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1.
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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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2.
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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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3.
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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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4.
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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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5.
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Photostimulated desorption performance of the future circular hadron collider beam screen
/ González, L A (CERN) ; Baglin, V (CERN) ; Chiggiato, P (CERN) ; Garion, C (CERN) ; Kersevan, R (CERN) ; Casalbuoni, S (KIT, Karlsruhe ; European XFEL, Hamburg) ; Grau, A (KIT, Karlsruhe) ; de Jauregui, D Saez (KIT, Karlsruhe) ; Bellafont, I (CELLS - ALBA, LLS) ; Pérez, F (CELLS - ALBA, LLS)
Synchrotron radiation (SR) originated at superconducting bending magnets is known to be at the origin
of several beam detrimental effects related to vacuum instabilities. One of the major challenges in the
design of the vacuum beam pipes of high-energy hadron colliders is the SR coping strategy. [...]
2021 - 9 p.
- Published in : Phys. Rev. Accel. Beams 24 (2021) 113201
Fulltext: PDF;
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6.
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Publication
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7.
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A CLIC Damping Wiggler Prototype at ANKA: Commissioning and Preparations for a Beam Dynamics Experimental Program
/ Bernhard, Axel (KIT, Karlsruhe, IPE) ; Bragin, Alexey (Novosibirsk, IYF) ; Casalbuoni, Sara (KIT, Karlsruhe, IPE) ; Ferracin, Paolo (CERN) ; Garcia Fajardo, Laura (CERN) ; Gerstl, Stefan (KIT, Karlsruhe, IPE) ; Gethmann, Julian (KIT, Karlsruhe, IPE) ; Grau, Andreas (KIT, Karlsruhe, IPE) ; Huttel, Erhard (KIT, Karlsruhe, IPE) ; Khrushchev, Sergey (Novosibirsk, IYF) et al.
In a collaboration between CERN, BINP and KIT a prototype of a superconducting damping wiggler for the CLIC damping rings has been installed at the ANKA synchrotron light source. On the one hand, the foreseen experimental program aims at validating the technical design of the wiggler, particularly the conduction cooling concept applied in its cryostat design, in a long-term study. [...]
CERN-ACC-2016-222; CLIC-Note-1095.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-WEPMW002
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPMW002
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8.
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COLDDIAG: A Cold Vacuum Chamber for Diagnostics
/ Casalbuoni, S (Karlsruhe, Inst. Technol.) ; Baumbach, T (Karlsruhe, Inst. Technol.) ; Gerstl, S (Karlsruhe, Inst. Technol.) ; Grau, A W (Karlsruhe, Inst. Technol.) ; Hagelstein, M (Karlsruhe, Inst. Technol.) ; Saez de Jauregui, D (Karlsruhe, Inst. Technol.) ; Boffo, C (Babcock Noell, Wuerzburg) ; Sikler, G (Babcock Noell, Wuerzburg) ; Baglin, V (CERN) ; Cox, M P (Diamond Light Source) et al.
One of the still open issues for the development of superconducting insertion devices is the understanding of the beam heat load. With the aim of measuring the beam heat load to a cold bore and the hope to gain a deeper understanding in the beam heat load mechanisms, a cold vacuum chamber for diagnostics is under construction. [...]
2011
- Published in : IEEE Trans. Appl. Supercond. 21 (2011) 2300-2303
IEEE Published version, local copy: PDF;
In : Applied Superconductivity Conference 2010, Washington, DC, USA, 1 - 6 Aug 2010, pp.2300-2303
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9.
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Status of COLDDIAG: A Cold Vacuum Chamber for Diagnostics
/ Gerstl, Stefan (KIT, Karlsruhe) ; Baumbach, Tilo (KIT, Karlsruhe) ; Casalbuoni, Sara (KIT, Karlsruhe) ; Grau, Andreas (KIT, Karlsruhe) ; Hagelstein, Michael (KIT, Karlsruhe) ; Saez de Jauregui, David (KIT, Karlsruhe) ; Baglin, Vincent (CERN) ; Boffo, Cristian (Babcock Noell, Wuerzburg) ; Sikler, Gunther (Babcock Noell, Wuerzburg) ; Bradshaw, Thomas (Rutherford) et al.
One of the still open issues for the development of superconducting insertion devices is the understanding of the beam heat load. With the aim of measuring the beam heat load to a cold bore and the hope to gain a deeper understanding in the beam heat load mechanisms, a cold vacuum chamber for diagnostics is under construction. [...]
arXiv:1006.0089; IPAC-2010-WEPD018.-
2010 - 3 p.
- Published in : (2010) , pp. WEPD018
Fulltext: wepd018 - PDF; arXiv:1006.0089 - PDF; External link: Full-text at JACoW Server
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.WEPD018
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10.
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Observation of Electron Clouds in the ANKA Undulator by Means of the Microwave Transmission Method
/ Sonnad, K G (Karlsruhe, Forschungszentrum) ; Birkel, I (Karlsruhe, Forschungszentrum) ; Casalbuoni, S (Karlsruhe, Forschungszentrum) ; Huttel, E (Karlsruhe, Forschungszentrum) ; Mashkina, E M (Karlsruhe, Forschungszentrum) ; Saez de Jauregui, D (Karlsruhe, Forschungszentrum) ; Smale, N J (Karlsruhe, Forschungszentrum) ; Caspers, Friedhelm (CERN) ; Muller, A S (Karlsruhe U.) ; Sonnad, K G (Karlsruhe U.) et al.
A superconducting undulator is installed in the ANKA electron storage ring. Electron clouds could potentially contribute to the heat load of this device. [...]
2010 - 1 p.
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH5RFP044
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