Speaker
Cecilia Maiano
(European Spallation Source)
Description
We describe here field emission measurements set-up, diagnostics tools used, analysis and results developed for ESS medium and high beta cryomodules tests . For high gradient, in particular, field emission can be the mechanism which limits cavities performances. A particualar focus will be given to analysis tools developed to tack potential materials activation, due to high energy photons emitted during cavities power ramp up.
Measurements at ESS test stand in Lund (and data collection plus analysis developed) are a joint effort between ESS and in-kinds at CEA (Saclay): details, description and outcome is here described.
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Author
Cecilia Maiano
(European Spallation Source)
Co-authors
Enrico Cenni
(Commissariat à l'Énergie Atomique et aux Énergies Alternatives)
Guillaume Devanz
(Commissariat à l'Energie Atomique)
Muyuan Wang
(European Spallation Source)
Olivier Piquet
(Commissariat à l'Energie Atomique)
Paolo Pierini
(European Spallation Source)
