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Soft x-ray emission of e-beam-excited clustered supersonic gas jet

Soft X-ray radiation from krypton and nitrogen clusters in a supersonic gas jet is studied here. Isolated lines of He- like nitrogen ions in the 1.5 to 3.0 nm wavelengths region and of 7 to 13-charged ions of krypton in the 1.5 to 20 nm region are observed using to 4 to 6 keV electron beam excitation with 50 to 75 mA beam current. The obtained spectra are investigated depending the gas jet flow and excitation parameters.