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15 results on '"Segreti, Michel"'

1. Status of the 16 T Dipole Development Program for a Future Hadron Collider

Author

Tommasini, Davide, Bermudez, Susana Izquierdo, Bordini, Bernardo, Bottura, Luca, Brower, Lucas, Buzio, Marco, Caiffi, Barbara, Caspi, Shlomo, Dhalle, Marc, Durante, Maria, deRijk, Gijs, Arbelaez, Diego, Fabbricatore, Pasquale, Farinon, Stefania, Ferracin, Paolo, Gao, Peng, Gourlay, Steve, Juchno, Mariusz, Kashikhin, Vadim, Lackner, Friedrich, Lorin, Clement, Marchevsky, Maxim, Auchmann, Bernhard, Marinozzi, Vittorio, Martinez, Teresa, Munilla, Javier, Novitski, Igor, Ogitsu, Toru, Ortwein, Rafal, Perez, Juan Carlos, Petrone, Carlo, Prestemon, Soren, Prioli, Marco, Bajas, Hugues, Rifflet, Jean-Michel, Rochepault, Etienne, Russenschuck, Stephan, Salmi, Tiina, Savary, Frederic, Schoerling, Daniel, Segreti, Michel, Senatore, Carmine, Sorbi, Massimo, Stenvall, Antti, Bajko, Marta, Todesco, Ezio, Toral, Fernando, Verweij, Arjan P, Wessel, Sander, Wolf, Felix, Zlobin, Alexander V, Ballarino, Amalia, Barzi, Emanuela, Bellomo, Giovanni, and Benedikt, Michael

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Affordable and Clean Energy, Future circular collider, superconducting, Nb3Sn, T, Condensed Matter Physics, Electrical and Electronic Engineering, Materials Engineering, General Physics, Electrical engineering, Condensed matter physics
Abstract

A next step of energy increase of hadron colliders beyond the LHC requires high-field superconducting magnets capable of providing a dipolar field in the range of 16 T in a 50-mm aperture with accelerator quality. These characteristics could meet the requirements for an upgrade of the LHC to twice the present beam energy or for a 100-TeV center of mass energy future circular collider. This paper summarizes the activities and plans for the development of these magnets, in particular within the 16 T Magnet Technology Program, the WP5 of the EuroCirCol, and the U.S. Magnet Development Program.

Published
2018

2. Overview of HTS Accelerator Magnet Developments at CEA Saclay

Author

Durante, Maria, Fazilleau, Philippe, Lecrevisse, Thibault, Lorin, Clement, Segreti, Michel, and Tellier, Olivier

Abstract

CEA Saclay is working since 2008 on High Temperature Superconductor (HTS) developments for accelerator magnet application. Two dipole models were realized at CEA Saclay: the EuCARD block dipole magnet and the EuCARD2 cosine-theta dipole magnet. The EuCARD block dipole magnet, relying on 12-mm REBCO tapes, was the first step to demonstrate the potential of REBCO type HTS ceramic tapes to generate 5-T field. The magnet manufacturing was completed in 2016, and the magnet cold tests performed at CEA in 2017. Magnet design and manufacturing process, as well as first cold tests of the magnet have already been presented in 2018. Since then, additional cold tests have been carried out up to the nominal current and beyond, reaching a record induction field of 5.37 T without quench. The EuCARD2 cosine-theta dipole magnet, relying on REBCO HTS Roebel cable, aimed also to produce a central 5-T dipole field, but with an accelerator-type dipole design and accelerator magnet field quality. The detailed design and coil manufacturing process have already been presented in 2019. Between 2019 and 2020, three coils were built, with a SuperOx tape based Roebel cable. In 2021, the magnet has been assembled, at CEA Saclay, with the last two produced coils, and in 2022 it has been cold tested at CERN in self field configuration. Despite the degraded performance of one of the coils, directly linked to an overheating problem during its production, the cold tests made it possible to highlight the good potential of the cos-theta design with Roebel cable.

Published
2024
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3. Mechanical Analysis and Assembly of MQYYM: A 90 mm NbTi Quadrupole Magnet Option for HL-LHC

Author

Simon, Damien, primary, Perez, Juan C., additional, Foussat, Arnaud, additional, Troitino, S. Ferradas, additional, Naini, S. Emami, additional, Guinchard, Michael, additional, Todesco, Ezio, additional, Felice, Helene, additional, Perraud, Simon, additional, Rifflet, Jean-Michel, additional, Rochepault, Etienne, additional, Segreti, Michel, additional, Ollier, Randy, additional, Minier, Gilles, additional, and Graffin, Patrick, additional

Published
2020
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5. The CLIQ Quench Protection System Applied to the 16 T FCC-hh Dipole Magnets

Author

Prioli, Marco, primary, Segreti, Michel, additional, Fernandez, Alejandro M., additional, Munilla, Javier, additional, Salmi, Tiina, additional, Auchmann, Bernhard, additional, Bortot, Lorenzo, additional, Maciejewski, Michal, additional, Verweij, Arjan, additional, Caiffi, Barbara, additional, Farinon, Stefania, additional, and Lorin, Clement, additional

Published
2019
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8. Development of MQYY: A 90-mm NbTi Double Aperture Quadrupole Magnet for HL-LHC

Author

Felice, Helene, primary, Segreti, Michel, additional, Simon, Damien, additional, Rifflet, Jean Michel, additional, Gheller, Jean Marc, additional, Bouziat, Denis, additional, Madur, Arnaud, additional, Graffin, Patrick, additional, Salvador, Henri, additional, Millot, Jean Francois, additional, Foussat, Arnaud, additional, Perez, Juan Carlos, additional, Bourcey, Nicolas, additional, Todesco, Ezio, additional, Fiscarelli, Lucio, additional, Dunkel, Olaf, additional, Fleiter, Jerome, additional, Toral, Fernando, additional, Krawcyzk, Pawel, additional, Bejar Alonso, Isabel, additional, Garcia Gavela, Hector, additional, and Losasso, Marcello, additional

Published
2018
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10. The 16 T Dipole Development Program for FCC

Author

Tommasini, Davide, primary, Auchmann, B., additional, Bajas, Hugues, additional, Bajko, Marta, additional, Ballarino, Amalia, additional, Bellomo, Giovanni, additional, Benedikt, Michael, additional, Bermudez, Susana Izquierdo, additional, Bordini, Bernardo, additional, Bottura, Luca, additional, Buzio, Marco, additional, Dhalle, Marc, additional, Durante, Maria, additional, de Rijk, Gijs, additional, Fabbricatore, Pasquale, additional, Farinon, Stefania, additional, Ferracin, Paolo, additional, Gao, Peng, additional, Lackner, Friedrich, additional, Lorin, Clement, additional, Marinozzi, Vittorio, additional, Martinez, Teresa, additional, Munilla, J., additional, Ogitsu, Toru, additional, Ortwein, Rafal, additional, Perez, Juan, additional, Prioli, M., additional, Rifflet, Jean-Michel, additional, Rochepault, Etienne, additional, Russenschuck, Stephan, additional, Salmi, Tiina, additional, Savary, Frederic, additional, Schoerling, Daniel, additional, Segreti, Michel, additional, Senatore, Carmine, additional, Sorbi, Massimo, additional, Stenvall, Antti, additional, Todesco, Ezio, additional, Toral, Fernando, additional, Verweij, Arjan P., additional, Volpini, Giovanni, additional, Wessel, Sander, additional, and Wolf, Felix, additional

Published
2017
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11. Issues In Special Magnets Studies: Deliverable: D3.1

Author

Fessia, Paolo, Kirby, Glyn, Todesco, Ezio, Segreti, Michel, and Rifflet, Jean-Michel

Subjects
Special Magnet Studies [3.5], Magnets for Insertion Regions [3], Accelerators and Storage Rings
Published
2014

12. Design of a Nb3Sn 16 T Block Dipole for the Future Circular Collider.

Author

Lorin, Clement, Segreti, Michel, and Durante, Maria

Subjects
*SUPERCONDUCTING Super Collider, *ELECTROMAGNETIC forces, *THREE-dimensional imaging, *COILS (Magnetism), *MECHANICAL properties of metals
Abstract

In the framework of the EuroCirCol project, the development of a conceptual design of the Future Circular Collider main dipole is performed. Here is described the status of the study focusing on the block coil layout. An electromagnetic investigation carried out in a double aperture configuration is reported. This study is followed by a preliminary investigation of the magnet performance in three-dimensional (3-D) taking into consideration the integrated field quality as well as the peak field in the coil ends. Finally, a 2-D mechanical analysis of the bladder and key structure is detailed. This study clearly shows that the design reaches the limit of the material properties. [ABSTRACT FROM AUTHOR]

Published
2018
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14. Vibrations en coupe orthogonale : Modélisation, étude de stabilité et validation expérimentale

Author

Segreti, Michel, UL, Thèses, Laboratoire de physique et mécanique des matériaux (LPMM), Université Paul Verlaine - Metz (UPVM)-Institut National Polytechnique de Lorraine (INPL)-Ecole Nationale d'Ingénieurs de Metz (ENIM)-Centre National de la Recherche Scientifique (CNRS), Université Paul Verlaine - Metz, Daniel Dudzinski, and Abdelhadi Moufki

Subjects
[SPI.OTHER]Engineering Sciences [physics]/Other, Outils de coupe-Vibration, [SPI.OTHER] Engineering Sciences [physics]/Other
Abstract

Not available, Cette thèse porte sur la modélisation des vibrations de l'outil en coupe orthogonale, l'étude de stabilité du processus et la validation expérimentale. Dans ce travail, un modèle à un seul, puis à deux degrés de liberté du processus vibratoire a été développé. Pour des conditions de coupe données, il est possible d'estimer les efforts de coupe instantanés, d'obtenir la réponse dynamique de l'outil et donc l'état de surface final, et de prévoir la limite de stabilité du processus caractérisée par des lobes. Différents effets couplés ont été pris en compte tels que : le frottement à l'interface outil-copeau fonction de la vitesse du copeau, les variations de la quantité de matière usinée dues aux ondulations de la surface à usiner associées aux oscillations de l'outil, les variations instantanées de l'angle de coupe et de dépouille, l'effet de la pente de la surface à usiner sur l'angle de cisaillement et le contact en dépouille de l'outil avec la surface nouvellement usinée.

Published
2002

15. Manufacturing and Test of a Short Nb3Sn Quadrupole Magnet Model at CEA/Saclay.

Author

Quettier, Lionel, Durante, Maria, Segreti, Michel, Simon, Fabrice, Leboeuf, Didier, and Le Noa, Yannick

Subjects
SUPERCONDUCTING magnets, QUADRUPOLES, ELECTRIC coils, MAGNETIC fields, LORENTZ force, NIOBIUM compounds
Abstract

IRFU/SACM at CEA/Saclay has undertaken an R&D program on Nb3Sn aimed at designing, building and testing a 1-m-long, 56-mm-single-aperture quadrupole magnet model. Model design is based on the design of LHC arc quadrupole magnets, without iron yoke. It is expected to reach a nominal field gradient of 211 T/m at 11,870 A. The main goal of the program is to learn about Nb3Sn technology and evaluate fabrication techniques relative to the use of this superconductor. Coils are manufactured by the so called "wind, react and impregnate" technique. Laminated, austenitic steel collars are locked around the coil assembly by means of keys in order to restrain Lorentz forces. Coil manufacturing and magnet assembly have been achieved in 2007. Cold mass assembly is under work. Warm field measurements are carried out at each step of magnet and cold mass assembly. After a brief recall of the conceptual design, the paper reviews the manufacturing of the coils and of the magnet assembly and presents the results of warm magnetic field measurements. [ABSTRACT FROM AUTHOR]

Published
2009
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