C
Cristoforo Benvenuti
Researcher at CERN
Publications - 52
Citations - 1299
Cristoforo Benvenuti is an academic researcher from CERN. The author has contributed to research in topics: Niobium & Thin film. The author has an hindex of 19, co-authored 52 publications receiving 1169 citations.
Papers
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Journal ArticleDOI
Vacuum properties of TiZrV non-evaporable getter films
Cristoforo Benvenuti,Paolo Chiggiato,P. Costa Pinto,A Escudeiro Santana,T Hedley,A. Mongelluzzo,V Ruzinov,I. Wevers +7 more
TL;DR: In this paper, an updated review is given of the most recent results obtained on TiZrV coatings, covering the following topics: influence of the elemental composition and crystal structure on activation temperature, discharge gas trapping and degassing, dependence of pumping speed and surface saturation capacity on film morphology, ageing consequent to activation.
Journal ArticleDOI
A novel route to extreme vacua: The non-evaporable getter thin film coatings
Cristoforo Benvenuti,J.M. Cazeneuve,Paolo Chiggiato,Fabio Cicoira,A Escudeiro Santana,Viktor Johánek,V Ruzinov,Jordi Fraxedas +7 more
TL;DR: In this article, a thin film (∼1.5μm) of a getter material, and subsequently exposed to ambient air, has been found to recover a pumping action after “in situ bakeout.
Journal ArticleDOI
Decreasing surface outgassing by thin film getter coatings
TL;DR: In this paper, the UHV behavior of stainless steel vacuum chambers, coated ex situ by sputtering with a thin film of a getter material, has been investigated and it was shown that the getter film could be activated after air exposure by in situ baking, so as to transform the vacuum chamber from a gas source into a pump.
Journal ArticleDOI
Study of the surface resistance of superconducting niobium films at 1.5 GHz
Cristoforo Benvenuti,Sergio Calatroni,I. E. Campisi,P. Darriulat,M.A. Peck,Roberto Russo,A.-M. Valente +6 more
TL;DR: In this article, the superconducting properties of niobium films sputtered on the inner wall of radiofrequency cavities are studied, and the surface resistance is analyzed in terms of its dependence on temperature, on RF field and, when relevant, on the density of trapped fluxons.
Journal ArticleDOI
Nonevaporable getter films for ultrahigh vacuum applications
TL;DR: In this paper, the activation temperature of stainless steel vacuum chambers, ex situ sputter coated with a thin film of getter material, has been studied to determine if after air exposure the getter film could be activated by a bakeout so as to transform the coated vacuum chamber into a pump.