Abstract
Radiofrequency superconducting Nb/Cu cavities for electron beam acceleration are studied in a collaboration between CEA and IN2P3 (CNRS). The quality of superconducting cavity is closely related to the purity of the surface material. In such an aim, carbon and oxygen contaminations at the surface and at the interface of the Nb/Cu device has been measured. Since the niobium film is deposited on copper by magnetron sputtering under argon atmosphere, argon analysis is performed using the resonance in the nuclear reaction Ar{sup 40}(p,{gamma}){sup 41} K at the proton energy of 1102 keV. In order to simulate the energy deposition occurring during particle acceleration, Nb/Cu samples have been irradiated with a 600 keV argon beam. The element distribution evolution is then followed by RBS and NBS. Ion beam mixing effect in the case of samples with oxygen interface contamination (Nb/Nb + Ox + Cu/Cu) is shown to be enhanced.
Citation Formats
El Bouanani, M.
Characterization and modification of the interface of superconducting Nb/Cu cavities by ion beams; Caracterisation et modification de l`interface Nb/Cu de cavites supraconductrices par faisceaux d`ions.
France: N. p.,
1990.
Web.
El Bouanani, M.
Characterization and modification of the interface of superconducting Nb/Cu cavities by ion beams; Caracterisation et modification de l`interface Nb/Cu de cavites supraconductrices par faisceaux d`ions.
France.
El Bouanani, M.
1990.
"Characterization and modification of the interface of superconducting Nb/Cu cavities by ion beams; Caracterisation et modification de l`interface Nb/Cu de cavites supraconductrices par faisceaux d`ions."
France.
@misc{etde_10125329,
title = {Characterization and modification of the interface of superconducting Nb/Cu cavities by ion beams; Caracterisation et modification de l`interface Nb/Cu de cavites supraconductrices par faisceaux d`ions}
author = {El Bouanani, M}
abstractNote = {Radiofrequency superconducting Nb/Cu cavities for electron beam acceleration are studied in a collaboration between CEA and IN2P3 (CNRS). The quality of superconducting cavity is closely related to the purity of the surface material. In such an aim, carbon and oxygen contaminations at the surface and at the interface of the Nb/Cu device has been measured. Since the niobium film is deposited on copper by magnetron sputtering under argon atmosphere, argon analysis is performed using the resonance in the nuclear reaction Ar{sup 40}(p,{gamma}){sup 41} K at the proton energy of 1102 keV. In order to simulate the energy deposition occurring during particle acceleration, Nb/Cu samples have been irradiated with a 600 keV argon beam. The element distribution evolution is then followed by RBS and NBS. Ion beam mixing effect in the case of samples with oxygen interface contamination (Nb/Nb + Ox + Cu/Cu) is shown to be enhanced.}
place = {France}
year = {1990}
month = {May}
}
title = {Characterization and modification of the interface of superconducting Nb/Cu cavities by ion beams; Caracterisation et modification de l`interface Nb/Cu de cavites supraconductrices par faisceaux d`ions}
author = {El Bouanani, M}
abstractNote = {Radiofrequency superconducting Nb/Cu cavities for electron beam acceleration are studied in a collaboration between CEA and IN2P3 (CNRS). The quality of superconducting cavity is closely related to the purity of the surface material. In such an aim, carbon and oxygen contaminations at the surface and at the interface of the Nb/Cu device has been measured. Since the niobium film is deposited on copper by magnetron sputtering under argon atmosphere, argon analysis is performed using the resonance in the nuclear reaction Ar{sup 40}(p,{gamma}){sup 41} K at the proton energy of 1102 keV. In order to simulate the energy deposition occurring during particle acceleration, Nb/Cu samples have been irradiated with a 600 keV argon beam. The element distribution evolution is then followed by RBS and NBS. Ion beam mixing effect in the case of samples with oxygen interface contamination (Nb/Nb + Ox + Cu/Cu) is shown to be enhanced.}
place = {France}
year = {1990}
month = {May}
}