Nov 8 – 9, 2018
CERN
Europe/Zurich timezone

Trapped flux sensitivity studies as a function of: treatment, RF field and frequency

Nov 9, 2018, 9:03 AM
17m
30/7-018 - Kjell Johnsen Auditorium (CERN)

30/7-018 - Kjell Johnsen Auditorium

CERN

25
Show room on map

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

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