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1.
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Assessment of Training Performance, Degradation and Robustness of Paraffin-Wax Impregnated Nb3Sn Demonstrator Under High Magnetic Field
/ Araujo, D M (PSI, Villigen) ; Auchmann, B (PSI, Villigen ; CERN) ; Brem, A (PSI, Villigen) ; Daly, M (PSI, Villigen) ; Hug, C (PSI, Villigen) ; Michlmayr, T (PSI, Villigen) ; Amm, K (Brookhaven Natl. Lab.) ; Anerella, M (Brookhaven Natl. Lab.) ; Yahia, A Ben (Brookhaven Natl. Lab.) ; Cozzolino, J (Brookhaven Natl. Lab.) et al.
In the context of high-energy physics, the use of Nb3Sn superconducting magnets as a cost-effective and reliable technology depends on improvements in the following areas: long development and manufacturing cycles, conductor degradation after thermal cycling, long training, as well as a demonstration in accelerator magnets with a beam aperture of the full potential of modern Nb3Sn conductors. In short, performance, robustness, and cost are the three issues to be addressed. [...]
2024 - 8 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 7000208
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2.
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Status and challenges of the interaction region magnets for HL-LHC
/ Todesco, E (CERN) ; Izquierdo Bermudez, S (CERN) ; Foussat, A (CERN) ; Gautheron, E (CERN) ; Kirby, G (CERN) ; Felice, H (CERN) ; Perez, J C (CERN) ; Fleiter, J (CERN) ; Barth, C (CERN) ; Milanese, A (CERN) et al.
About one hundred magnets of six different types shall be installed in the High Luminosity LHC (HL-LHC) in the years 2026-2028 at CERN. The magnets design, construction and test are based on CERN collaborations with institutes and industrial partners in USA, Spain, Italy, Japan and China. [...]
FERMILAB-PUB-22-861-TD.-
2023 - 8 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4001608
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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3.
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MQXFA Final Design Report
/ Ambrosio, Giorgio
The MQXFA Quadrupole magnets will be installed in High Luminosity LHC to form the Q1 and Q3 inner triplet optical elements in front of the interaction points 1 (ATLAS) and 5 (CMS) [...]
arXiv:2203.06723 ; FERMILAB-TM-2773-TD ; US-HiLumi-doc-948
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120.
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4.
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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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5.
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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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6.
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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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7.
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The High Luminosity LHC interaction region magnets towards series production
/ Todesco, E (CERN) ; Bajas, H (CERN) ; Bajko, M (CERN) ; Ballarino, A (CERN) ; Bermudez, S Izquierdo (CERN) ; Bordini, B (CERN) ; Bottura, L (CERN) ; De Rijk, G (CERN) ; Devred, A (CERN) ; Duarte Ramos, D (CERN) et al.
The High Luminosity Large Hadron Collider (HL-LHC) is the new flagship project of CERN. First endorsed in 2013 and approved in 2016, HL-LHC is an upgrade of the accelerator aiming to increase by a factor of ten the statistics of the LHC collisions at the horizon of 2035–2040. [...]
FERMILAB-PUB-21-134-TD.-
2021 - 38 p.
- Published in : Supercond. Sci. Technol. 34 (2021) 053001
Fulltext: PDF;
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8.
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Magnetic Field Measurements of First Pre-series Full-Length 4.2 m Quadrupole MQXFA03 Using PCB Rotating Coils for the Hi-Lumi LHC Project
/ Song, Honghai (Stony Brook U.) ; Ambrosio, Giorgio (Fermilab) ; Amm, Kathleen (Brookhaven) ; Anerella, Michael (Brookhaven) ; Apollinari, Giorgio (Fermilab) ; Cheng, Daniel (LBNL) ; Chlachidze, Guram (Fermilab) ; DiMarco, Joseph (Fermilab) ; Feher, Sandor (Fermilab) ; Ferracin, Paolo (LBNL) et al.
The U.S. Hi-Lumi LHC Accelerator Upgrade Project (AUP) and CERN have joined efforts to develop high field quad-rupoles for the Hi-Lumi LHC upgrade. [...]
FERMILAB-PUB-21-038-TD.-
2021 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4000207
Fulltext: PDF; External link: Fermilab Accepted Manuscript
In : Applied Superconductivity Conference, Online, 24 Oct - 7 Nov 2020, pp.4000207
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9.
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Test Results of the First Two Full-Length Prototype Quadrupole Magnets for the LHC Hi-Lumi Upgrade
/ Muratore, J (Brookhaven) ; Amm, K (Brookhaven) ; Anerella, M (Brookhaven) ; Ambrosio, G (Fermilab) ; Apollinari, G (Fermilab) ; Baldini, M (Fermilab) ; Carcagno, R (Fermilab) ; Chlachidze, G (Fermilab) ; Cheng, D (LBNL, Berkeley) ; Feher, S (Fermilab) et al.
The future high luminosity (Hi-Lumi) upgrade of the Large Hadron Collider (LHC) at CERN will include eight (plus two spares) 8.4 m-long cryostatted cold masses which will be components of the triplets for two LHC insertion regions. Each cold mass will consist of two 4.2 m long Nb3Sn high gradient quadrupole magnets, designated MQXFA, with aperture 150 mm and operating gradient 132.6 T/m, for a total of twenty magnets. [...]
FERMILAB-PUB-20-115-TD.-
2020 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4004205
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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