Paper |
Title |
Page |
THIOA03 |
Status of the HIE-ISOLDE Linac |
795 |
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- W. Venturini Delsolaro, L. Alberty, L. Arnaudon, K. Artoos, J. Bauche, A.P. Bernardes, J.A. Bousquet, E. Bravin, S. Calatroni, E.D. Cantero, O. Capatina, N. Delruelle, D. Duarte Ramos, M. Elias, F. Formenti, M.A. Fraser, J. Gayde, S. Giron, N.M. Jecklin, Y. Kadi, G. Kautzmann, Y. Leclercq, P. Maesen, V. Mertens, E. Montesinos, V. Parma, G.J. Rosaz, K.M. Schirm, E. Siesling, D. Smekens, A. Sublet, M. Therasse, D. Valuch, G. Vandoni, E. Vergara Fernandez, D. Voulot, L.R. Williams, P. Zhang
CERN, Geneva, Switzerland
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The HIE-ISOLDE project aims at increasing the energy of the radioactive beams (RIB) of REX-ISOLDE from the present 3 MeV/u up to 10 MeV/u for A/q up to 4.5. This will be accomplished by means of a new superconducting linac, based on independently phased quarter wave resonators using the Nb sputtering on copper technology, and working at 101.28 MHz. The focusing elements are superconducting solenoids providing 13.5 T2m field integral. These active elements are contained in a common vacuum cryostat. The presentation will cover the status of advancement of the HIE-ISOLDE linac technical systems. The performance of the superconducting elements will be presented, together with the assembly work of the cryomodule in clean room and the planned qualification tests in the horizontal test facility at CERN
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Slides THIOA03 [24.692 MB]
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THPP039 |
Electron Beam Welding and Vacuum Brazing Characterization for SRF Cavities |
932 |
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- N. Valverde Alonso, S. Atieh, I. Aviles Santillana, S. Calatroni, O. Capatina, L.M.A. Ferreira, F. Pillon, M. Redondas Monteserin, T. Renaglia, K.M. Schirm, T. Tardy, A. Vacca
CERN, Geneva, Switzerland
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In the framework of the SPL R&D effort at CERN, development design efforts study the joining of dissimilar metals: bulk niobium for the superconducting RF cavities and stainless steel (316LN) or titanium alloys (Ti-6Al-4V and Nb55Ti) for the cryostats. Joining techniques of electron beam welding (EBW) and vacuum brazing are particularly important for these applications. These processes have been used in the accelerator community and developed into generally accepted “best practice”. Studies were performed to update the existing knowledge, and comprehensively characterise these joints via mechanical and metallurgical investigations using modern available technologies. The developed solutions are described in detail, some currently being applied uniquely at CERN.
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Poster THPP039 [5.324 MB]
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THPP131 |
Series Superconducting Cavity Production for the HIE-ISOLDE Project at CERN |
1165 |
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- M. Therasse, L. Alberty, K. Artoos, S. Calatroni, O. Capatina, A. D'Elia, N.M. Jecklin, Y. Kadi, I. Mondino, K.M. Schirm, A. Sublet, W. Venturini Delsolaro, P. Zhang
CERN, Geneva, Switzerland
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In the context of the HIE-ISOLDE linac upgrade at CERN, the phase 1 planned to boost the energy of the machine from 3 MeV/u to 5 MeV/u. For this purpose, it is planned to install 2 cryomodules based on quarter waves resonators (QWRs) made by Niobium sputtering on Copper. The poster will present the different steps of the cavity series production since the reception from the industry to the cavity storage before cryomodule assembly. We will describe the cavity preparation included the resonance frequency measurement, the chemical treatment, the cavity rinsing, the Niobium coating and the RF test at 4.5K.
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