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2026-06-06
13:49
Controlling the Transverse Multipole Components in RF Cavity Modes using the Azimuthal Modulation Method / Wroe, Laurence (CERN) ; Wuensch, Walter (CERN) ; Apsimon, Robert (Lancaster U. (main) ; Daresbury)
Recent work introduced a systematic method for designing so-called azimuthally modulated RF cavities that support transverse magnetic modes composed of user-desired multipoles, enabling precision control of the magnitude and orientation of multipolar components in RF cavity design. This paper extends this method to practical implementation by deriving the multipolar expansion of the longitudinal electric field in such RF cavities with beam pipes, as well as the momentum change of ultra-relativistic particles traversing these modes. [...]
arXiv:2504.12780.- 2025 - 15 p. - Published in : Phys. Rev. Accel. Beams 28 (2025) 082002 Fulltext: PDF;

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2026-06-06
13:49
Beam driven plasma instabilities in electron beam ion sources / Thakur, Chandan (Nehru U.) ; Kumar, Sarvesh (Unlisted, IN) ; Jakhar, Niketan (Nehru U.) ; Kashyap, Sandeep (Amity U. ; Indian Inst. Tech., New Delhi) ; Sharma, Jyotsna (Unlisted, IN) ; Kashyap, Manish K (Nehru U.) ; Pahl, Hannes (CERN) ; Wenander, Fredrik (CERN)
Electron beam ion source (EBIS) is capable of generating highly charged ions by ionizing neutral gas atoms using a high-energy electron beam. The generated ions are confined axially and radially by electric and magnetic fields within the breeding region until they are extracted by lowering the axial potential barrier. [...]
2026 - 11 p. - Published in : Phys. Rev. Accel. Beams 29 (2026) 023401 Fulltext: PDF;

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2026-06-06
13:49
Ferrites with a Minimized Secondary Electron Yield / Uren, Robin (U. Dundee) ; Hoffman, Manuel (U. Dundee) ; Din, Amin (U. Dundee) ; Wackerow, Stefan (U. Dundee) ; Neupert, Holger (CERN) ; Pfeiffer, Stephan (CERN) ; Moros, Alice (CERN) ; Barnes, Michael (CERN) ; Favia, Giorgia (CERN) ; Himmerlich, Marcel (CERN) et al.
Ferrites are an essential material in modern industry due to their exceptional magnetic properties and high resistivity. Many applications of ferrites necessitate exposure to high energy electrons, particularly space science and particle accelerators, where charging, multipacting, and electron clouds (ECs) are major issues. [...]
2025 - 12 p. - Published in : Adv. Sci. 12 (2025) 2410083 Fulltext: PDF;

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2026-06-05
06:01
Beam Intercepting Devices / Reggiani, Davide (PSI, Villigen)
Beam Intercepting Devices (BIDs) include targets, scrapers, collimators, protection absorbers and beam dumps. [...]
arXiv:2606.03605. - 2026 - 12.
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2026-06-05
06:01
Beam Instrumentation / Veness, Raymond (CERN)
Beam instrumentation is known as the 'eyes and ears of a particle accelerator'. [...]
arXiv:2606.03658. - 2026 - 12.
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2026-06-04
04:46
Updates on Impedance Studies for the FCC-ee High Energy Booster / Kim, Keon Hee (GANIL) ; Ghribi, Adnan (GANIL) ; Martinez, Santiago (GANIL) ; Bruant, Quentin (Saclay) ; Chance, Antoine (Saclay) ; Dalena, Barbara (Saclay) ; Antuono, Chiara (CERN) ; Gibellieri, Dora (CERN) ; Zannini, Carlo (CERN) ; Zimmermann, Frank (CERN) et al.
Following the Future Circular Collider (FCC) Feasibility Study completion, the impedance model for the FCC-ee High-Energy Booster (HEB) has been significantly expanded beyond the initial copper vacuum pipe resistive wall analysis. [...]
arXiv:2605.29799. - 2026-06 - 4.
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2026-06-03
06:26
Toward a 3D Thermal-Electrodynamic Simulation of Non-Insulated ReBCO Coils: The H-FoSTER Model / Davide, Rinaldoni (CERN) ; Bernardo, Bordini (CERN)
Accurately modeling the transient behavior of non- insulated (NI) ReBCO superconducting coils is crucial for fully as- sessing their potential for high-field magnet applications. 3D Finite Element (FE) models are among the most promising approaches for capturing the thermal-electrodynamics of these coils. [...]
2026 - 1 p. - Published in : IEEE Trans. Appl. Supercond. 36 (2026) 4903007 Fulltext: PDF; External link: Fulltext

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2026-06-03
06:26
Design and development of the P-cubed Target Insertion Device (P$^3$-TID) / Mena-Andrade, R (CERN) ; Grenard, J-L (CERN) ; Guergar, K (CERN) ; Seidenbinder, R (CERN) ; Besana, M I (PSI, Villigen) ; Vallis, N (PSI, Villigen ; CERN) ; Zykova, M (PSI, Villigen) ; Hauenstein, D (PSI, Villigen) ; Zennaro, R (PSI, Villigen) ; Craievich, P (PSI, Villigen) et al.
The P-cubed Target Insertion Device (P$^3$-TID) is a research instrument dedicated to test novel positron source target configurations inside of the proof-of-principle PSI Positron Production (P-cubed or P$^3$) experiment at the Paul Scherrer Institute. [...]
arXiv:2605.19650. - 2026 - 11.
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2026-06-03
06:26
Explicit Turn Resolution with Anisotropic Homogenisation for Efficient 3D Magneto-Thermal Finite-Element Simulation of Large-Scale No-Insulation HTS Magnets / Denis, Louis (Liege U.) ; Schnaubelt, Erik (CERN) ; Dular, Julien (Liege U. ; CERN) ; Wozniak, Mariusz (CERN) ; Vanderheyden, Benoît (Liege U.) ; Geuzaine, Christophe (Liege U.)
No-insulation (NI) and metal-insulation (MI) high-temperature superconducting (HTS) magnets require three-dimensional (3D) models to describe the current distribution around critical current defects. [...]
arXiv:2605.31009. - 2026 - 30.
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2026-06-02
07:20
Time domain stochastic cooling simulations : transverse and filter cooling / Tsiantis, Vasileios (Aristotle U., Thessaloniki) ; Gamba, Davide (CERN) ; Carli, Christian (CERN) ; Sittard, Daniel (CERN) ; Höfle, Wolfgang (CERN) ; Franck Rey, Stephane (CERN)
Stochastic cooling is a technique for reducing the phase space volume of particle beams in accelerators improving the experimental conditions for facilities like Antiproton Decelerator at CERN. We present a stochastic cooling simulation model, for transverse and longitudinal plane. [...]
2026 - 4 p. - Published in : JACoW COOL2025 (2026) FRA2 Fulltext: PDF;
In : 15th International Workshop on Beam Cooling and Related Topics (COOL '25), New York, United States, 27 - 31 Oct 2025, pp.FRA2

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