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, prosp. Mira 37, Sarov, Nizhny Novgorod region, 607188, Russian Federation

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 Р ≈ 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 (all)
DOI: 10.3367/UFNe.2025.02.039874
URL: https://ufn.ru/en/articles/2025/9/b/
Citation: Mochalov M A, Ilkaev R I "Properties of nonideal plasma of noble gases and nitrogen shock compressed to 1 TPa" Phys. Usp. 68 883–904 (2025)

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Received: 30th, November 2024, revised: 18th, January 2025, accepted: 26th, February 2025

Оригинал: Мочалов М А, Илькаев Р И «Свойства неидеальной плазмы ударно-сжатых благородных газов и азота до 1 ТПа» УФН 195 939–961 (2025); DOI: 10.3367/UFNr.2025.02.039874

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