1.
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Field Quality Study of the LARP Nb$_3$Sn 3.7 m-Long Quadrupole Models of LQ series
/ Velev, G V (Fermilab) ; Ambrosio, G (Fermilab) ; Andreev, N (Fermilab) ; Anerella, M (Brookhaven Natl. Lab.) ; Bossert, R (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Chlachidze, G (Fermilab) ; DiMarco, J (Fermilab) ; Escallier, J (Brookhaven Natl. Lab.) ; Felice, H (LBNL, Berkeley) et al.
After the successful test of the first long Nb$_3$Sn quadrupole magnet (LQS01), the US LHC Accelerator Research Program (LARP) has assembled and tested a new 3.7 m-long Nb$_3$Sn quadrupole (LQS02). This magnet has four new coils made of the same conductor as LQS01 coils, and it is using the same support structure. [...]
2012 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 22 (2012) 9002804
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011, pp.9002804
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2.
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Fabrication and Test of a 3.7 m Long Support Structure for the LARP ${\hbox{Nb}}_{3}{\hbox{Sn}}$ Quadrupole Magnet LQS01
/ Ferracin, P (LBNL, Berkeley) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven Natl. Lab.) ; Bingham, B (LBNL, Berkeley) ; Bossert, R (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Cheng, D W (LBNL, Berkeley) ; Felice, H (LBNL, Berkeley) ; Hafalia, A R (LBNL, Berkeley) ; Hannaford, C R (LBNL, Berkeley) et al.
The 3.7 m long quadrupole magnet LQS01 represents a major step of the US LHC Accelerator Research Program (LARP) towards the development of long Nb$_3$Sn accelerator quadrupole magnets for a LHC Luminosity upgrade. The magnet support structure is a scale up of the 1 m long Technology Quadrupole TQS design with some modifications suggested by TQS model test results. [...]
2009 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 1106-1111
In : Applied Superconductivity Conference 2008, Chicago, IL, USA, 17 - 22 Aug 2008, pp.1106-1111
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3.
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Assembly and Loading of LQS01, a Shell-Based 3.7 m Long ${\rm Nb}_{3}{\rm Sn}$ Quadrupole Magnet for LARP
/ Ferracin, P (LBNL, Berkeley) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven Natl. Lab.) ; Bingham, B (LBNL, Berkeley) ; Bossert, R (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Cheng, D W (LBNL, Berkeley) ; Chlachidze, G (Fermilab) ; Felice, H (LBNL, Berkeley) ; Hafalia, A R (LBNL, Berkeley) et al.
The LHC Accelerator Research Program (LARP) has been engaged in the fabrication of the 3.7 m long quadrupole magnet LQS01 in order to demonstrate that Nb$_{3}$Sn magnets are a viable option for future LHC Luminosity upgrades. The LQS01 design, a scale-up of the 1 m long Technology Quadrupole TQS, includes four 3.4 m long cos(theta) coils contained in a support structure based on four 1 m long aluminum shells pre-tensioned with water-pressurized bladders (shell-type structure). [...]
2010 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 20 (2010) 279-282
In : 21st International Conference on Magnet Technology, Hefei, China, 18 - 23 Oct 2009, pp.279-282
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4.
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Test Results of the First 3.7 m long Nb$_3$Sn Quadrupole by LARP and Future Plans
/ LARP Collaboration
In December 2009 during its first cold test, LQS01, the first Long Nb$_3$Sn Quadrupole made by LARP (LHC Accelerator Research Program, a collaboration of BNL, FNAL, LBNL and SLAC), reached its target field gradient of 200 T/m. This target was set in 2005 by the US Department of Energy, CERN and LARP, as a significant milestone toward the development of Nb$_3$Sn quadrupoles for possible use in LHC luminosity upgrades. [...]
FERMILAB-PUB-10-312-TD.-
2010 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 21 (2010) 1858-1862
Fulltext: PDF; External link: FERMILABPUB
In : Applied Superconductivity Conference 2010, Washington, DC, USA, 1 - 6 Aug 2010, pp.1858-1862
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5.
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Progress in the long $Nb_3Sn$ quadrupole R&D by LARP
/ Ambrosio, G (Fermilab) ; Andreev, N (Fermilab) ; Anerella, M (Brookhaven) ; Barzi, E (Fermilab) ; Bocian, D (Fermilab) ; Bossert, r (Fermilab) ; Buehler, M (Fermilab) ; Caspi, S (LBL, Berkeley) ; Chlachidze, G (Fermilab) ; Dietderich, D (LBL, Berkeley) et al.
After the successful test of the first long quadrupole (LQS01) the US LHC Accelerator Research Program (LARP, a collaboration of BNL, FNAL, LBNL and SLAC) is assessing training memory, reproducibility, and other accelerator quality features of long quadrupole magnets. LQS01b (a reassembly of LQS01 with more uniform and higher pre-stress) was subjected to a full thermal cycle and reached the previous plateau of 222 T/m at 4.5 K in two quenches. [...]
FERMILAB-PUB-11-432-TD.-
2012 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 22 (2012) 4003804
Fulltext: PDF; External link: FERMILABPUB
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011, pp.4003804
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6.
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Test results of TQS03: A LARP shell-based Nb$_3$Sn quadrupole using 108/127 conductor
/ Felice, H (LBNL, Berkeley) ; Ambrosio, G (Fermilab) ; Bajko, M (CERN) ; Barzi, E (Fermilab) ; Bordini, B (CERN) ; Bossert, R (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Dietderich, D (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Feuvrier, J (CERN) et al.
Future insertion quadrupoles with large apertures and high gradients will be required for the Phase II luminosity upgrade (10$^{35}$ cm$^{−2}$s$^{−1}$) of the Large Hadron Collider (LHC). Although improved designs, based on NbTi, are being considered as an intermediate step for the Phase I upgrade, the Nb$_3$Sn conductor is presently the best option that meets the ultimate performance goals for both operating field and temperature margin. [...]
2010 - 14 p.
- Published in : J. Phys.: Conf. Ser. 234 (2010) 032010
Fulltext: PDF;
In : 9th European Conference on Applied Superconductivity, Dresden, Germany, 13 - 17 Sep 2009
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7.
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Field Quality of the First LARP Nb$_3$Sn 3.7m-Long Quadrupole Model of LQ Series
/ Velev, G V (Fermilab) ; Ambrosio, G (Fermilab) ; Andreev, N (Fermilab) ; Anerella, M (Brookhaven) ; Bossert, R (Fermilab) ; Caspi, S (LBL, Berkeley) ; Chlachidze, G (Fermilab) ; DiMarco, J (Fermilab) ; Escallier, J (Brookhaven) ; Felice, H (LBL, Berkeley) et al.
The US-LHC accelerator research program (LARP) built and tested the first 3.7-m long Nb$_3$Sn quadrupole model of LQ series with a 90 mm bore diameter and a target field gradient of 200 T/m. The LQ series, developed in collaboration among FNAL, LBNL and BNL, is a scale up of the previously tested 1-m long technology quadrupoles of TQ series based on similar coils and two different mechanical structures (shell-based TQS and collar-based TQC), with a primary goal of demonstrating the Nb$_3$Sn accelerator magnet technology for the luminosity upgrade of LHC interaction regions. [...]
FERMILAB-CONF-10-270-TD.-
2011 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 21 (2011) 1688-1691
Fulltext: PDF; External link: FERMILABCONF
In : Applied Superconductivity Conference 2010, Washington, DC, USA, 1 - 6 Aug 2010, pp.1688-1691
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8.
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Test and Analysis of Technology Quadrupole Shell (TQS) Magnet Models for LARP
/ Caspi, S (LBNL, Berkeley) ; Ambrosio, G (fermilab) ; Andreev, A N (Fermilab) ; Barzi, E (Fermilab) ; Bossert, R (Fermilab) ; Dietderich, D R (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Ghosh, A (Brookhaven Natl. Lab.) ; Hafalia, A R (LBNL, Berkeley) ; Kashikhin, V V (Fermilab) et al.
Test results are reported on four quadrupole magnet model tests (TQS01a, TQS01b, TQS01c, TQS02) in support of the development of a large-aperture Nb$_3$Sn superconducting quadrupole for the US LHC Accelerator Research Program (LARP). All four magnet assemblies used key and bladder technology to compress and support the coils within an iron yoke and an aluminum shell. [...]
2008 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 18 (2008) 179-183
In : 20th International Conference on Magnet Technology, Philadelphia, PA, USA, 27 - 31 Aug 2007, pp.179-183
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9.
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Construction and Test of 3.6 m Nb$_3$Sn Racetrack Coils for LARP
/ Wanderer, P (Brookhaven) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven Natl. Lab.) ; Barzi, E (Fermilab) ; Bossert, R (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Cheng, D W (LBNL, Berkeley) ; Cozzolino, J (Brookhaven Natl. Lab.) ; Dietderich, D R (LBNL, Berkeley) ; Escallier, J (Brookhaven Natl. Lab.) et al.
Development of high-performance Nb$_3$Sn quadrupoles is one of the major goals of the LHC Accelerator Research Program (LARP). As part of this program, long racetrack magnets were made in order to check the fabrication steps for long Nb$_3$Sn coils, that the changes in coil length that take place during reaction and cooldown are correctly accounted for in the quadrupole design, and the use of a long aluminum shell for the support structure. [...]
2008 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 18 (2008) 171-174
In : 20th International Conference on Magnet Technology, Philadelphia, PA, USA, 27 - 31 Aug 2007, pp.171-174
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10.
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Design of HQ—A High Field Large Bore Nb$_3$Sn Quadrupole Magnet for LARP
/ Felice, H (LBNL, Berkeley) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven Natl. Lab.) ; Bossert, R (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Cheng, D W (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Ghosh, A K (Brookhaven Natl. Lab.) ; Hafalia, R (LBNL, Berkeley) et al.
In support of the Large Hadron Collider luminosity upgrade, a large bore (120 mm) Nb$_3$Sn quadrupole with 15 T peak coil field is being developed within the framework of the US LHC Accelerator Research Program (LARP). The 2-layer design with a 15 mm wide cable is aimed at pre-stress control, alignment and field quality while exploring the magnet performance limits in terms of gradient, forces and stresses. [...]
2009 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 1235-1239
External link: Fulltext
In : Applied Superconductivity Conference 2008, Chicago, IL, USA, 17 - 22 Aug 2008, pp.1235-1239
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