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1.
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Manufacture and performance test result of a 95 kA-class Nb-Ti cable-in-conduit conductor for the low field winding-package of CFETR-TF coil
/ Dai, Chao (Hefei, Inst. Plasma Phys.) ; Wu, Yu (Hefei, Inst. Plasma Phys.) ; Sedlak, Kamil (LPHE, Lausanne) ; Bajas, Hugo (LPHE, Lausanne) ; Nijhuis, Arend (Twente U., Enschede) ; Bruzzone, Pierluigi (LPHE, Lausanne) ; Devred, Arnaud (CERN) ; Qin, Jinggang (Hefei, Inst. Plasma Phys.) ; Liu, Yunhao (Hefei, CUST) ; Xue, Tianjun (Showa Wire Cable, Kawasaki) et al.
The engineering design of the CFETR TF prototype coil and conductors has been completed. The wind-package (WP) of the coil is graded into three regions based on the magnetic field distribution for saving cost. [...]
2023 - 8 p.
- Published in : Physica C 606 (2023) 1354212
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2.
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Performance of the Cable-in-Conduit Conductors for Super-X Test Facility
/ Dai, Chao (Hefei, Inst. Plasma Phys.) ; Wu, Yu (Hefei, Inst. Plasma Phys.) ; Shi, Yi (Hefei, Inst. Plasma Phys.) ; Sedlak, Kamil (Ecole Polytechnique, Lausanne) ; Bajas, Hugo (Ecole Polytechnique, Lausanne) ; Nijuis, Arend (Twente U., Enschede) ; Hao, Qiangwang (Hefei, Inst. Plasma Phys.) ; Han, Houxiang (Hefei, Inst. Plasma Phys.) ; Liu, YunHao (USTC, Hefei) ; Devred, Arnaud (CERN) et al.
Following the conceptual design, the engineering design of the dc magnet and cable-in-conduit conductor (CICC) for the Super-X test facility has been done in 2021. Totally three types of conductors with different structures were designed for the three pairs of coils in the dc magnet, respectively. [...]
2023 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 9500105
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3.
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3-D thermal-electric finite element model of a Nb$_3$Sn coil during a quench
/ Ferradas Troitino, Jose (U. Geneva (main) ; CERN) ; Ambrosio, Giorgio (Fermilab) ; Bajas, Hugo (CERN) ; Bordini, Bernardo (CERN) ; Ferracin, Paolo (CERN) ; Fleiter, Jerome (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Gomez, Jose Vicente Lorenzo (Barcelona Supercomputing Ctr.) ; Perez, Juan Carlos (CERN) ; Vallone, Giorgio (LBNL, Berkeley) et al.
High field superconducting magnets for particle accelerators often exhibit premature quenches. Once a normal zone is generated within the conductor, the quench may propagate causing temperature and resistive voltage rise along the coil. [...]
FERMILAB-PUB-19-403-TD.-
2019 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4701306
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4.
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Tests of the FRESCA2 100 mm bore Nb$_3$Sn block-coil magnet to a record field of 14.6 T
/ Willering, Gerard (CERN) ; Arnestad, Havard (CERN) ; Bajko, Marta (CERN) ; Bajas, Hugo (CERN) ; Bortot, Lorenzo (CERN) ; Bottura, Luca (CERN) ; Bourcey, Nicolas (CERN) ; Duda, Michal (CERN ; Cracow, INP) ; Ferracin, Paolo (CERN) ; Feuvrier, Jerome (CERN) et al.
The Nb$_3$Sn block coil dipole magnet FRESCA2 was developed within the framework of a collaboration between CEA Saclay and CERN, in the continuity of the European project EuCARD and EuCARD2. With an aperture of 100 mm and a target bore field of 13 T at 10.6 kA, the magnet is required for a new FRESCA2 cable test facility at CERN. [...]
2019 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4004906
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5.
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Magnetic measurements on the prototype magnets of the high-order correctors for HL-LHC
/ Fiscarelli, Lucio (CERN) ; Bajas, Hugo (CERN) ; Mangiarotti, Franco (CERN) ; Musso, Andrea (CERN) ; Russenchuck, Stephan (CERN) ; Mariotto, Samuele (LASA, Segrate ; Milan U.) ; Sorbi, Massimo (LASA, Segrate ; Milan U.) ; Statera, Marco (LASA, Segrate)
The National Institute for Nuclear Physics (INFN) is developing, at the Laboratory of Accelerators and Applied Superconductivity (LASA Milan, Italy), five families of corrector magnets, from skew quadrupole up to dodecapole order, which will be installed in the interaction regions of the High-Luminosity Large Hadron Collider (LHC). These magnets are based on a superferric design, which allows a relatively simple, compact and easy-to-construct magnets. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4003505
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6.
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Summary of the Mechanical Performances of the 1.5 m Long Models of the Nb$^3$Sn Low-$\beta$ Quadrupole MQXF
/ Vallone, Giorgio (LBL, Berkeley) ; Ambrosio, Giorgio (Fermilab) ; Anderssen, Eric C (LBL, Berkeley) ; Bajas, Hugo (CERN) ; Bourcey, Nicolas (CERN) ; Cheng, Daniel W (LBL, Berkeley) ; Chlachidze, Guram (Fermilab) ; Ferracin, Paolo (CERN) ; Grosclaude, Philippe (CERN) ; Guinchard, Michael (CERN) et al.
/LARP
The Nb3Sn quadrupole MQXF is being developed as a part of the LHC High Luminosity upgrade. The magnet design was tested on 1:5m long short models, sharing the same cross-section with the full-length magnets. [...]
FERMILAB-PUB-19-052-TD.-
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4002805
Fulltext: PDF;
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.4002805
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7.
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Measurements and Analysis of Dynamic Effects in the LARP Model Quadrupole HQ02b During Rapid Discharge
/ Sorbi, Massimo (INFN, Milan) ; Ambrosio, Giorgio (Fermilab) ; Bajas, Hugo (CERN) ; Chlachidze, Guram (Fermilab) ; Marinozzi, Vittorio (INFN, Milan) ; Mariotto, Samuele (INFN, Milan) ; Sabbi, Gianluca (LBL, Berkeley)
This paper presents the analysis of some quench tests addressed to study the dynamic effects in the 1-m-long 120-mm-aperture Nb$_{3}$Sn quadrupole magnet, i.e., HQ02b, designed, fabricated, and tested by the LHC Accelerator Research Program. The magnet has a short sample gradient of 205 T/m at 1.9 K and a peak field of 14.2 T. [...]
FERMILAB-PUB-16-395-TD.-
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4001605
Fulltext: PDF;
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.4001605
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8.
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9.
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Axial-Field Magnetic Quench Antenna for the Superconducting Accelerator Magnets
/ Marchevsky, Maxim (LBL, Berkeley) ; Hafalia, Aurelio R (LBL, Berkeley) ; Cheng, Daniel (LBL, Berkeley) ; Prestemon, Soren (LBL, Berkeley) ; Sabbi, Gianluca (LBL, Berkeley) ; Bajas, Hugo (CERN) ; Chlachidze, Guram (Fermilab)
We have developed and tested a novel magnetic inductive antenna for detecting and localizing quenches and flux jumps in superconducting accelerator magnets during ramping and steady-state operations. The antenna principle is based upon sensing temporal variation of the axial field gradient in the magnet bore that is specific to propagating quench. [...]
2015 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 25 (2015) 9500605
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.9500605
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10.
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Strategy for Superconducting Magnet Development for a Future Hadron-Hadron Circular Collider at CERN
/ Schoerling, Daniel (CERN) ; Bajas, Hugo (CERN) ; Bajko, Marta (CERN) ; Ballarino, Amalia (CERN) ; Benedikt, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Bordini, Bernardo (CERN) ; Bottura, Luca (CERN) ; Buzio, Marco (CERN) ; De Rijk, Gijs (CERN) et al.
Following the recommendation of the European Strategy Group for Particle Physics, a study on options for a Future Circular Collider (FCC) with centre-of-mass energy of 100 eV, a luminosity of 5-10 $\times 10^{34}$cm$^2$s$^{-1}$ and a circumference in the range of 100 km was started. The study integrates ongoing accelerator and technology initiatives at CERN, Geneva, Switzerland and in partner institutes and universities. [...]
CERN-ACC-2015-0099.-
Geneva : CERN, 2015
Fulltext: PDF;
In : European Physical Society Conference on High Energy Physics 2015, Vienna, Austria, 22 - 29 Jul 2015
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