This article is cited in 2 papers

Interaction of laser radiation with matter. Laser plasma

Versitile X-ray diagnostics of laser-produced high-temperature plasmas using an ultra-high luminosity spectrometer

A. P. Shevel'ko

P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow

Abstract: Versitile diagnostics of high-temperature magnesium laser-produced plasmas is performed using an ultra-high luminosity X-ray focusing crystal spectrometer. The plasmas are produced by focusing nanosecond laser pulses (0.53 μm, 1 J, 2 ns) on a massive magnesium target. The absolute intensities and X-ray yields are measured for the resonance lines of H- and He-like ions (spectral range: Δλ = 8–10 Å), the electron temperature of plasmas is determined (range: T_e = 200–550 eV), and the behaviour of these parameters is established in a broad range of laser pulse energy E_L (10 mJ – 1 J). This approach permits the parameters of laser-plasma radiation sources to be monitored in real time in a wide intensity range (difference in intensity: over 10⁴) and in a broad range of plasma parameters.

Keywords: high-temperature plasma diagnostics, X-ray spectroscopy and metrology, multiply charged ions, laser-produced plasma, X-ray spectrometers.

Received: 23.04.2019
Revised: 01.06.2019

 English version: Quantum Electronics, 2019, 49:9, 839–844

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