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Experimental results are given of spectral investigations of radiation of a cathode jet of varying chemical composition produced by a diaphragm discharge in a vacuum ultraviolet spectral region (115-190 nm) under conditions of magnetogasdynamic flow of plasma over a decimeter-scale interelectrode gap.

The pulsed Nd-laser applicaton to holographic relief oriented for the "oe--e" interaction. The SZS-23 filter (10) was used for cutting the IR part of radiation at the input of the holographic