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Insertion devices
/ Bernhard, Axel (speaker) (KIT)
Insertion devices are installed in storage rings and linac-driven light sources to produce radiation or to enable an interaction of the particle beam with the radiation field. The intended use case for the generated radiation drives the design requirements for the insertion device. [...]
2023 - 3727.
CERN Accelerator School; CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria
External links: Talk details; Event details
In : CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria
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2.
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The CompactLight Design Study
/ D'Auria, G (Sincrotrone Trieste) ; Adli, E (Oslo U.) ; Aicheler, M (Helsinki Inst. of Phys.) ; Aksoy, A (Ankara U.) ; Alesini, D (Frascati) ; Apsimon, R (Daresbury ; Lancaster U.) ; Arnsberg, J (KIT, Karlsruhe) ; Auchettl, R (ASP, Melbourne) ; Bainbridge, A (Daresbury) ; Balazs, K (CERN) et al.
CompactLight is a Design Study funded by the European Union under theHorizon 2020 research and innovation funding programme, with Grant Agreement No. 777431.CompactLight was conducted by an International Collaboration of 23 internationallaboratories and academic institutions, three private companies, and five third parties.The project, which started in January 2018 with a duration of 48 months, aimed to designan innovative, compact, and cost-effective hard X-ray FEL facility complemented by asoft X-ray source to pave the road for future compact accelerator-based facilities. [...]
2024 - 208 p.
- Published in : Eur. Phys. J. Spec. Top. 233 (2024) 1-208
Fulltext: PDF;
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3.
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Investigations on NbTi superconducting racetrack coils under pulsed-current excitations
/ Abusaif, F (KIT, Karlsruhe) ; Bernhard, A (KIT, Karlsruhe) ; Bründermann, E (KIT, Karlsruhe) ; Gancarcik, D (KIT, Karlsruhe ; CERN) ; Glamann, N (KIT, Karlsruhe) ; Grau, A (KIT, Karlsruhe) ; Saez de Jauregui, D (KIT, Karlsruhe) ; Müller, A-S (KIT, Karlsruhe)
One of the key issues in the technology of superconductors is the protection against quenches. When designing a superconductor as a magnet, a coil or even current leads, the design should be made such that the superconductor withstands all operational conditions as fast discharges, pulsed loads or even rapid transient background fields.Computational modeling of pulsed-current characterization in a self-field NbTi racetrack sample coil has been performed using the finite element modelling software Opera as a step towards understanding the thermal and electromagnetic processes during a quench. [...]
2024 - 7 p.
- Published in : J. Phys. : Conf. Ser.: 2687 (2024) , no. 8, pp. 082015
- Published in : JACoW IPAC: 2023 (2023) , pp. WEPM070
Fulltext: PublicationJACoW - PDF; PublicationIOP - PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.082015
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Design and Manufacturing of an HTS Helical Undulator Demonstrator for Compact FELs
/ Richter, S C (CERN ; KIT, Karlsruhe) ; Ballarino, A (CERN) ; Bernhard, A (KIT, Karlsruhe) ; Müller, A S (KIT, Karlsruhe)
Among all superconducting undulator geometries, a helical undulator provides a very compact geometry and further is more effective in producing synchrotron radiation, providing circularly polarized photons, which are widely usable for synchrotron radiation users. These characteristics make it a very attractive option for realizing more compact free-electron lasers, requiring a combination of short-period and high-field undulators to produce coherent light up to X-rays. [...]
2024 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4101507
Fulltext: PDF;
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5.
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Energy deposition simulations for a damage experiment with superconducting sample coils
/ Abusaif, F (KIT, Karlsruhe) ; Bernhard, A (KIT, Karlsruhe) ; Gancarcik, D (CERN ; KIT, Karlsruhe) ; Glamann, N (KIT, Karlsruhe) ; Gnacadja, E (U. Brussels (main)) ; Grau, A (KIT, Karlsruhe) ; Hernalsteens, C (CERN) ; Jauregui, D (KIT, Karlsruhe) ; Müller, A S (KIT, Karlsruhe) ; Pauwels, L (U. Brussels (main)) et al.
An experiment to study damage caused by the impact of 440 GeV/c protons on sample superconducting racetrack coils made from NbTi and Nb3Sn strands was recently carried out at CERN's HiRadMat facility. This paper reports on the detailed Monte Carlo simulations performed with FLUKA and Geant4 to evaluate the energy deposition of the 440 GeV/c proton beam on the sample coils positioned in the experimental setup. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) WEPM058
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPM058
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Damage experiment with superconducting sample coils - experimental setup and observations during beam impact
/ Gancarcik, D (CERN ; KIT, Karlsruhe) ; Abusaif, F (KIT, Karlsruhe) ; Bordini, B (CERN) ; Bernhard, A (KIT, Karlsruhe) ; Bonura, M (Geneva U.) ; Favre, M (CERN) ; Glamann, N (KIT, Karlsruhe) ; Grau, A (KIT, Karlsruhe) ; Hernalsteens, C (CERN) ; de Jauregui, D Saez (KIT, Karlsruhe) et al.
The damage mechanisms and limits of superconducting accelerator magnets caused by the impact of high-intensity particle beams have been the subject of extensive studies at CERN in the recent years. Recently, an experiment with dedicated racetrack coils made of Nb-Ti and Nb$_3$Sn strands was performed in CERN’s HiRadMat facility. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) WEPM059
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPM059
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7.
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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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8.
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High-Temperature Superconducting Undulator Prototype Coils for Compact Free-Electron Lasers
/ Richter, S C (CERN ; KIT, Karlsruhe) ; Ballarino, A (CERN) ; Bernhard, A (KIT, Karlsruhe) ; Grau, A W (KIT, Karlsruhe) ; de Jauregui, D Saez (KIT, Karlsruhe) ; Müller, A S (KIT, Karlsruhe)
Short-period and high-field undulators are crucial for the production of coherent light up to X-rays in compact free-electron lasers (FELs). Besides, future colliders like CLIC or FCC-ee demand high-field damping wigglers to reach a low beam emittance. [...]
2023 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4100207
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022
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10.
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Radiaton tolerant ATTM-WRTU wireless infrastructure for radiation harsh terrestrial applications
/ Bernhard, Aljaž (SkyLabs, Maribor) ; Selčan, David (SkyLabs, Maribor) ; Rotovnik, Tomaž (SkyLabs, Maribor) ; Gačnik, Dejan (SkyLabs, Maribor) ; Kramberger, Iztok (Maribor U.) ; Danzeca, Salvatore (CERN) ; Furano, Gianluca (ESTEC, Noordwijk)
This paper provides an overview of the challenges and solutions for wireless communications for terrestrial applications applied in radiation harsh environments, by utilising the proven designs used in space applications where radiation tolerance is a must. The specific application of using wireless communication in a particle accelerator environment is discussed. [...]
2021 - 4 p.
- Published in : 10.1109/RADECS53308.2021.9954581
In : Conference on Radiation and its Effects on Components and Systems (RADECS 2021), Vienna, Austria, 13 - 17 Sep 2021, pp.1-4
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