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1.
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Analysis of the Mechanical Performance of the 4.2-m-Long MQXFA Magnets for the Hi-Lumi LHC Upgrade
/ Garcia Fajardo, L. (LBL, Berkeley) ; Ambrosio, G. (Fermilab) ; Yahia, A. Ben (Brookhaven) ; Cheng, D.W. (LBL, Berkeley) ; Ferracin, P. (LBL, Berkeley) ; Ferradas Troitino, J. (CERN) ; Izquierdo Bermudez, S. (CERN) ; Muratore, J. (Brookhaven) ; Prestemon, S. (LBL, Berkeley) ; Ray, K.L. (LBL, Berkeley) et al.
Under the U.S. High Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP), the 150 mm bore, high-field Nb3Sn low-{̱e̱ṯa̱}̱ MQXFA quadrupole magnets are being fabricated, assembled and tested, in the context of the CERN Hi-Luminosity LHC (HL-LHC) upgrade. [...]
arXiv:2303.16795; FERMILAB-PUB-23-116-TD.-
2023-03-27 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4003205
Fulltext: 2303.16795 - PDF; 4b8cc3a91b35c5867bfac57ac156409a - PDF; External link: Fermilab Accepted Manuscript
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2.
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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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3.
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Assembly and Pre-Loading Specifications for the Series Production of the Nb$_3$Sn MQXFA Quadrupole Magnets for the HL-LHC
/ Ferracin, P (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Cheng, D W (LBL, Berkeley) ; Ferradas Troitino, J (CERN) ; Garcia Fajardo, L (LBL, Berkeley) ; Izquierdo Bermudez, S (CERN) ; Prestemon, S (LBL, Berkeley) ; Ray, K L (LBL, Berkeley) ; Solis, M J (LBL, Berkeley) ; Todesco, E (CERN) et al.
The High Luminosity LHC (HL-LHC) Project is planning to install 16 cold-masses made with Nb3Sn quadrupole magnets in the LHC Interaction Regions to significantly increase its luminosity. Half of these cold masses are fabricated at BNL, FNAL, and LBNL under the US Accelerator Research Program (AUP). [...]
2022 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4000306
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4000306
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4.
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Power test of the second-generation Compact Linear Collider (CLIC) Nb$_3$Sn damping wiggler short model
/ Duda, Michal (Cracow, INP ; CERN) ; Mangiarotti, Franco (CERN) ; Bajko, Marta (CERN) ; Bernhard, Axel (KIT, Karlsruhe) ; Desbiolles, Vincent (CERN) ; Ferracin, Paolo (CERN) ; Feuvrier, Jerome (CERN) ; Garcia Fajardo, Laura (LBL, Berkeley) ; Lorenzo, Jose (CERN) ; Mazet, Jacky (CERN) et al.
In the frame of the compact linear collider project, a high-field short-period superconducting damping wigglers will be required to reduce the emittance of the electron and positron beams. The use of Nb$_3$Sn as superconducting material is being investigated, as a valid option for its smaller size and increased working margin. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4100405
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5.
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Publication
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6.
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Geometrical Behavior of Nb$_{3}$Sn Rutherford Cables During Heat Treatment
/ Durante, Maria (Saclay) ; Garcia Fajardo, Laura (CERN) ; Ferracin, Paolo (CERN) ; Manil, Pierre (Saclay) ; Perez, Juan Carlos (CERN) ; Rifflet, Jean-Michel (Saclay) ; Rondeaux, Francoise (Saclay)
In Nb$_{3}$Sn accelerator magnets, non-superconducting precursor cables are wound into their final coil shape and then heat treated at a high temperature to form the A15 superconducting phase. The growth of cable strands during reaction and the differential thermal dilatation in the coil components lead to both stress in the cable and geometrical deformations of the winding, with possible consequences on magnet performances [...]
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4802705
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4802705
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7.
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Dimensional Changes of Nb$_{3}$Sn Rutherford Cables During Heat Treatment
/ Rochepault, E (CERN) ; Ferracin, P (CERN) ; Ambrosio, G (Fermilab) ; Anerella, M (Brookhaven) ; Ballarino, A (CERN) ; Bonasia, A (CERN) ; Bordini, B (CERN) ; Cheng, D (LBL, Berkeley) ; Dietderich, D R (LBL, Berkeley) ; Felice, H (LBL, Berkeley) et al.
In high field magnet applications, Nb$_{3}$Sn coils undergo a heat treatment step after winding. During this stage, coils radially expand and longitudinally contract due to the Nb$_{3}$Sn phase change. [...]
FERMILAB-PUB-16-055-TD.-
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4802605
Fulltext: PDF;
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4802605
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8.
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ebook
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9.
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A CLIC Damping Wiggler Prototype at ANKA: Commissioning and Preparations for a Beam Dynamics Experimental Program
/ Bernhard, Axel (KIT, Karlsruhe, IPE) ; Bragin, Alexey (Novosibirsk, IYF) ; Casalbuoni, Sara (KIT, Karlsruhe, IPE) ; Ferracin, Paolo (CERN) ; Garcia Fajardo, Laura (CERN) ; Gerstl, Stefan (KIT, Karlsruhe, IPE) ; Gethmann, Julian (KIT, Karlsruhe, IPE) ; Grau, Andreas (KIT, Karlsruhe, IPE) ; Huttel, Erhard (KIT, Karlsruhe, IPE) ; Khrushchev, Sergey (Novosibirsk, IYF) et al.
In a collaboration between CERN, BINP and KIT a prototype of a superconducting damping wiggler for the CLIC damping rings has been installed at the ANKA synchrotron light source. On the one hand, the foreseen experimental program aims at validating the technical design of the wiggler, particularly the conduction cooling concept applied in its cryostat design, in a long-term study. [...]
CERN-ACC-2016-222; CLIC-Note-1095.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-WEPMW002
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPMW002
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