activity
20142021
most citedGrain-boundary structure and segregation in Nb3Sn coatings on Nb for high-performance superconducting radiofrequency cavity applications

47 citations · 90 across the 5 of their papers we have counts for

collaborators

6 papers

physics.app-ph2021

Internal Friction Measures to Study Precipitates Formation in EP and N-Doped Bulk Nb for SRF Applications

Tiziana Spina, Anna Grassellino, Alexander Romanenko

Main focus of this study is the investigation of thermodynamics phenomena responsible for the High Field Q Slope (HFQS) in SRF cavities by Internal Friction (IF) measurement. Mecha…

cond-mat.supr-con2020★ 24 cited

Microwave measurements of the high magnetic field vortex motion pinning parameters in NbSn

Andrea Alimenti, Nicola Pompeo, Kostiantyn Torokhtii +4

The high frequency vortex motion in NbSn was analyzed in this work up to 12 T. We used a dielectric loaded resonator tuned at 15 GHz to evaluate the surface impedance of a…

physics.app-ph2020★ 5 cited

Development and Understanding of NbSn films for radiofrequency applications through a sample-host 9-cell cavity

T. Spina, B. M. Tennis, J. Lee +2

NbSn is a promising advanced material under development for superconducting radiofrequency (SRF) cavities. Past efforts have been focused primarily on small development-scale c…

cond-mat.mtrl-sci2019★ 47 cited

Grain-boundary structure and segregation in Nb3Sn coatings on Nb for high-performance superconducting radiofrequency cavity applications

Jaeyel Lee, Zugang Mao, Kai He +7

We report on atomic-scale analyses of grain boundary (GB) structures and segregation in Nb3Sn coatings on Nb, prepared by the vapor-diffusion process, for superconducting radiofreq…

cond-mat.supr-con2019★ 14 cited

Surface impedance measurements on NbSn at high magnetic fields

Andrea Alimenti, Nicola Pompeo, Kostiantyn Torokhtii +4

NbSn is a superconductor of great relevance for perspective RF applications. We present for the first time surface impedance measurements at 15 GHz and low RF field amp…

physics.acc-ph2014

The behaviour of copper in view of radiation damage in the LHC luminosity upgrade

R. Flukiger, T. Spina

In view of the safe operation of the quadrupoles in the luminosity upgrade of the LHC accelerator, the response of the copper stabilizer at low temperatures to the various high ene…