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UFN, 2025 Volume 195, Number 9, Pages 939–961 (Mi ufn16011)

REVIEWS OF TOPICAL PROBLEMS

Properties of nonideal plasma of noble gases and nitrogen shock compressed to 1 TPa

M. A. Mochalov, R. I. Ilkaev

Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics (RFNC-VNIIEF), Sarov, Nizhny Novgorod region

Abstract: Results of experimental studies of compressibility, sound velocity, temperature, electrical conductivity, absorption, and reflection of light under shock compression of noble gases (argon, krypton, xenon) and liquid nitrogen are presented. Experiments were carried out at VNIIEF using condensed explosives in the pressure range up to $P\approx 1$ TPa. Experimental devices for producing and diagnosing states with high energy density are described. The data obtained were used to test and refine models of equations of state, when strong interparticle interaction affects the properties of substances, in the hard-to-calculate region of high-pressure nonideal plasma. Newly obtained and existing information on the properties of nonideal plasma of the materials studied is analyzed.

Keywords: nonideal plasma, noble gases, nitrogen, Hugoniot adiabat, speed of sound, temperature, electrical conductivity, equation of state

PACS: 43.25.Cb, 43.40.Jc, 52.25.Kn, 52.35.Tc, 64.30.Jk

Received: November 30, 2024
Revised: January 18, 2025
Accepted: February 26, 2025

DOI: 10.3367/UFNr.2025.02.039874


 English version:
Physics–Uspekhi, 2025, 68:9, 883–904

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© Steklov Math. Inst. of RAS, 2026