TY - T1 - Experimental study of the role of extrinsic and intrinsic vacuum arc breakdown mechanisms SN - / UR - URN:ISBN:978-951-51-7754-4; http://hdl.handle.net/10138/336482 T3 - A1 - Saressalo, Anton A2 - PB - Helsingin yliopisto Y1 - 2021 LA - eng AB - Electric discharge is present in various aspects of our everyday lives. Internal combustion engines rely on spark plugs for the running of the motor, fluorescent lighting functions by gas discharge and a lightning bolt strikes somewhere on earth every second. An electrical breakdown is an event where a voltage across two conductive electrodes, separated by an electrically insulating medium, becomes high enough for the insulating properties of the medium to be weakened, subsequently allowing an e... VO - IS - SP - OP - KW - physics N1 - PP - ER -