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1.
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Challenges and Lessons Learned From Fabrication, Testing, and Analysis of Eight MQXFA Low Beta Quadrupole Magnets for HL-LHC
/ Ambrosio, Giorgio (Fermilab) ; Amm, Kathleen (Brookhaven) ; Anerella, Michael (Brookhaven) ; Apollinari, Giorgio (Fermilab) ; Izquierdo, Gonzalo Arnau (CERN) ; Baldini, Maria (Fermilab) ; Ballarino, Amalia (CERN) ; Barth, Christian (CERN) ; Yahia, Anis Ben (Brookhaven) ; Blowers, James (Fermilab) et al.
By the end of October 2022, the US HL-LHC Accelerator Upgrade Project (AUP) had completed fabrication of ten MQXFA magnets and tested eight of them. The MQXFA magnets are the low beta quadrupole magnets to be used in the Q1 and Q3 Inner Triplet elements of the High Luminosity LHC. [...]
arXiv:2301.09523; FERMILAB-PUB-22-855-TD.-
2023-08 - 8 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4003508
Fulltext: 2301.09523 - PDF; 81b192c337ae5d5acaec37450e135529 - PDF; External link: Fermilab Library Server
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2.
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A Strategic Approach to Advance Magnet Technology for Next Generation Colliders
/ Ambrosio, G. (Fermilab) ; Amm, K. (Brookhaven Natl. Lab.) ; Anerella, M. (Brookhaven Natl. Lab.) ; Apollinari, G. (Fermilab) ; Arbelaez, D. (LBNL, Berkeley) ; Auchmann, B. (PSI, Villigen) ; Balachandran, S. (Natl. High Mag. Field Lab.) ; Baldini, M. (Fermilab) ; Ballarino, A. (CERN) ; Barua, S. (Natl. High Mag. Field Lab.) et al.
Colliders are built on a foundation of superconducting magnet technology that provides strong dipole magnets to maintain the beam orbit and strong focusing magnets to enable the extraordinary luminosity required to probe physics at the energy frontier. [...]
arXiv:2203.13985 ; FERMILAB-CONF-22-283-TD.
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Fermilab Library Server - eConf - Fulltext - Fulltext
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3.
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Challenges in the Support Structure Design and Assembly of HD3, a Nb$_3$Sn Block-Type Dipole Magnet
/ Felice, H (LBNL, Berkeley) ; Borgnolutti, F (LBNL, Berkeley) ; Caspi, S (LBNL, Berkeley) ; Cheng, D W (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Godeke, A (LBNL, Berkeley) ; Hafalia, A R (LBNL, Berkeley) ; Joseph, J M (LBNL, Berkeley) ; Lizarazo, J (LBNL, Berkeley) et al.
As part of the development of very high field dipole magnets for particle accelerators, the Superconducting Magnet Program at Lawrence Berkeley National Laboratory is developing block-type dipole magnets. One of the main challenges of this geometry is to provide support to the coil in the aperture while maintaining an adequate clear bore. [...]
2013 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 23 (2013) 4001705
In : Applied Superconductivity Conference 2012: The Next Century of Superconductivity, Portland, OR, USA, 7 - 12 Oct 2012, pp.4001705
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4.
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Design and Fabrication Experience With Nb$_3$Sn Block-Type Coils for High Field Accelerator Dipoles
/ Cheng, D W (LBNL, Berkeley) ; Caspi, S (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Felice, H (LBNL, Berkeley) ; Ferracin, P (CERN) ; Hafalia, A R (LBNL, Berkeley) ; Marchevsky, M (LBNL, Berkeley) ; Prestemon, S (LBNL, Berkeley) ; Sabbi, G (LBNL, Berkeley)
For the last several years, the Lawrence Berkeley National Laboratory has been engaged in the development of Nb$_3$Sn block-type accelerator quality dipoles with operational bore fields in the range of 13-15 T. The magnet design features two coil modules wound around a titanium-alloy pole with a clear aperture of 43 mm. [...]
2013 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 23 (2013) 4002504
In : Applied Superconductivity Conference 2012: The Next Century of Superconductivity, Portland, OR, USA, 7 - 12 Oct 2012, pp.4002504
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5.
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6.
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Mechanical Behavior of HQ01, a Nb$_3$Sn Accelerator-Quality Quadrupole Magnet for the LHC Luminosity Upgrade
/ Ferracin, P (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven Natl. Lab.) ; Bossert, R (Fermilab) ; Caspi, S (LBL, Berkeley) ; Chlachidze, G (Fermilab) ; Cheng, D W (LBL, Berkeley) ; Dietderich, D R (LBL, Berkeley) ; Felice, H (LBL, Berkeley) ; Ghosh, A (Brookhaven Natl. Lab.) et al.
HQ01 is a superconducting quadrupole magnet under development by the LHC Accelerator Research Program (LARP) as a part of an R&D; effort to demonstrate that Nb$_3$Sn magnet technology is a viable option for a future luminosity upgrade of the LHC. The design is characterized by a 120 mm bore, a maximum gradient of 219 T/m at 1.9 K, and a support structure based on an aluminum shell pre-tensioned by water-pressurized bladders. [...]
2012 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 22 (2012) 4901804
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011, pp.4901804
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7.
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Quench Performance of HQ01, a 120 mm Bore LARP Quadrupole for the LHC Upgrade
/ Marchevsky, M (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Bingham, B (LBL, Berkeley) ; Bossert, R (Fermilab) ; Caspi, S (LBL, Berkeley) ; Cheng, D W (LBL, Berkeley) ; Chlachidze, G (Fermilab) ; Dietderich, D (LBL, Berkeley) ; DiMarco, J (Fermilab) ; Felice, H (LBL, Berkeley) et al.
We report quench test results for the 1-meter long, 120 mm aperture Nb$_3$Sn quadrupole magnet, HQ01, designed, fabricated and tested for the LHC Accelerator Research Program (LARP). The magnet has a design gradient of 219 T/m at 1.9 K and peak field of ~15 T. [...]
2012 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 22 (2012) 4702005
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011, pp.4702005
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8.
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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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9.
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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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10.
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Lessons learned from the prototypes of the MQXFA Low Beta Quadrupoles for HL-LHC and status of production in the US
/ Ambrosio, Giorgio (Fermilab) ; Amm, Kathleen (BNL, NSLS) ; Anerella, Michael (BNL, NSLS) ; Apollinari, Giorgio (Fermilab) ; Baldini, Maria (Fermilab) ; Blowers, Jamie (Fermilab) ; Bossert, Rodger (Fermilab) ; Carcagno, Ruben (Fermilab) ; Cheng, Daniel W (BNL, NSLS) ; Chlachidze, Guram (Fermilab) et al.
With the successful test of the first two pre-series magnets the US HL-LHC Accelerator Upgrade Project has started production of the MQXFA magnets to be used in Q1/Q3 inner triplet elements of the HL-LHC. This good start comes after the test of two prototypes with limited performance, and it demonstrates the importance of learning from past issues. [...]
FERMILAB-PUB-20-618-TD.-
2021 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4001105
Fulltext: PDF;
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