Extreme ultraviolet radiation of transient plasma in fast conical discharge

The article presents the results of the detailed experimental study of fast conical discharge with Ar as a working gas. The discharge produces a compact transient plasma which emits extreme ultraviolet (EUV) radiation with wavelength 10.8 nm. The intensity of this spectral line is an order of magnitude larger than the rest of the radiation in EUV band. Space resolved EUV spectra allowed us to get the estimation of the effective size of the...