Thin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization

The HIE-ISOLDE project at CERN requires the production of 32 superconducting Quarter Wave Resonators (QWRs) in order to increase the energy of the beam up to 10 MeV/u. The cavities, of complex cylindrical geometry (0.3m diameter and 0.8m height), are made of copper and are coated with a thin superco...

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Autores principales: Sublet, A, Aviles, I, Calatroni, S, Costa Pinto, P, Jecklin, N, Prunet, S, Sapountzis, A, Venturini Delsolaro, W, Vollenberg, W
Lenguaje:eng
Publicado: 2013
Materias:
XX
Acceso en línea:http://cds.cern.ch/record/2063909
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author Sublet, A
Aviles, I
Calatroni, S
Costa Pinto, P
Jecklin, N
Prunet, S
Sapountzis, A
Venturini Delsolaro, W
Vollenberg, W
author_facet Sublet, A
Aviles, I
Calatroni, S
Costa Pinto, P
Jecklin, N
Prunet, S
Sapountzis, A
Venturini Delsolaro, W
Vollenberg, W
author_sort Sublet, A
collection CERN
description The HIE-ISOLDE project at CERN requires the production of 32 superconducting Quarter Wave Resonators (QWRs) in order to increase the energy of the beam up to 10 MeV/u. The cavities, of complex cylindrical geometry (0.3m diameter and 0.8m height), are made of copper and are coated with a thin superconducting layer of niobium. In the present phase of the project the aim is to obtain a niobium film, using the DC bias diode sputtering technique, providing adequate high quality factor of the cavities and to ensure reproducibility for the future series production. After an overview of the explored coating parameters (hardware and process), the resulting film characteristics, thickness profile along the cavity, structure and morphology and Residual Resistivity Ratio (RRR) of the Nb film will be shown. The effect of the sputtering gas process pressure and configuration of the coating setup will be highlighted.
id cern-2063909
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-20639092022-08-17T13:32:46Zhttp://cds.cern.ch/record/2063909engSublet, AAviles, ICalatroni, SCosta Pinto, PJecklin, NPrunet, SSapountzis, AVenturini Delsolaro, WVollenberg, WThin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film CharacterizationXXThe HIE-ISOLDE project at CERN requires the production of 32 superconducting Quarter Wave Resonators (QWRs) in order to increase the energy of the beam up to 10 MeV/u. The cavities, of complex cylindrical geometry (0.3m diameter and 0.8m height), are made of copper and are coated with a thin superconducting layer of niobium. In the present phase of the project the aim is to obtain a niobium film, using the DC bias diode sputtering technique, providing adequate high quality factor of the cavities and to ensure reproducibility for the future series production. After an overview of the explored coating parameters (hardware and process), the resulting film characteristics, thickness profile along the cavity, structure and morphology and Residual Resistivity Ratio (RRR) of the Nb film will be shown. The effect of the sputtering gas process pressure and configuration of the coating setup will be highlighted.oai:cds.cern.ch:20639092013
spellingShingle XX
Sublet, A
Aviles, I
Calatroni, S
Costa Pinto, P
Jecklin, N
Prunet, S
Sapountzis, A
Venturini Delsolaro, W
Vollenberg, W
Thin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization
title Thin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization
title_full Thin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization
title_fullStr Thin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization
title_full_unstemmed Thin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization
title_short Thin Film Coating Optimization For HIE-ISOLDE SRF Cavities: Coating Parameters Study and Film Characterization
title_sort thin film coating optimization for hie-isolde srf cavities: coating parameters study and film characterization
topic XX
url http://cds.cern.ch/record/2063909
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