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Characterization of low temperature high voltage axial insulator breaks for the ITER cryogenic supply line
/ Fernandez Pison, P (CERN ; Carlos III U., Madrid) ; Sgobba, S (CERN) ; Santillana, I Aviles (CERN ; Carlos III U., Madrid) ; Langeslag, S A E (CERN) ; Su, M (Euratom, St. Paul Lez Durance) ; Piccin, R (Euratom, St. Paul Lez Durance) ; Journeaux, J Y (Euratom, St. Paul Lez Durance) ; Laurenti, A (Euratom, St. Paul Lez Durance) ; Pan, W (Hefei, Inst. Plasma Phys.)
Cable-in-conduit conductors of the ITER magnet system are directly cooled by supercritical helium. Insulation breaks are required in the liquid helium feed pipes to isolate the high voltage system of the magnet windings from the electrically grounded helium coolant supply line. [...]
2017 - 8 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 279 (2017) 012007
Fulltext: PDF; External link: Fulltext
In : 2017 Cryogenic Engineering Conference and International Cryogenic Materials Conference, Madison, WI, USA, 9 - 13 Jul 2017, pp.012007
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2.
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Advanced ultrasonic examination of heavy–gauge high strength studs for the ITER toroidal field gravity supports
/ Santillana, I Aviles (CERN) ; Izquierdo, G Arnau (CERN) ; Bonnin, S (Neuchatel U.) ; Celuch, M (CERN) ; Castro, E Rodriguez (CERN ; Carlos III U., Madrid) ; Sgobba, S (CERN) ; Beemsterboer, C (Euratom, St. Paul Lez Durance) ; Liao, M (Euratom, St. Paul Lez Durance) ; Schild, T (Euratom, St. Paul Lez Durance) ; Han, S (Euratom, St. Paul Lez Durance) et al.
The ITER Tokamak will include the largest superconducting magnet system ever built, with 50 GJ of stored energy. A series of structural elements guarantee its integrity under extreme load and temperature conditions. [...]
2023 - 4 p.
- Published in : Fusion Eng. Des. 194 (2023) 113900
Fulltext: PDF;
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3.
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Examination of ITER Central Solenoid prototype joints
/ Aviles Santillana, I (CERN) ; Sgobba, S (CERN) ; Castillo Rivero, S (CERN) ; Fernandez Pison, P (CERN) ; Libeyre, P (BIAM, St Paul lez Durance) ; Everitt, D (Oak Ridge, U.S. ITER) ; Martovetsky, N (Oak Ridge, U.S. ITER)
The ITER Magnet System will be the largest and most challenging integrated superconducting magnet systemever built. For the Central Solenoid (CS), cable–in–conduit - conductors (CICCs) of nearly one kilometre lengthare produced, but still, it will be necessary to connect several lengths together to wind the gigantic 110 tonnescoils. [...]
2019 - 5 p.
- Published in : Fusion Eng. Des. 146 (2019) 157-161
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4.
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Electrical insulation testing for ITER fusion tokamak
/ Gaxiola, E (Euratom, St. Paul Lez Durance) ; Evans, D (Euratom, St. Paul Lez Durance) ; Laquiere, J (Euratom, St. Paul Lez Durance) ; Laurenti, A (Euratom, St. Paul Lez Durance) ; Libeyre, P (Euratom, St. Paul Lez Durance) ; Lyraud, C (Euratom, St. Paul Lez Durance) ; Piccin, R (Euratom, St. Paul Lez Durance) ; Rinaudo, G (Euratom, St. Paul Lez Durance) ; Simon, F (Euratom, St. Paul Lez Durance) ; Vollmann, T (Euratom, St. Paul Lez Durance) et al.
The uniqueness of the ITER fusion project drives purpose and scope here to fulfil (functional) Procurement Arrangement (PA) requirements for the Central Solenoid (CS) and Correction Coil (CC) magnets' electrical insulation [1-3]; as used and undertaken for covering high voltage testing operations of the magnet coil winding pack (WP) vacuum pressure insulation (VPI) beam qualification, followed in 2016 by start of magnets series production in the USA and China [1, 2]. Useful to be considered common state-of-the-art electrical power components testing practices [3, 4] are presented here as performed to verify that the integrity and insulation of the various components are within acceptable limits during different phases of the fabrication and to certify acceptance on delivery of the complete coils. [...]
2017 - 4 p.
- Published in : 10.1109/EIC.2017.8004670
In : 35th IEEE Electrical Insulation Conference, Baltimore, MD, USA, 11 - 14 Jun 2017, pp.408-411
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5.
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Failure analysis of a heavy gauge fastener of the ITER toroidal field gravity support system
/ Sgobba, Stefano (CERN) ; Santillana, Ignacio Aviles (CERN) ; Buchanan, Katie Elizabeth (CERN) ; Celuch, Michal Dalemir (CERN) ; Crouvizier, Mickaël (CERN) ; Fontenla, Ana Teresa Perez (CERN) ; Castro, Enrique Rodriguez (CERN ; Carlos III U., Madrid) ; Beemsterboer, Cornelis (Euratom, St. Paul Lez Durance) ; Liao, Min (Euratom, St. Paul Lez Durance) ; Schild, Thierry (Euratom, St. Paul Lez Durance) et al.
The Gravity Supports (GS) of the ITER Toroidal Field (TF) coils are positioned at the bottom of the machine and
are situated under the 18 toroidal field coils. Each support includes 26 high strength bolts with M60 and M85
gauge. [...]
2023 - 5 p.
- Published in : Fusion Eng. Des. 186 (2023) 113353
Fulltext: PDF;
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6.
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Manufacture of the ITER Central Solenoid Components
/ Libeyre, Paul (Euratom, St. Paul Lez Durance) ; Cormany, Carl (Euratom, St. Paul Lez Durance) ; Dolgetta, Nello (Euratom, St. Paul Lez Durance) ; Gaxiola, Enrique (Euratom, St. Paul Lez Durance) ; Jong, Cornelis (Euratom, St. Paul Lez Durance) ; Lyraud, Charles (Euratom, St. Paul Lez Durance) ; Mitchell, Neil (Euratom, St. Paul Lez Durance) ; Journeaux, Jean-Yves (Euratom, St. Paul Lez Durance) ; Pearce, Robert (Euratom, St. Paul Lez Durance) ; Evans, David (Euratom, St. Paul Lez Durance) et al.
The ITER central solenoid (CS) components are currently being manufactured. This Nb$_{3}$Sn superconducting magnet will provide the magnetic flux swing required to induce up to 15 MA as plasma current. [...]
2018
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4200805
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4200805
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7.
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Assessment of Residual Stresses in ITER CS Helium Inlet Welds Fatigue Tested at Cryogenic Temperature
/ Sgobba, S (CERN) ; Aviles Santillana, I (CERN) ; Langeslag, S (CERN) ; Fernandez Pison, P (CERN ; Carlos III U., Madrid) ; Castillo Rivero, S (CERN ; Seville U.) ; Libeyre, P (Euratom, St. Paul Lez Durance) ; Jong, C (Euratom, St. Paul Lez Durance) ; Everitt, D (Oak Ridge, U.S. ITER) ; Freudenberg, K (Oak Ridge, U.S. ITER)
The ITER Central Solenoid (CS) consists of six independent wound modules. The
cooling of the cable-in-conduit conductor is assured by a forced flow of supercritical He at 4.5 K
supplied by He inlets located at the innermost radius of the coil. [...]
2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012095
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012095
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8.
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Qualification of the Manufacturing Procedures of the ITER Correction Coils
/ Libeyre, P (Euratom, St. Paul Lez Durance) ; Cormany, C (Euratom, St. Paul Lez Durance) ; Dolgetta, N (Euratom, St. Paul Lez Durance) ; Gaxiola, E (Euratom, St. Paul Lez Durance) ; Ilyin, Y (Euratom, St. Paul Lez Durance) ; Mitchell, N (Euratom, St. Paul Lez Durance) ; Simon, F (Euratom, St. Paul Lez Durance) ; Evans, D (Euratom, St. Paul Lez Durance) ; Sgobba, S (CERN) ; Langeslag, S A E (CERN) et al.
The system of correction coils (CC) is a component of the ITER magnet system, required to correct toroidal asymmetries and reduce error magnetic fields detrimental for physical processes in the plasma. It includes 18 coils, inserted in between toroidal field coils and poloidal field coils and split into 3 sets of 6 coils each: bottom correction coils (BCC), side correction coils (SCC), and top correction coils (TCC). [...]
2017 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4201405
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9.
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The ITER In-Vessel Coils – design finalization and challenges
/ Vostner, Alexander (Euratom, St. Paul Lez Durance) ; Bontemps, Vincent (Euratom, St. Paul Lez Durance) ; Encheva, Anna (Euratom, St. Paul Lez Durance) ; Jin, Huan (Hefei, Inst. Plasma Phys.) ; Laquiere, Julien (Euratom, St. Paul Lez Durance) ; Macioce, Davide (Euratom, St. Paul Lez Durance) ; Mariani, Nicola (Euratom, St. Paul Lez Durance) ; Mcintosh, Simon (Euratom, St. Paul Lez Durance) ; Peng, Xuebing (Euratom, St. Paul Lez Durance) ; Singh, Shuvay (CERN) et al.
ITER In-Vessel Coils (IVCs), resistive magnets to be installed in close proximity to ITER plasma to compensate fast perturbations of the plasma itself, have undergone a comprehensive revision of their requirements and operational loads, leading to design modifications and R&D; activities. An update of the plasma operating scenarios has been done and the maximum currents during transient plasma events have been assessed considering actual operating currents and the surrounding vacuum vessel support structure leading to more representative load cases. [...]
2019 - 6 p.
- Published in : Fusion Eng. Des. 146 (2019) 1490-1495
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10.
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Application of High Voltage Insulation on the Magnet Feeder Superconducting Joints During ITER Machine Assembly
/ Clayton, Nicholas (Euratom, St. Paul Lez Durance) ; Marushin, Egor (Euratom, St. Paul Lez Durance) ; Pasdeloup, Florian (Euratom, St. Paul Lez Durance ; CERN) ; Kim, Hyungjun (Euratom, St. Paul Lez Durance) ; Gung, Chen-yu (Euratom, St. Paul Lez Durance)
The ITER Magnet Feeders are composed of three main sections which are connected together on the ITER site. During this process, the superconducting busbars which carry the electrical current to the ITER magnets are connected together via superconducting joints. [...]
2024 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4204304
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