11 citations · 11 across the 4 of their papers we have counts for
4 papers
Coupled simulation of plasma-surface interactions during early stages of vacuum arcing
Roni Koitermaa, Andreas Kyritsakis, Tauno Tiirats +2
We describe fully coupled simulations that bridge atomistic cathode dynamics and plasma formation during the earliest stages of vacuum arcing. The model combines molecular dynamics…
Influence of an external static magnetic field on prebreakdown electron emission and heating
Roni Koitermaa, Marzhan Toktaganova, Andreas Kyritsakis +4
High magnetic fields can increase the occurrence of vacuum arcing, suggesting that both electric and magnetic fields can play a role in the vacuum arcing process. The mechanism of…
In-situ observation of field-induced nano-protrusion growth on a carbon-coated tungsten nanotip
Guodong Meng, Yimeng Li, Roni Aleksi Koitermaa +3
Nano-protrusion (NP) on metal surface and its inevitable contamination layer under high electric field is often considered as the primary precursor that leads to vacuum breakdown,…
Simulating vacuum arc initiation by coupling emission, heating and plasma processes
Roni Koitermaa, Andreas Kyritsakis, Tauno Tiirats +2
Vacuum arcing poses significant challenges for high-field vacuum devices, underscoring the importance of understanding it for their efficient design. A detailed description of the…