
%0 Journal Article
%A Akashi, H. 
%A Sakai, Y. 
%A Tagashira, H. 
%T Modeling of a Micro-streamer Initiation and Development of ArF Excimer Laser Discharges
%J Australian Journal of Physics
%D 1997/05/29
%V 50
%N 3
%P 655-669
%K 
%R https://doi.org/10.1071/P96078
%U https://www.publish.csiro.au/paper/P96078 
%X The dynamics of a constricted filamentary or &#8216;micro-streamer&#8217; discharge in a discharge-excited ArF excimer laser has been examined using a two-dimensional fluid model. The entire process on a micro-streamer, from its initiation and development to extinction, is shown. In the present model, a micro-streamer is triggered at protrusions which always exist on cathode surfaces, and develops in the direction of the anode assisted by the high field induced by space charge. A rise in the gas temperature in the micro-streamer in the vicinity of a cathode is seen, and which is found to play an important role in its development. The effect of preionisation electron density ne0 on the streamer development is also examined, and the streamer is found to extend significantly when ne0 becomes low. The results are explained in connection with experimental observations. 
