1.
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Fracture failure analysis for MQXFA magnet aluminum shells
/ Pan, Heng (LBNL, Berkeley) ; Anderssen, Eric C (LBNL, Berkeley) ; Ambrosio, Giorgio (Fermilab) ; Cheng, Daniel W (LBNL, Berkeley) ; Ferracin, Paolo (CERN) ; Prestemon, Soren O (LBNL, Berkeley) ; Takala, Eelis Tapani (CERN) ; Vallone, Giorgio (LBNL, Berkeley)
The High-Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP) is approaching the production phase of the US-contributed Q1 and Q3 Interaction Region Quadrupoles (MQXFA). The structures for the MQXFA prototypes were design and inspected by the US-LARP (LHC Accelerator Research Program), AUP developed criteria, which will be used for the pre-series structures. [...]
FERMILAB-PUB-20-118-TD.-
2020 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4002307
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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2.
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Mechanical Performance of the First Two Prototype 4.5 m Long Nb$_3$Sn Low-$β$ Quadrupole Magnets for the Hi-Lumi LHC Upgrade
/ Cheng, Daniel W (LBL, Berkeley) ; Ambrosio, Giorgio (Fermilab) ; Anderssen, Eric C (LBL, Berkeley) ; Ferracin, Paolo (CERN) ; Grosclaude, Philippe (CERN) ; Guinchard, Michael (CERN) ; Muratore, Joseph (Brookhaven) ; Pan, Heng (LBL, Berkeley) ; Prestemon, Soren O (LBL, Berkeley) ; Vallone, Giorgio (LBL, Berkeley)
The U.S. High-Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP) team is collaborating with CERN in the design and fabrication of the first 4.5 m long MQXFA magnets, a 150 mm aperture high-field Nb$_3$Sn quadrupole magnet that uses the aluminum shell-based bladder-and-key technology. [...]
FERMILAB-PUB-20-117-TD.-
2020 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4000906
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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3.
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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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4.
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Fabrication and Assembly Performance of the First 4.2 m MQXFA Magnet and Mechanical Model for the Hi-Lumi LHC Upgrade
/ Cheng, Daniel W (LBNL, Berkeley) ; Ambrosio, Giorgio (Fermilab) ; Anderssen, Eric C (LBNL, Berkeley) ; Bourcey, Nicolas (CERN) ; Felice, Helene (Saclay) ; Ferracin, Paolo (CERN) ; Grosclaude, Philippe (CERN) ; Guinchard, Michael (CERN) ; Perez, Juan Carlos (CERN) ; Pan, Heng (LBNL, Berkeley) et al.
The LHC accelerator research program (LARP), in collaboration with CERN and under the scope of the high luminosity upgrade of the Large Hadron Collider, is in the prototyping stage in the development of a 150 mm aperture high-field Nb$_3$Sn quadrupole magnet called MQXF. This magnet is mechanically supported using a shell-based support structure, which has been extensively demonstrated on several R&D; models within LARP, as well as in the more recent short (1.2 m magnetic length) MQXF model program. [...]
FERMILAB-PUB-17-372-TD.-
2018 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4006207
Fulltext: PDF;
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5.
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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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6.
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7.
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HD1: design and fabrication of a 16 Tesla Nb$_3$Sn dipole magnet
/ Hafalia, A R (LBNL, Berkeley) ; Bartlett, S E (LBNL, Berkeley) ; Caspi, S (LBNL, Berkeley) ; Chiesa, L (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Goli, M (LBNL, Berkeley) ; Gourlay, S A (LBNL, Berkeley) ; Hannaford, C R (LBNL, Berkeley) ; Higley, H (LBNL, Berkeley) et al.
The Lawrence Berkeley National Laboratory (LBNL) Superconducting Magnet Group has completed the design, fabrication and test of HD1, a 16 T block-coil dipole magnet. State of the art Nb$_3$Sn conductor was wound in double-layer racetrack coils and supported by an iron yoke and a tensioned aluminum shell. [...]
LBNL-57977.-
2004 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 14 (2004) 283-286
External link: Electronic Version from a server
In : 18th International Conference on Magnet Technology, Morioka, Japan, 20 - 24 Oct 2003, pp.283-286
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8.
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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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9.
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Use of High Resolution DAQ System to Aid Diagnosis of HD2b, a High Performance Nb$_3$Sn Dipole
/ Lizarazo, J (LBNL, Berkeley) ; Doering, D (LBNL, Berkeley) ; Doolittle, L (LBNL, Berkeley) ; Galvin, J (LBNL, Berkeley) ; Caspi, S (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Felice, H (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Godeke, A (LBNL, Berkeley) ; Joseph, J M (LBNL, Berkeley) et al.
A novel voltage monitoring system to record voltage transients in superconducting magnets is being developed at LBNL . This system has 160 monitoring channels capable of measuring differential voltages of up to 1.5 kV with 100 kHz bandwidth and 500 kS/s digitizing rate. [...]
2009 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 2345-2349
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10.
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Design and Fabrication of a Supporting Structure for 3.6 m Long Nb$_{3}$Sn Racetrack Coils
/ Ferracin, P (LBNL, Berkeley) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven Natl. Lab.) ; Barzi, E (Fermilab) ; Caspi, S (LBNL, Berkeley) ; Cheng, D W (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Gourlay, S A (LBNL, Berkeley) ; Hafalia, A R (LBNL, Berkeley) ; Hannaford, C R (LBNL, Berkeley) et al.
As part of the LHC accelerator research program (LARP), three US national laboratories (BNL, FNAL, and LBNL) are currently engaged in the development of superconducting magnets for the LHC interaction regions (IR) beyond the current design. As a first step towards the development of long Nb3Sn quadrupole magnets, a 3.6 m long structure, based on the LBNL subscale common-coil magnet design, will be fabricated, assembled, and tested with aluminum-plate "dummy coils". [...]
2007 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 17 (2007) 1023-1026
In : Applied Superconductivity Conference, Seattle, WA, USA, 27 Aug - 1 Sep 2006, pp.1023-1026
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