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CERN Document Server 找到 13 笔记录  1 - 10下一个  跳到记录: 检索需时 0.64 秒. 
1.
Preliminary Integration for Testing HTS Feather-M2 in the FRESCA2 Dipole Magnet / Martins Araujo, Douglas (CERN) ; Kirby, Glyn (CERN) ; Van Nugteren, Jeroen (CERN) ; Murtomaki, Jaakko (CERN) ; Ferracin, Paolo (CERN) ; de Rijk, Gijs (CERN) ; Perez, Juan (CERN) ; Willering, Gerard (CERN) ; Canale, Matthieu (CERN)
In 2018, FRESCA2 magnet, developed within a collaboration between CEA and CERN to provide a background field for tests of cables and small coils, reached a field of 14.6 T. This represents a new record field for dipole magnets with a clear aperture. [...]
2020 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4003605
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2.
How to Computationally Determine the Maximum Stable Operation Current of an HTS Magnet / Ruuskanen, Janne (Tampere U. of Tech.) ; Stenvall, Antti (Tampere U. of Tech.) ; Lahtinen, Valtteri (Tampere U. of Tech.) ; van Nugteren, Jeroen (CERN) ; Kirby, Glyn (CERN) ; Murtomäki, Jaakko (Tampere U. of Tech.)
The short-sample critical current is only an indicative property for the maximum current a magnet can be continuously operated with. This was especially visible in the experiments of one of the world's first Roebel-cable-based high temperature superconductors dipole magnet prototype built and tested at CERN in 2017 where the thermal runaway developed very slowly in many cases. [...]
2019 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4701204
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3.
3-D Mechanical Modeling of 20 T HTS Clover Leaf End Coils—Good Practices and Lessons Learned / Murtomäki, Jaakko Samuel (CERN ; Tampere U. of Tech.) ; van Nugteren, Jeroen (CERN) ; Stenvall, Antti (Tampere U. of Tech.) ; Kirby, Glyn (CERN) ; Rossi, Lucio (CERN)
Very high electromagnetic forces are generated in the superconducting coils of high field accelerator magnets. The cables, which are used to wind the coils, can withstand limited pressure levels and strains generated during the powering without degradation. [...]
2019 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4004608
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4.
10 kA Joints for HTS Roebel Cables / Murtomaki, Jaakko Samuel (CERN) ; Kirby, Glyn (CERN) ; van Nugteren, Jeroen (CERN) ; Contat, Pierre-Antoine (CERN) ; Sacristan-de-Frutos, Oscar (CERN) ; Fleiter, Jerome (CERN) ; Pincot, Francois-Olivier (CERN) ; de Rijk, Gijs (CERN) ; Rossi, Lucio (CERN) ; Ruuskanen, Janne (Tampere U. of Tech.) et al.
Future high temperature superconductor (HTS) high field magnets using multitape HTS cables need 10-kA low-resistance connections. The connections are needed between the poles of the magnets and at the terminals in a wide-operating temperature range, from 1.9-85 K. [...]
2018 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4801406
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4801406
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5.
Idealized Coil Cross-Sections with Minimized Conductor Area for High Field Dipoles / van Nugteren, Jeroen (CERN) ; Wolf, Felix (CERN) ; Murtomäki, Jaakko Samuel (CERN) ; Kirby, Glyn (CERN) ; de Rijk, Gijs (CERN) ; Ten Kate, Herman (CERN) ; Rossi, Lucio (CERN)
In the design of superconducting accelerator magnets, the shape of the coil cross-section is mainly driven by the minimization of the conductor volume, constrained by requirements on the central magnetic field and its homogeneity. Such optimizations commonly assume either a Block or Cosine Theta coil type, which is then filled with (pre-determined) rectangular or key-stoned Rutherford cables. [...]
2018 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2018) 4901505
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4901505
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6.
Investigation of REBCO Roebel Cable Irreversible Critical Current Degradation Under Transverse Pressure / Murtomaki, Jaakko Samuel (CERN) ; Kouhia, Reijo (Tampere U. of Tech.) ; Stenvall, Antti (Tampere U. of Tech.) ; Bottura, Luca (CERN) ; Kirby, Glyn (CERN) ; van Nugteren, Jeroen (CERN) ; de Rijk, Gijs (CERN) ; Rossi, Lucio (CERN)
The Roebel cable utilized in High Field accelerator magnets is subject to high transversal electromagnetic forces. The conductor response to exerted pressure depends from the geometry and materials of the cable. [...]
2018 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4802506
In : 13th European Conference on Applied Superconductivity, ICCG, Geneva, Switzerland, 17 - 21 Sep 2017, pp.4802506
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7.
ICED—Inductively Coupled Energy Dissipater for Future High-Field Accelerator Magnets / Murtomäki, Jaakko Samuel (CERN) ; van Nugteren, Jeroen (CERN) ; Kirby, Glyn (CERN) ; de Rijk, Gijs (CERN) ; Rossi, Lucio (CERN) ; Stenvall, Antti (Tampere U. of Tech.)
Future high-field accelerator magnets, like the ones foreseen in the design study of the FCC project and for the EuCARD2 “Future Magnets” program, operate with magnetic fields in the range of 16-20 T. For such magnets the energy density is higher than in the accelerator magnets at present in operation, posing a challenge for the quench protection. [...]
2018 - 15 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4009015
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8.
A fast quench protection system for high-temperature superconducting magnets / van Nugteren, Jeroen (CERN) ; Murtomäki, Jaakko Samuel (CERN) ; Ruuskanen, Janne (Tampere U. of Tech.) ; Kirby, Glyn (CERN) ; Hagen, Per (CERN) ; de Rijk, Gijs (CERN) ; Ten Kate, Herman (CERN) ; Bottura, Luca (CERN) ; Rossi, Lucio (CERN)
For reaching very high magnetic fields in fully superconducting magnets, beyond 16 T for particle accelerators dipoles and beyond 23 T for solenoids, the use of High-Temperature Superconductors (HTS) is unavoidable. Due to the high Minimum Quench Energy in HTS these coils are much more difficult to protect against quenches using conventional methods such as quench heaters or Coupling Loss Induced Quench (CLIQ). [...]
2018 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2018) 4700108
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4700108
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9.
Towards REBCO 20T+ dipoles for accelerators / van Nugteren, Jeroen (CERN) ; Kirby, Glyn (CERN) ; Murtomäki, Jaakko (CERN) ; DeRijk, Gijs (CERN) ; Rossi, Lucio (CERN) ; Stenvall, Antti (Tampere U. of Tech.)
ReBCO high temperature superconducting (HTS) coated conductor tapes are a promising candidate for pushing the magnetic fields in accelerator magnets well beyond 20 T. They are capable of very high current densities in intense applied magnetic field, have a very high thermal stability, can withstand high transverse pressures and allow operation in 20–30 K helium gas flow, potentially reducing operating cost significantly. [...]
2018 - 9 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4008509
In : 13th European Conference on Applied Superconductivity, ICCG, Geneva, Switzerland, 17 - 21 Sep 2017, pp.4008509
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10.
Hi-Lumi LHC Twin Aperture Orbit Correctors 0.5-m Model Magnet Development and Cold Test / Kirby, Glyn A (CERN) ; Gentini, Luca (CERN) ; Mazet, Jacky (CERN) ; Mentink, Matthias (CERN) ; Mangiarotti, Franco (CERN) ; Van Nugteren, Jeroen (CERN) ; Murtomaki, Jaakko Samuel (CERN) ; Hagen, Per (CERN) ; Pincot, Francois Olivier (CERN) ; Bourcey, Nicolas (CERN) et al.
The large hadron collider (LHC) upgrade, called high-luminosity LHC is planned for the next decade. A wide range of magnets and new technologies are currently under development. [...]
2018 - Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4002205
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CERN Document Server : 找到 13 笔记录   1 - 10下一个  跳到记录:
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