This article is cited in 1 paper

Interaction of laser radiation with matter. Laser plasma

Spectroscopic VUV diagnostics of high-temperature iron plasmas using the comparison method

A. P. Shevelko

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

Abstract: We report the development of a new comparison method used to estimate the electron temperature Te of heavy-element plasmas and high-temperature iron laser-produced plasmas. To this end, two laser-produced plasmas – magnesium plasmas and iron plasmas – were studied at identical laser radiation fluxes on the target. Plasma diagnostics was performed using X-ray spectra of Hand He-like Mg ions. VUV spectra of Fe ions were recorded in the wavelength range 15 – 150 Å. As a result, the change in the structure of the VUV spectra of Fe ions as a function of Te in the range of 100 – 400 eV was studied. These data are necessary for diagnosing plasma sources containing the iron element.

Keywords: X-ray and VUV spectroscopy and plasma diagnostics, laser-produced plasmas, multiply charged ions, X-ray spectrometers.

Received: 28.02.2022
Revised: 29.03.2022

 English version: Quantum Electronics, 2022, 52:5, 469–473

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