1.
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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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2.
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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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3.
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Mechanical Performance of the LARP Nb$_3$Sn Quadrupole Magnet LQS01
/ Ferracin, P (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven) ; Bingham, B (LBL, Berkeley) ; Bossert, R (Fermilab) ; Caspi, S (LBL, Berkeley) ; Cheng, D W (LBL, Berkeley) ; Chlachidze, G (Fermilab) ; Felice, H (LBL, Berkeley) ; Hafalia, A R (LBL, Berkeley) et al.
As part of the effort towards the development of Nb$_3$Sn magnets for future LHC luminosity upgrades, the LHC Accelerator Research Program (LARP) has fabricated and tested the quadrupole magnet LQS01. The magnet implements 3.4 m long Nb$_3$Sn coils contained in a support structure characterized by an external aluminum shell segmented in four sections. [...]
2011 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 21 (2011) 1683-1687
In : Applied Superconductivity Conference 2010, Washington, DC, USA, 1 - 6 Aug 2010, pp.1683-1687
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4.
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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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5.
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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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6.
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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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7.
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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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8.
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Fabrication and test of LARP technological quadrupole models of TQC series
/ Bossert, Rodger C (Fermilab) ; Ambrosio, Giorgio (Fermilab) ; Andreev, Nikolai (Fermilab) ; Barzi, Emanuela (Fermilab) ; Chlachidze, Guram (Fermilab) ; Feher, Sandor (Fermilab) ; Kashikhin, Vladimir S (Fermilab) ; Kashikhin, Vadim V (Fermilab) ; Lamm, Michael (Fermilab) ; Nobrega, Alfred (Fermilab) et al.
In support of the development of a large-aperture Nb$_3$Sn superconducting quadrupole for the Large Hadron Collider (LHC) luminosity upgrade, several two-layer technological quadrupole models of TQC series with 90 mm aperture and collar-based mechanical structure have been developed at Fermilab in collaboration with LBNL. This paper summarizes the results of fabrication and test of TQC02a, the second TQC model based on RRP Nb3Sn strand, and TQC02b, built with both MJR and RRP strand. [...]
FERMILAB-PUB-08-309-TD.-
2009 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 1226-1230
Fulltext: PDF; External link: Fermilab Library Server (fulltext available)
In : Applied Superconductivity Conference 2008, Chicago, IL, USA, 17 - 22 Aug 2008, pp.1226-1230
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9.
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10.
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Impact of Coil Compaction on Nb$_3$Sn LARP HQ Magnet
/ Felice, H (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Anerella, M D (Brookhaven Natl. Lab.) ; Bocian, D (Fermilab) ; Bossert, R (Fermilab) ; Caspi, S (LBL, Berkeley) ; Collins, B (UC, Berkeley (main)) ; Cheng, D (LBL, Berkeley) ; Chlachidze, G (Fermilab) ; Dietderich, D R (LBL, Berkeley) et al.
In the past two years the US LARP program carried out five tests on a quadrupole magnet aimed at the high luminosity upgrade of Large Hadron Collider (HiLumi-LHC). The 1-meter long, 120 mm bore Nb$_3$Sn IR quadrupole magnet (HQ) with a short sample gradient of 219 T/m at 1.9 K and a conductor peak field of 15 T is part of the US LHC Accelerator Research Program (LARP). [...]
2012 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 22 (2012) 4001904
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011, pp.4001904
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