Dark current fluctuation measurements in RF structures

7 Jun 2018, 10:15


Mr Jan Paszkiewicz (University of Oxford (GB))


The dynamics of dislocation activity under intense electric fields has been proposed as a potential cause of breakdowns. In this talk, results of searches for high-frequency fluctuations in field-emitted current that could arise as a consequence of these dynamics are presented for high-gradient RF accelerating structures at CERN. Measurements of spatial profiles of field emission in RF structures and long-term variations are also discussed.

Primary author

Mr Jan Paszkiewicz (University of Oxford (GB))

Presentation materials