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1.
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Model-Based System Engineering Framework for Superconducting Accelerator Magnet Design
/ Maciejewski, Michał (ETH, Zurich (main)) ; Auchmann, Bernhard (CERN ; PSI, Villigen) ; Araujo, Douglas Martins (PSI, Villigen) ; Vallone, Giorgio (LBNL, Berkeley) ; Leuthold, Juerg (ETH, Zurich (main)) ; Smajic, Jasmin (ETH, Zurich (main))
The design specification of future high-field accelerator magnets require innovation in and integration of multiple disciplines. Numerical models underpin each step of the design. [...]
2023 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4003105
External link: accepted manuscript
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2.
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Novel Generalized Notch Filter for Harmonic Vibration Suppression in Magnetic Bearing Systems
/ Borque Gallego, Guzman (Swiss Ctr. Electronics Microtechnol., Neuchâtel) ; Rossini, Leopoldo (Swiss Ctr. Electronics Microtechnol., Neuchâtel) ; Achtnich, Timon (Celeroton AG, Volketswil) ; Araujo, Douglas Martins (CERN) ; Perriard, Yves (Swiss Federal Inst. Technol. Lausanne, Neuchâtel)
Magnetic bearings represent an important alternative
to conventional ball bearings for applications that require very
low noise and vibrations. The absence of contact and friction
between rotor and stator parts, combined with the use of active
vibration control techniques, result in rotating machinery that
can greatly outperform their passive counterparts. [...]
2021 - 11 p.
- Published in : IEEE Trans. Ind. Appl. 57 (2021) 6977-6987
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3.
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Magnetic and Mechanical Analysis of a Large Aperture 15 T Cable Test Facility Dipole Magnet
/ Vallone, Giorgio (LBL, Berkeley) ; Arbelaez, Diego (LBL, Berkeley) ; Araujo, Douglas Martins (CERN) ; Ballarino, Amalia (CERN) ; Ferracin, Paolo (LBL, Berkeley) ; Hafalia, Aurelio (LBL, Berkeley) ; Hopkins, Simon (CERN) ; Marinozzi, Vittorio (Fermilab) ; Pong, Ian (LBL, Berkeley) ; Prestemon, Soren (LBL, Berkeley) et al.
The US Department of Energy (DOE) Office of Science (SC), is funding a large bore “Cable Test Facility Magnet” for testing advanced cables and inserts in high transverse field. This is a joint effort between the Office of High Energy Physics (HEP) and the Office of Fusion Energy Sciences (FES). [...]
2021 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 9500406
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4.
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Progress on the Upgrade of EDIPO, a 15 T Large Aperture Dipole
/ Araujo, Douglas Martins (CERN) ; Ballarino, Amalia (CERN) ; Bordini, Bernardo (CERN) ; Bottura, Luca (CERN) ; Hopkins, Simon C (CERN) ; Perez, Juan C (CERN) ; Ravaioli, Emmanuele (CERN) ; de Rijk, Gijs (CERN) ; Bruzzone, Pierluigi (Ecole Polytechnique, Lausanne) ; Sarasola, Xabier (Ecole Polytechnique, Lausanne) et al.
The upgraded magnet assembly of the EDIPO test facility aims at generating 15 T at 4.2 K and 85% of short sample limit in a large rectangular aperture and over a uniform field length of 1000 mm. During 2020 the design studies have concentrated on two flared-end block-coil design options with four double-pancake coils, two per pole. [...]
2021 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 9500205
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5.
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6.
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Magnetic and Mechanical 3-D Modelling of a 15 T Large Aperture Dipole Magnet
/ Araujo, Douglas Martins (CERN) ; Bottura, Luca (CERN) ; Bruzzone, Pierluigi (Ecole Polytechnique, Lausanne) ; Cau, Francesca (Fusion for Energy, Barcelona) ; Ferracin, Paolo (CERN) ; Pong, Ian (LBNL, Berkeley) ; Portone, Alfredo (Fusion for Energy, Barcelona) ; Prestemon, Soren (LBNL, Berkeley) ; Ravaioli, Emmanuele (CERN) ; Reccia, Luigi (Fusion for Energy, Barcelona) et al.
In 2018, two structures have been proposed with the goal of replacing the magnet EDIPO that stopped operating in 2016. These two solutions were designed to generate a field of 15 T on an aperture of 100 × 150 mm$^{2}$ at 4.2 K by using Nb3Sn superconducting Rutherford cable. [...]
2020 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4000705
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7.
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Magnetic and mechanical design of a 15-T large aperture dipole magnet for cable testing
/ Sarasola, Xabier (Ecole Polytechnique, Lausanne) ; Bruzzone, Pierluigi (Ecole Polytechnique, Lausanne) ; Bottura, Luca (CERN) ; Ferracin, Paolo (CERN) ; Araujo, Douglas Martins (CERN) ; de Rijk, Gijs (CERN) ; Cau, Francesca (Fusion for Energy, Barcelona) ; Portone, Alfredo (Fusion for Energy, Barcelona) ; Testoni, Pietro (Fusion for Energy, Barcelona) ; Prestemon, Soren (LBNL, Berkeley) et al.
A large aperture Nb$_3$Sn dipole is proposed to replace the magnet assembly of EDIPO, which was irreversibly damaged in 2016. The goal is to generate a background field of 15 T at 4.2 K in a clear aperture of approximately 100×150 mm$^2$ and over a uniform length of 1000 mm in order to test superconducting cables for both fusion and high-energy physics applications. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4001405
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8.
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Tests of the FRESCA2 100 mm bore Nb$_3$Sn block-coil magnet to a record field of 14.6 T
/ Willering, Gerard (CERN) ; Arnestad, Havard (CERN) ; Bajko, Marta (CERN) ; Bajas, Hugo (CERN) ; Bortot, Lorenzo (CERN) ; Bottura, Luca (CERN) ; Bourcey, Nicolas (CERN) ; Duda, Michal (CERN ; Cracow, INP) ; Ferracin, Paolo (CERN) ; Feuvrier, Jerome (CERN) et al.
The Nb$_3$Sn block coil dipole magnet FRESCA2 was developed within the framework of a collaboration between CEA Saclay and CERN, in the continuity of the European project EuCARD and EuCARD2. With an aperture of 100 mm and a target bore field of 13 T at 10.6 kA, the magnet is required for a new FRESCA2 cable test facility at CERN. [...]
2019 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4004906
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9.
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