Journal ArticleDOI
Magnetic Measurements on the Prototype Magnets of the High-Order Correctors for HL-LHC
Lucio Fiscarelli,Hugues Bajas,Franco Mangiarotti,Andrea Musso,S. Russenchuck,Samuele Mariotto,Massimo Sorbi,Marco Statera +7 more
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TLDR
In this article, the magnetic field quality, in terms of transfer function and field multipoles, is analyzed as function of the excitation level, and the results of measurements at cryogenic temperature, up to the nominal field level, are reported.Abstract:
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. This activity takes place within the framework of a collaboration agreement between CERN and INFN. The magnets have been designed and prototype units have been built and tested for the sextupole, octupole, and decapole orders. Magnetic measurements have been performed in order to characterize the field quality, and to validate the design and construction. This paper presents the instruments and the approach for the magnetic measurements on the prototype magnets. Moreover, the results of measurements at cryogenic temperature, up to the nominal field level, are reported. The magnetic field quality, in terms of transfer function and field multipoles, is analysed as function of the excitation level. The iron saturation effects, which are a major concern of the selected design, are compared with the 3-D magnetic calculations and discussed in view of the construction of the series magnets to be integrated in the corrector package assembly.read more
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Journal ArticleDOI
The High Luminosity LHC interaction region magnets towards series production
Ezio Todesco,Hugues Bajas,Marta Bajko,Amalia Ballarino,S. Izquierdo Bermudez,Bernardo Bordini,L. Bottura,G. de Rijk,Arnaud Devred,D. Duarte Ramos,M. Duda,Paolo Ferracin,P. Fessia,J. Fleiter,Lucio Fiscarelli,A. Foussat,Glyn Kirby,Franco Mangiarotti,Matthias Mentink,A. Milanese,A. Musso,V. Parma,Jac Perez,H. Prin,Leonardo Paolo Rossi,S. Russenschuck,Gerard Willering,S. Enomoto,Tatsushi Nakamoto,N. Kimura,Toru Ogitsu,Michinaka Sugano,K. Suzuki,S. Wei,L. Gong,J. Wang,Q. Peng,Q. Xu,A. Bersani,B. Caiffi,P. Fabbricatore,S. Farinon,A. Pampaloni,Samuele Mariotto,M. Prioli,Massimo Sorbi,Marco Statera,J. Garcia Matos,F. Toral,Giorgio Ambrosio,Giorgio Apollinari,Maria Baldini,R. Carcagno,Sandor Feher,Stoyan Stoynev,Guram Chlachidze,Vittorio Marinozzi,V. Lombardo,F. Nobrega,Thomas Strauss,M. Yu,Michael Anerella,Kathleen Amm,P. Joshi,Joseph Muratore,Jesse Schmalzle,P. Wanderer,D. Chen,Stephen A. Gourlay,I. Pong,Soren Prestemon,G.L. Sabbi,Lance D. Cooley,H. Felice +73 more
TL;DR: In this article, the authors review the magnet requirements, the reasons for selecting the design, the technological challenges with respect to previous projects, and summarize the steps that have been taken to validate the baseline.
Journal ArticleDOI
Construction and Cold Test of the Superferric Decapole for the LHC Luminosity Upgrade
Marco Statera,F. Alessandria,F. Broggi,Augusto Leone,Vittorio Marinozzi,Samuele Mariotto,Antonio Paccalini,D. Pedrini,Mauro Quadrio,Massimo Sorbi,Maurizio Todero,Carlo Uva,Paolo Fessia,Andrea Musso,Ezio Todesco +14 more
TL;DR: In this article, the results of the cold tests of the decapole magnet are presented, including the training performed at 4.2 K and the qualification at 2.17 K. This activity takes place within the framework of a collaboration agreement between European Organization for Nuclear Research (CERN) and INFN.
Journal ArticleDOI
Construction and Cold Test of the Superferric Dodecapole High Order Corrector for the LHC High Luminosity Upgrade
Massimo Sorbi,F. Alessandria,Giovanni Bellomo,F. Broggi,Marco Campaniello,Marco Canetti,Alessandro Fumagalli,Fabrizio Gangini,Augusto Leone,Samuele Mariotto,Andrea Musso,Antonio Paccalini,Alessandro Pasini,D. Pedrini,Mauro Quadrio,Marco Statera,Maurizio Todero,Ezio Todesco,Riccardo Valente,Carlo Uva,Alessandro Zanichelli +20 more
TL;DR: In this paper, the authors present the prototype of dodecapole, a superferric configuration of a magnet that corrects the magnetic imperfections of the main magnets in the collision region.
Journal ArticleDOI
Completion of the Test Phase for the Hilumi LHC Skew Quadrupole Corrector Magnet
Marco Prioli,F. Broggi,Marco Campaniello,Marco Canetti,E. De Matteis,Fabrizio Gangini,L. Imeri,Augusto Leone,Paolo Manini,Samuele Mariotto,Andrea Musso,Antonio Paccalini,A. Palmisano,Alessandro Pasini,D. Pedrini,C Santini,Massimo Sorbi,M. Statera,Maurizio Todero,Ezio Todesco,Carlo Uva,Riccardo Valente,Alessandro Zanichelli +22 more
TL;DR: In this article, a first-hand experience showed the importance of adopting rigorous quality assurance methods for the electrical insulation, aimed at the early defect detection, and implementing a consistent measurement-to-simulations chain for the optimization of the coils mechanical support.
Journal ArticleDOI
Optimization of the High Order Correctors for HL-LHC Toward the Series Production
Marco Statera,F. Alessandria,Giovanni Bellomo,F. Broggi,Luca Imeri,Augusto Leone,Samuele Mariotto,Antonio Paccalini,Alessandro Pasini,D. Pedrini,Marco Prioli,Massimo Sorbi,Maurizio Todero,Carlo Uva,Riccardo Valente,Andrea Musso,Ezio Todesco,Marco Campaniello,Marco Canetti,Fabrizio Gangini,Paolo Manini,C Santini,Alessandro Zanichelli +22 more
TL;DR: Following the completion of the prototyping phase, the solutions chosen for the HO correctors are reported in detail, a perspective of the series construction in industry and acceptance tests at LASA is given, and the design of the test-bed and the optimization of cryogenic and testing procedures are described.
References
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Journal ArticleDOI
NbTi Superferric Corrector Magnets for the LHC Luminosity Upgrade
G. Volpini,F. Alessandria,Giorgio Bellomo,F. Broggi,Antonio Paccalini,D. Pedrini,Augusto Leone,Mauro Quadrio,L. Somaschini,Massimo Sorbi,Maurizio Todero,Carlo Uva,Paolo Fessia,Ezio Todesco,Fernando Toral +14 more
TL;DR: CERN and INFN, Italy, have signed an agreement for RD the fringe field analysis; the magnet powering and quench protection; mechanical and construction main choices as mentioned in this paper, which is the first agreement between the two organizations.
Journal ArticleDOI
Development of the Superferric Sextupole Corrector Magnet for the LHC Luminosity Upgrade
G. Volpini,F. Alessandria,Giorgio Bellomo,F. Broggi,Antonio Paccalini,D. Pedrini,Augusto Leone,Vittorio Marinozzi,Mauro Quadrio,Massimo Sorbi,M. Statera,Maurizio Todero,Carlo Uva,Paolo Fessia,Andrea Musso,Ezio Todesco,Fernando Toral +16 more
TL;DR: In this paper, the main features of the corrector magnet are reviewed, from the development of suitable solutions for the winding and impregnation to the quality assessment on the series coils, including the results of the first cryogenic tests on a single coil.
Journal ArticleDOI
Construction and Cold Test of the First Superferric Corrector Magnet for the LHC Luminosity Upgrade
Marco Statera,Giovanni Volpini,F. Alessandria,Giovanni Bellomo,F. Broggi,Antonio Paccalini,D. Pedrini,Augusto Leone,Vittorio Marinozzi,Mauro Quadrio,Massimo Sorbi,Maurizio Todero,Carlo Uva,Paolo Fessia,Andrea Musso,Ezio Todesco,Fernando Toral +16 more
TL;DR: In this article, the cold test results of the first prototype of the octupole and the decapole are presented, including the training performed at 4.2 k and the qualification at 2.2 K.
Journal ArticleDOI
Status of the Activity for the Construction of the HL-LHC Superconducting High Order Corrector Magnets at LASA-Milan
Massimo Sorbi,F. Alessandria,Giovanni Bellomo,F. Broggi,Augusto Leone,Vittorio Marinozzi,Samuele Mariotto,Andrea Musso,Antonio Paccalini,D. Pedrini,Mauro Quadrio,Marco Statera,Maurizio Todero,Ezio Todesco,Carlo Uva +14 more
TL;DR: In this paper, the authors present an overview of the activity, from the design, to the construction and test at the operation condition, of the prototype of five corrector magnets, from skew quadrupole to dodecapole, which will equip the high-luminosity interaction regions (IRs) of the HL-LHC.
Journal ArticleDOI
Construction and Cold Test of the Superferric Decapole for the LHC Luminosity Upgrade
Marco Statera,F. Alessandria,F. Broggi,Augusto Leone,Vittorio Marinozzi,Samuele Mariotto,Antonio Paccalini,D. Pedrini,Mauro Quadrio,Massimo Sorbi,Maurizio Todero,Carlo Uva,Paolo Fessia,Andrea Musso,Ezio Todesco +14 more
TL;DR: In this article, the results of the cold tests of the decapole magnet are presented, including the training performed at 4.2 K and the qualification at 2.17 K. This activity takes place within the framework of a collaboration agreement between European Organization for Nuclear Research (CERN) and INFN.
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