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CERN Document Server 2,043 records found  1 - 10nextend  jump to record: Search took 0.44 seconds. 
1.
(100)
Experimental and numerical analysis of interfilament resistances in NbTi strands / Breschi, M (U. Bologna (main)) ; Massimini, M (U. Bologna (main)) ; Ribani, P L (U. Bologna (main)) ; Spina, T (CERN) ; Corato, V (U. Bologna (main))
Superconducting strands are composite wires made of fine superconducting filaments embedded in a metallic matrix. The transverse resistivity among superconducting filaments affects the coupling losses during electromagnetic transients and the electro-thermal behavior of the wire in case of a quench. [...]
2014 - Published in : Supercond. Sci. Technol. 27 (2014) 055021
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2.
(91)
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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Minimum Quench Energy and Early Quench Development in NbTi Superconducting Strands / Breschi, M (Department of Electrical Engineering of the University of Bologna, Italy) ; Trevisani, L (Department of Electrical Engineering of the University of Bologna, Italy) ; Boselli, M (Department of Electrical Engineering of the University of Bologna, Italy) ; Bottura, Luca (CERN) ; Devred, Arnaud (CEA/Saclay, DSM/DAPNIA/SACM, Gif-sur-Yvette, France ; CERN) ; Ribani, P L (Department of Electrical Engineering of the University of Bologna, Italy) ; Trillaud, F (Massachusetts Institute of Technology, Cambridge, USA)
The stability of superconducting wires is a crucial task in the design of safe and reliable superconducting magnets. These magnets are prone to premature quenches due to local releases of energy. [...]
CERN-AT-2007-008-MCS.- Geneva : CERN, 2007 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 17 (2007) 2702-2705 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : Applied Superconductivity Conference, Seattle, WA, USA, 27 Aug - 1 Sep 2006, pp.2702-2705
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4.
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Advances in low-loss Nb-Ti strand and cable / Wilson, Martin N (Brook House, Abingdon)
The new fast ramping accelerators will require NbTi conductors with lower ac losses than hitherto. Finer filaments will be needed, which will demand significant improvements in the double stack production process. [...]
CERN, 2009 Published version from CERN: PDF;
In : Workshop on Accelerator Magnet Superconductors, Design and Optimization, CERN, Geneva, Switzerland, 19 - 23 May 2008, pp.8-12 (CERN-2009-001)
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5.
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Comparing Thermal Stability of NbTi and Nb$_3$Sn Wires / Breschi, M (Bologna U.) ; Trevisani, L (Bologna U.) ; Bottura, L (CERN) ; Devred, A (Cadarache , ITER) ; Trillaud, F (LBNL)
The investigation of quenching in low temperature superconducting wires is of great relevance for a proper design of superconductive cables and magnets. This paper reports the experimental results of a vast measurement campaign of quench induced by laser pulses on NbTi and Nb$_{3}$Sn wires in pool boiling Helium I. [...]
CERN-AT-2008-028.- Geneva : CERN, 2009 - 24 p. - Published in : Supercond. Sci. Technol. 22 (2009) 025019 Fulltext: PDF;
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Quench Level of the HL-LHC $Nb_3Sn$ IR Quadrupoles / Breschi, Marco (Bologna U.) ; Felcini, Enrico (Bologna U.) ; Bottura, Luca (CERN)
The scope of the Large Hadron Collider Hi-Lumi Project at CERN includes the installation of several superconducting magnets wound with $Nb_3Sn$ Rutherford cables. The quench level of these magnets (i.e. [...]
2017 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4002105
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4002105
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7.
(43)
Low-current Resistance of Multifilamentary Superconducting Cu/NbTi Strands / Boutboul, T (CERN) ; Lezza, P (CERN) ; Wolf, R (CERN)
We report on low-current resistance data of NbTi superconducting strands measured at CERN, for several strand types and as a function of important parameters like temperature, applied magnetic field and current ramp rate. The observed dynamic resistance can be well understood by the transport current penetration into the strand during the measurement..
LHC-PROJECT-NOTE-312.- Geneva : CERN, 2003 - 11 p. Access to fulltext document: PDF;
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8.
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Technical specification of NbTi superconducting wires for the sextupolar correction models /
CERN-PS-PA-Spec-88-1; CERN-SPS-EMA-Spec-88-6.- Geneva : CERN, 1988 - 7 p. Fulltext: PDF;
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Advances in ITER-relevant Nb-Ti and Nb$_{3}$Sn strands and low-loss Nb-Ti strands in RF / Pantsyrny, V (Bochvar Inst. Inorganic Materials) ; Shikov, A (Bochvar Inst. Inorganic Materials) ; Vorobieva, A (Bochvar Inst. Inorganic Materials) ; Potanina, L (Bochvar Inst. Inorganic Materials) ; Drobyshev, V (Bochvar Inst. Inorganic Materials) ; Kozlenkova, N (Bochvar Inst. Inorganic Materials) ; Dergunova, E (Bochvar Inst. Inorganic Materials) ; Gubkin, I (Bochvar Inst. Inorganic Materials) ; Sudyev, S (Bochvar Inst. Inorganic Materials)
The review of the main results of R&D; directed on the enhancement of ITER relevant NbTi and Nb$_{3}$Sn strands performance recently carried out in Russia (the Bochvar Institute) are presented. For ITER PF type (NbTi) strands with Cu/non Cu ratio of 1.6 the attainment of ITER specified critical current density (Jc) ≥ 2900 A/mm2 (5 T, 4.2 K) has been shown. [...]
CERN, 2009 Published version from CERN: PDF;
In : Workshop on Accelerator Magnet Superconductors, Design and Optimization, CERN, Geneva, Switzerland, 19 - 23 May 2008, pp.19-23 (CERN-2009-001)
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Category Accelerators and storage rings - CERN-OBJ-AC-051.
Sample of superconducting wiring (Niobium Titanium)

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