1.
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The effects of disorder on the normal state and superconducting properties of Nb$_3$Sn
/ Mentink, M G T (CERN) ; Dhalle, M M J (Twente U., Enschede) ; Dietderich, D R (LBNL, Berkeley) ; Godeke, A (Natl. High Mag. Field Lab.) ; Hellman, F (UC, Berkeley (main)) ; ten Kate, H H J (CERN ; Twente U., Enschede)
The effect of disorder on the normal state resistivity and the superconducting properties of Nb${}_{3}$Sn is explored in a combination of ab initio calculations and microscopic theory. The crystal symmetry is calculated to be preferentially tetragonal at a normal state resistivity below 27.0 ± 1.4 $\mu {\rm{\Omega }}\mathrm{cm}$, and preferentially cubic above this value, which is shown to be consistent with the experimentally observed transition point. [...]
2016 - 13 p.
- Published in : Supercond. Sci. Technol. 30 (2016) 025006
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2.
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Quench Behavior of the HL-LHC Twin Aperture Orbit Correctors
/ Mentink, Matthias (CERN) ; van Nugteren, Jeroen (CERN) ; Mangiarotti, Franco (CERN) ; Duda, Michal (CERN ; Cracow, INP) ; Kirby, Glyn (CERN)
A study was performed to understand the quench behavior and ensure adequate quench protection of the canted cosine theta (CCT) twin aperture orbit corrector magnet, a superconducting magnet under development as part of the high-luminosity upgrade of the Large Hadron Collider (HL-LHC). The cosine theta geometry features canted superconducting coils, which together produce a magnetic dipole field. [...]
2018 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4004806
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4004806
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3.
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Development of a 10 T Nb$_{3}$Sn twin aperture model dipole magnet for the CERN LHC
/ ten Kate, H H J (Twente U., Enschede) ; den Ouden, A (Twente U., Enschede) ; Ter-Avest, D (Twente U., Enschede) ; Wessel, S (Twente U., Enschede) ; Dubbeldam, R L (HOLEC) ; Van Emden, W (NIKHEF, Amsterdam) ; Daum, C (NIKHEF, Amsterdam) ; Bóna, M (CERN) ; Leroy, D (CERN) ; Perin, R (CERN)
1990
External link: Published version from JACoW
In : 2nd European Particle Accelerator Conference, Nice, France, 12 - 16 Jun 1990, pp.1157-1159
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4.
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Direct Measurement of Inter-Filament Resistance in Superconducting Multifilamentary NbTi and Nb(3)Sn Strands
/ Zhou, C (Twente U., Enschede) ; Nijhuis, A (Twente U., Enschede) ; Veldhuis, D (Twente U., Enschede) ; van Lanen, E P A (Twente U., Enschede) ; ten Kate, H H J (CERN ; Twente U., Enschede) ; Dhalle, M (Twente U., Enschede)
A quantitative knowledge of inter-filament transverse resistance will allow us to describe current redistribution processes inside strands more accurately. This is particularly important for the analysis of the influence of strain and crack distribution patterns in Nb(3)Sn filaments on the shape of the voltage-current curves. [...]
2011
- Published in : IEEE Trans. Appl. Supercond. 21 (2011) 2501-2504
IEEE Published version, local copy: PDF;
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5.
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Heat transfer at dielectric - metallic interfaces in the ultra-low temperature range
/ Liberadzka, J (CERN ; Twente U., Enschede) ; Golm, J (CERN) ; Koettig, T (CERN) ; Bremer, J (CERN) ; ter Brake, H J M (Twente U., Enschede)
In the framework of the AEgIS project a series of steady state and dynamic
heat transfer measurements at ultra-low temperatures was conducted in the Central Cryogenic
Laboratory at CERN. Two sandwich setups, simulating the behaviour of ultra-cold AEgIS
electrodes, were investigated and compared, namely: a sapphire − indium − copper and a
sapphire − titanium − gold − indium − copper sandwich. [...]
2019 - 5 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012133
Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012133
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6.
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Modeling heat transfer from quench protection heaters to superconducting cables in Nb$_{3}$Sn magnets
/ Salmi, T. (LBNL, Berkeley) ; Arbelaez, D. (LBNL, Berkeley) ; Caspi, S. (LBNL, Berkeley) ; Felice, H. (LBNL, Berkeley) ; Prestemon, S. (LBNL, Berkeley) ; Chlachidze, G. (Fermilab) ; ten Kate, H. H. J. (Twente U., Enschede)
We use a recently developed quench protection heater modeling tool for an analysis of heater delays in superconducting high-field Nb$_{3}$Sn accelerator magnets. The results suggest that the calculated delays are consistent with experimental data, and show how the heater delay depends on the main heater design parameters..
arXiv:1401.3939; FERMILAB-CONF-13-594-TD.-
2013 - 8 p.
- Published in : 10.5170/CERN-2013-006.30
Fulltext: arXiv:1401.3939 - PDF; fermilab-conf-13-594-td - PDF; Published version from CERN: PDF; External link: Fermilab Library Server (fulltext available)
In : WAMSDO: Workshop on Accelerator Magnet Superconductors, Design and Optimization, pp.30-37
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7.
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Application of Nb$_3$Sn superconductors in high-field accelerator magnets
/ den Ouden, Andries (Twente U. Tech., Enschede) ; Wessel, Sander (Twente U. Tech., Enschede) ; Krooshoop, Erik (Twente U. Tech., Enschede) ; ten Kate, Herman (Twente U. Tech., Enschede)
Last year a record central field of 11 T at first excitation at 4.4 K has been achieved with the experimental LHC model dipole magnet MSUT by utilising a high J$_c$ powder-in-tube Nb$_3$Sn conductor. This is the first real breakthrough towards fields well above 10 T at 4 K. [...]
1997 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 7 (1997) 733-738
Fulltext: PDF; External link: server
In : Applied Superconductivity Conference : ASC '96, pt.1-3, Pittsburgh, PA, USA, 25 - 30 Aug 1996, pp.733-738
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8.
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Protecting a Full-Scale Nb$_3$Sn Magnet with CLIQ, the New Coupling-Loss-Induced Quench System
/ Ravaioli, E (CERN ; Twente U., Enschede) ; Bajas, H (CERN) ; Datskov, V I (CERN) ; Desbiolles, V (CERN) ; Feuvrier, J (CERN) ; Kirby, G (CERN) ; Maciejewski, M (CERN ; Lodz, Tech. U.) ; Sabbi, G (LBL, Berkeley) ; ten Kate, H H J (CERN ; Twente U., Enschede) ; Verweij, A P (CERN)
A new protection system for superconducting magnets called coupling-loss induced quench system (CLIQ) has been recently developed at CERN. Recent tests on Nb-Ti coils have shown that CLIQ is a valid, efficient, and promising method for the protection of high-magnetic-field superconducting magnets. [...]
2015 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 25 (2015) 4001305
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.4001305
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9.
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10.
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Very high upper critical fields and enhanced critical current densities in Nb$_3$Sn superconductors based on Nb–Ta–Zr alloys and internal oxidation
/ Buta, F (U. Geneva (main)) ; Bonura, M (U. Geneva (main)) ; Matera, D (U. Geneva (main)) ; Bovone, G (U. Geneva (main)) ; Ballarino, A (CERN) ; Hopkins, S C (CERN) ; Bordini, B (CERN) ; Chaud, X (Natl. High Mag. Field Lab.) ; Senatore, C (U. Geneva (main))
The inhibition of Nb$_3$Sn grain growth in the presence of ZrO$_2$ nanoparticles appears to be one of
the most promising method for pushing the critical current densities of Nb$_3$Sn superconducting
wires to levels that meet the requirements set for the Future Circular Collider. We have investigated
the effect of ZrO$_2$ nanoparticles formed by the internal oxidation of Zr on the superconducting
properties and microstructure of Nb3Sn formed from Nb-1 wt%Zr, Nb-7.5 wt%Ta,
Nb-7.5 wt%Ta-1 wt%Zr and Nb-7.5 wt%Ta-2 wt%Zr alloys. [...]
2021 - 14 p.
- Published in : J. Phys. Mater. 4 (2021) 025003
Fulltext: PDF;
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