Speaker
Flyura Djurabekova
(University of Helsinki)
Description
Vacuum breakdowns in DC conditions between the electrodes with large gap (several mms) are believed to initiate at anode. We have investigate the origin of anodic plasma by setting up DC experiments with the fast intensified charge-coupled device camera (ICCD) and combining our observations with theoretical calculations. We observe the evolution of light emission, analyze the typical waveforms of voltage and current during the breakdown and conclude that origin of plasma is not at anode.
The presentation will discuss the new observations and give the overview of the theoretical efforts ongoing at University of Helsinki on a multiscale simulation of vacuum breakdown phenomenon.
Authors
Flyura Djurabekova
(University of Helsinki)
Zhipeng Zhou
(Xi’an Jiaotong University)
Andreas Kyritsakis
Zhenxing Wang
(Xi'an Jiaotong University)
Yi Li
(Xi’an Jiaotong University)
Yingsan Geng
(Xi'an Jiaotong University)
