1.
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Dimensional Changes of Nb$_{3}$Sn Rutherford Cables During Heat Treatment
/ Rochepault, E (CERN) ; Ferracin, P (CERN) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven) ; Ballarino, A (CERN) ; Bonasia, A (CERN) ; Bordini, B (CERN) ; Cheng, D (LBL, Berkeley) ; Dietderich, D R (LBL, Berkeley) ; Felice, H (LBL, Berkeley) et al.
In high field magnet applications, Nb$_{3}$Sn coils undergo a heat treatment step after winding. During this stage, coils radially expand and longitudinally contract due to the Nb$_{3}$Sn phase change. [...]
FERMILAB-PUB-16-055-TD.-
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4802605
Fulltext: PDF;
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4802605
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2.
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Second Generation Coil Design of the Nb$_{3}$Sn low-beta Quadrupole for the High Luminosity LHC
/ Izquierdo Bermudez, S (CERN) ; Ambrosio, G (Fermilab) ; Ballarino, A (CERN) ; Cavanna, E ; Bossert, R (Fermilab) ; Cheng, D (LBL) ; Dietderich, D (LBL) ; Ferracin, P (CERN) ; Ghosh, A (BNL) ; Hagen,P (CERN) et al.
/LARP
As part of the Large Hadron Collider Luminosity upgrade (HiLumi-LHC) program, the US LARP collaboration and CERN are working together to design and build a 150 mm aperture Nb$_{3}$Sn quadrupole for the LHC interaction regions. A first series of 1.5 m long coils were fabricated and assembled in a first short model. [...]
FERMILAB-PUB-16-057-TD.-
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4001105
Fulltext: PDF;
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4001105
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3.
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Fabrication and Analysis of 150 mm Aperture Nb$_{3}$Sn LARP MQXF Coils
/ Holik, E F (Fermilab) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven) ; Bossert, R (Fermilab) ; Cavanna, E (Brookhaven) ; Cheng, D (LBL, Berkeley) ; Dietderich, D R (LBL, Berkeley) ; Ferracin, P (CERN) ; Ghosh, A K (Brookhaven) ; Izquierdo Bermudez, S (CERN) et al.
/LARP
The US LHC Accelerator Research Program (LARP) and CERN are combining efforts for the HiLumi-LHC upgrade to design and fabricate 150 mm aperture, interaction region quadrupoles with a nominal gradient of 130 T/m using Nb$_{3}$Sn. To successfully produce the necessary long MQXF triplets, the HiLumi-LHC collaboration is systematically reducing risk and design modification by heavily relying upon the experience gained from the successful 120 mm aperture LARP HQ program. [...]
FERMILAB-PUB-15-358-TD.-
2016 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4000907
Fulltext: PDF;
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4000907
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4.
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Development of MQXF: The Nb$_{3}$Sn Low-$\beta$ Quadrupole for the HiLumi LHC
/ Ferracin, P (CERN) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven) ; Ballarino, A (CERN) ; Bajas, H (CERN) ; Bajko, M (CERN) ; Bordini, B (CERN) ; Bossert, R (Fermilab) ; Cheng, D W (LBL, Berkeley) ; Dietderich, D R (LBL, Berkeley) et al.
The High Luminosity (HiLumi) Large Hadron Collider (LHC) project has, as the main objective, to increase the LHC peak luminosity by a factor five and the integrated luminosity by a factor ten. This goal will be achieved mainly with a new interaction region layout, which will allow a stronger focusing of the colliding beams. [...]
FERMILAB-PUB-16-048-TD.-
2016 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4000207
Fulltext: PDF;
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4000207
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5.
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6.
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Geometrical Behavior of Nb$_{3}$Sn Rutherford Cables During Heat Treatment
/ Durante, Maria (Saclay) ; Garcia Fajardo, Laura (CERN) ; Ferracin, Paolo (CERN) ; Manil, Pierre (Saclay) ; Perez, Juan Carlos (CERN) ; Rifflet, Jean-Michel (Saclay) ; Rondeaux, Francoise (Saclay)
In Nb$_{3}$Sn accelerator magnets, non-superconducting precursor cables are wound into their final coil shape and then heat treated at a high temperature to form the A15 superconducting phase. The growth of cable strands during reaction and the differential thermal dilatation in the coil components lead to both stress in the cable and geometrical deformations of the winding, with possible consequences on magnet performances [...]
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4802705
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4802705
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7.
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Performance Characteristics of Nb$_3$Sn Block-Coil Dipoles for a 100 TeV Hadron Collider
/ Sabbi, GianLuca (LBL, Berkeley) ; Bottura, Luca (CERN) ; Cheng, D W (LBL, Berkeley) ; Dietderich, Daniel R (LBL, Berkeley) ; Ferracin, Paolo (CERN) ; Godeke, Arno (LBL, Berkeley) ; Gourlay, StephenA (LBL, Berkeley) ; Marchevsky, Maxim (LBL, Berkeley) ; Todesco, Ezio (CERN) ; Wang, Xiaorong (LBL, Berkeley)
Recent studies highlight a renewed interest in a 100-TeV hadron collider as the next HEP discovery machine. The arc dipoles are the major technology challenge and cost driver for this application. [...]
2015 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 25 (2015) 4001407
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.4001407
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8.
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Length Changes of Unconfined Nb$_3$Sn Rutherford Cables During Reaction Heat Treatment
/ Michels, Matthias (CERN) ; Lackner, Friedrich (CERN) ; Scheuerlein, Christian (CERN) ; Carlon Zurita, Alejandro (CERN) ; Ferradas Troitino, Salvador (CERN) ; Bourcey, Nicolas (CERN) ; Savary, Frederic (CERN) ; Tommasini, Davide (CERN)
In order to predict volume changes of Nb3Sn coils during reaction heat treatment (RHT), coefficients of thermal expansion (CTE) of the involved materials need to be known. While the CTEs of bulk materials are widely available, there is a lack of knowledge about the dimensional changes of the Nb3Sn Rutherford cables. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 6000605
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.6000605
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9.
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Quench Propagation in Nb$_3$Sn Rutherford Cables for the Hi-Lumi Quadrupole Magnets
/ Fleiter, J (CERN) ; Bordini, B (CERN) ; Ballarino, A (CERN) ; Oberli, L (CERN) ; Izquierdo, S (CERN) ; Bottura, L (CERN)
The quadrupole magnets for the LHC High Luminosity (Hi-Lumi) upgrade will be based on Nb_3Sn Rutherford cables that operate at 1.9 K and experience magnetic fields larger than 12 T. Because of the large stored energy, one of the major issues in the design of these magnets is their protection. [...]
CERN-ACC-2015-0161.-
2015 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 25 (2015) 4802504
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.4802504
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10.
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Analysis and Modeling of Damage in RRP Nb$_{3}$Sn Wires During Cabling
/ Rochepault, E (LBNL, Berkeley ; CERN) ; Arbelaez, D (LBNL, Berkeley) ; Pong, I (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley)
High-critical current density (J_c) Nb_3Sn wires such as restacked-rod process wires are used in Rutherford cables for high-field superconducting magnets. However, during cabling, the wires experience strong plastic strains, which break some superconducting sub-elements and can degrade the electromagnetic performances. [...]
2015 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 25 (2015) 8800905
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.8800905
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