara) et al.
The high-luminosity requirement in future lepton colliders imposes a need for a high-intensity positron source. [...]
arXiv:2502.06481.
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6.
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2025-02-26
16:43 |
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2025-02-26
06:01 |
Experimental investigation under laser-driven shocks of the dynamic behavior of materials for beam-intercepting devices in particle accelerators
/ Accettura, C (CERN) ; Baudin, L (CERN) ; Bertarelli, A (CERN) ; Brabetz, C (Darmstadt, GSI) ; Carra, F (CERN) ; Martynenko, A S (Darmstadt, GSI) ; Morena, A (Polytech. Turin) ; Moros, A (CERN) ; Peroni, L (Polytech. Turin) ; Scapin, M (Polytech. Turin) et al.
In the present work the results of an extensive experimental campaign in which laser-shocks were used to assess the mechanical strength of graphitic materials are
presented. The aim of the project was to study innovative advanced materials used in high energy particle accelerators for beam intercepting devices (BIDs), such as
collimators, absorber blocks and dumps. [...]
2024 - 10 p.
- Published in : Results Materials 24 (2024) 100638
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2025-02-26
06:01 |
Dynamic response to short-pulsed U-ion beams of material candidates for vacuum beam windows manufacturing
/ Notari, Lorenzo (Polytech. Turin) ; Pasquali, Michele (Rome U.) ; Carra, Federico (CERN) ; Losasso, Marcello (CERN) ; Guardia-Valenzuela, Jorge (CERN) ; Tomut, Marilena (Munster U. ; Darmstadt, GSI)
The introduction of next-generation extremely energetic particle accelerator facilities, such as the High-Luminosity upgrade of the LHC (HL-LHC) or the proposed future circular collider (FCC), will dramatically increase the energy stored in the circulating particle beams. This will critically affect the thermo-physical and mechanical properties of the materials adopted, possibly compromising their reliability during the operating lifetime. [...]
2024 - 26 p.
- Published in : Heliyon 10 (2024) 40707
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2025-02-26
06:01 |
Quench Protection Analysis of 20 T Hybrid Accelerator Dipole Magnets
/ Ravaioli, E (CERN) ; Ambrosio, G (Fermilab) ; Araujo, D (PSI, Villigen) ; D'Addazio, M (LBNL, Berkeley ; Polytech. Turin) ; Ferracin, P (LBNL, Berkeley) ; Gupta, R (Brookhaven Natl. Lab.) ; Marinozzi, V (Fermilab) ; Rochepault, E (IRFU, Saclay ; U. Paris-Saclay) ; Vallone, G (LBNL, Berkeley) ; Verweij, A (CERN) et al.
The US Magnet Development Program is leading an effort to design and manufacture a 20 T accelerator dipole magnet. Various designs are under development featuring cos-theta, block-coil, or common-coil geometries. [...]
FERMILAB-PUB-24-0949-TD.-
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4701005
Fulltext: document - PDF; ca512b4b77b9e4bb2d2a8d74148c7725 - PDF; External link: Fermilab Accepted Manuscript
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2025-02-26
06:01 |
Design and experimental verification of a bunch length monitor based on coherent Cherenkov diffraction radiation
/ Davut, C (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Xia, G (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Apsimon, O (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; McGunigal, J (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Karataev, P (JAI, UK) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) ; Senes, E (CERN)
This paper presents the design and experimental commissioning of a noninvasive electron bunch length monitor based on the detection of coherent Cherenkov diffraction radiation (ChDR). The measurement technique effectively eliminates the influence of bunch-by-bunch charge fluctuations, as each detector measures the signal from the same bunch while mitigating the impact of bunch position jitter on the measurements, providing a potential real-time diagnostic tool with significant operational advantages. [...]
2025 - 13 p.
- Published in : Phys. Rev. Res. 7 (2025) 013193
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2025-02-26
06:01 |
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2025-02-26
06:01 |
Residual resistance ratio measurement system for Nb$_3$Sn wires extracted from Rutherford cables
/ Pong, Ian (LBNL, Berkeley) ; Baskys, Algirdas (LBL, Berkeley ; CERN) ; Sanabria, Charlie (LBL, Berkeley ; MIT) ; Naus, Michael (LBNL, Berkeley) ; Myers, Scott (LBNL, Berkeley) ; Pan, Heng (LBL, Berkeley ; UESTC, Chengdu) ; Lee, Jonathan (LBL, Berkeley ; Natl. High Mag. Field Lab.) ; Wang, Li (LBNL, Berkeley) ; Taylor, Jordan (LBL, Berkeley) ; Turqueti, Marcos (LBNL, Berkeley) et al.
Residual resistance ratio (RRR) of superconducting strands is an important parameter for magnet electrical stability. RRR serves as a measure of the low-temperature electrical conductivity of the copper within a conductor that has a copper stabilization matrix. [...]
2024 - 9 p.
- Published in : Cryogenics 146 (2025) 104002
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2025-02-26
06:01 |
Assessing the Performance of Deep Learning Predictions for Dynamic Aperture of a Hadron Circular Particle Accelerator
/ Di Croce, Davide (EPFL, Lausanne, FSL) ; Giovannozzi, Massimo (CERN) ; Montanari, Carlo Emilio (Manchester U.) ; Pieloni, Tatiana (EPFL, Lausanne, FSL) ; Redaelli, Stefano (CERN) ; Van der Veken, Frederik F (CERN)
Understanding the concept of dynamic aperture provides essential insights into nonlinear beam dynamics, beam losses, and the beam lifetime in circular particle accelerators. This comprehension is crucial for the functioning of modern hadron synchrotrons like the CERN Large Hadron Collider and the planning of future ones such as the Future Circular Collider. [...]
2024 - 22 p.
- Published in : Instruments 8 (2024) 50
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2025-02-26
06:01 |
Physics-driven lumped-element modelling for impedance simulations of superconducting accelerator magnets
/ Janitschke, M (CERN ; U. Rostock) ; Bednarek, M (CERN) ; Ravaioli, E (CERN) ; Verweij, A P (CERN) ; Willering, G (CERN) ; van Rienen, U (U. Rostock)
Superconducting magnets in particle accelerators are subject to various forces, radiation, high voltages, or thermal gradients. These can cause failures such as inter-turn shorts, which can be very challenging to detect after the magnets are installed in the accelerator. [...]
2024 - 22 p.
- Published in : Supercond. Sci. Technol. 38 (2025) 015013
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