Speaker
Martina Martinello
(Fermilab - IIT)
Description
The trapped flux surface resistance dependence on surface treatment, RF field and resonance frequency has been intensively studied at FNAL. The findings of this study are here presented, with a particular focus on the level of sensitivity at high fields given by the state-of-the-art high-gradient treatments such as 120C baking, N-infusion and modified 75-120C baking . Analyzing these results altogether with the variation of the BCS surface resistance component, it is possible to understand which treatment gives the highest Q-factor at a given RF field, frequency and amount of trapped flux
