Off-axis emission of electrons by discharge of a low-inductance vacuum spark.

The article presents the results of the study of electrons, emitted by the plasma of a low-inductance vacuum spark. It was found that a 50-kA discharge with a 3.4-µs period of current oscillations produces electrons with the energy higher than 100 keV, which leave the discharge plasma in the direction perpendicular to the discharge axis.

Single-channel method for measuring the reflectance spectra of grazing incidence mirrors in the extreme ultraviolet range.

This Letter presents a one-channel method of measurements of a grazing incidence reflection coefficient. The idea is to use the quasi-flat field extreme ultraviolet spectrometer to produce direct and reflected from the sample images of the spectral lines simultaneously at the same detector matrix. The analysis of a set of spectral lines in the working spectral range of the spectrometer gives the spectral dependence of the reflection coefficient.

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.

Grazing incidence off Rowland spectrometer with shifted slit.

The article presents the analysis of the scheme of grazing incidence spectrometer with the normal to the line of site registration of the spectrum. The scheme is intended for the usage of the micro channel plate assembly as a spectrum detector. The main feature is the displacement of the entrance slit from the Rowland circle.