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1.
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High-Field Design Concept for Second Interaction Region of the Electron-Ion Collider
/ Gamage, Bamunuvita (Jefferson Lab) ; Arbelaez, Diego (LBNL, Berkeley) ; Aschenauer, Elke (Brookhaven) ; Berg, J (Brookhaven) ; Ent, Rolf (Jefferson Lab) ; Ferracin, Paolo (LBNL, Berkeley) ; Morozov, Vasiliy (ORNL, Oak Ridge (main)) ; Rajput-Ghoshal, Renuka (Jefferson Lab) ; Sabbi, GianLuca (LBNL, Berkeley) ; Satogata, Todd (Jefferson Lab) et al.
Efficient realization of the scientific potential of the Electron Ion Collider (EIC) calls for addition of a future second Interaction Region (2nd IR) and a detector in the RHIC IR8 region after the EIC project completion. The second IR and detector are needed to independently cross-check the results of the first detector, and to provide measurements with complementary acceptance. [...]
FERMILAB-CONF-22-989-TD.-
2022 - 3 p.
- Published in : JACoW NAPAC 2022 (2022) WEPA15
Fulltext: Publication - PDF; FERMILAB-CONF-22-989-TD - PDF; External links: JLAB Document Server; Fermilab Library Server
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.WEPA15
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2.
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Status of the MQXFB Nb$_3$Sn quadrupoles for the HL-LHC
/ Izquierdo Bermudez, Susana (CERN) ; Ambrosio, Giorgio (Fermilab) ; Apollinari, Giorgio (Fermilab) ; Ballarino, Amalia (CERN) ; Barth, Christian (CERN) ; Crouvizier, Mickael Denis (CERN) ; Duarte Ramos, Delio (CERN) ; Devred, Arnaud (CERN) ; Feher, Sandor (Fermilab) ; Felice, Helene (CERN) et al.
The cold powering test of the first two prototypes of the MQXFB quadrupoles (MQXFBP1, now disassembled, and MQXFBP2), the Nb3Sn inner triplet magnets to be installed in the HL-LHC, has validated many features of the design, such as field quality and quench protection, but has found performance limitations. In fact, both magnets showed a similar phenomenology, characterized by reproducible quenches in the straight part inner layer pole turn, with absence of training and limiting the performance at 93% (MQXFBP1) and 98% (MQXFBP2) of the nominal current at 1.9 K, required for HL-LHC operation at 7 TeV. [...]
FERMILAB-PUB-22-860-TD.-
2023 - 9 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4001209
Fulltext: PDF; External link: Fermilab Library Server
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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 p.
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4.
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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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Performance of a MQXF Nb$_3$Sn Quadrupole Magnet Under Different Stress Level
/ Izquierdo Bermudez, Susana (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bordini, Bernardo (CERN) ; Bourcey, Nicolas (CERN) ; Devred, Arnaud ; Ferracin, Paolo (LBNL, Berkeley) ; Ferradas Troitino, Jose (CERN) ; Ferradas Troitino, Salvador (CERN) ; Fiscarelli, Lucio (CERN) ; Fleiter, Jerome (CERN) et al.
In a dipole or in a quadrupole accelerator magnet, the displacement of the coil turns induced by the electromagnetic forces can cause quenches limiting the magnet performance. For this reason, an azimuthal preload is applied to avoid azimuthal movements of the coil up to the required operational current. [...]
arXiv:2204.11944; FERMILAB-PUB-22-223-TD.-
2022-05-10 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4007106
Fulltext: PDF; External link: Fermilab Accepted Manuscript
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4007106
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7.
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Magnetic and Mechanical Analysis of the HQ Model Quadrupole Designs for LARP
/ Felice, Helene (LBNL, Berkeley) ; Caspi, Shlomo (LBNL, Berkeley) ; Ferracin, Paolo (LBNL, Berkeley) ; Kashikhin, Vadim (Fermilab) ; Novitski, Igor (Fermilab) ; Sabbi, GianLuca (LBNL, Berkeley) ; Zlobin, Alexander (Fermilab)
Insertion quadrupoles with large bore and high gradient are required to upgrade the luminosity of the large hadron collider (LHC). The US LHC accelerator research program is developing Nb$_3$Sn technology for the upgrade. [...]
2008 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 18 (2008) 281-284
In : 20th International Conference on Magnet Technology, Philadelphia, PA, USA, 27 - 31 Aug 2007, pp.281-284
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8.
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9.
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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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10.
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Progress in the Development of the Nb$_3$Sn MQXFB Quadrupole for the HiLumi Upgrade of the LHC
/ Izquierdo Bermudez, Susana (CERN) ; Ambrosio, Giorgio (Fermilab) ; Apollinari, Giorgio (Fermilab) ; Bajko, Marta (CERN) ; Bordini, Bernardo (CERN) ; Bourcey, Nicolas (CERN) ; Duarte Ramos, Delio (CERN) ; Ferracin, Paolo (LBL, Berkeley) ; Fiscarelli, Lucio (CERN) ; Feher, Sandor (Fermilab) et al.
The high-luminosity upgrade of the Large Hadron Collider (HL-LHC) requires new high field and large-aperture quadrupole magnets for the low-beta inner triplets (MQXF). With a nominal operating gradient of 132.2 T/m in a 150 mm aperture and a conductor peak field of 11.3 T, the new quadrupole magnets are based on Nb3Sn superconducting technology. [...]
FERMILAB-PUB-21-126-TD.-
2021 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4002007
Fulltext: PDF;
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