Association of High Speed Photography Spring Conference—27–28 March 1972

The Aim of this Work was to study the expansion of a gas breakdown plasma using our “home made” streak camera. Previous studies have used laser pulses less than 100 ns in duration. In our case the TEA (tetraethylammonium) CO2 laser generated appreciable amplitudes lasting several hundred nanoseconds; in this case a separate interaction process occurs during the laser pulse and a change in mechanism of expansion is observed. The laser was a helical geometric transverse excited CO2 laser 2 m by 2.5 cm pumped with a two-stage Marx-generator giving about 20 J in a 60-kV transient voltage pulse. The output is shown in Fig. 1.

Print ISSN

0361-4573

Published

1972-08

Content type

Original Research

DOI

10.5594/J13507