M. A. Mochalov, R. I. Il'kaev, V. E. Fortov, A. L. Mikhailov, V. A. Arinin, A. O. Blikov, V. A. Ogorodnikov, A. V. Ryzhkov, V. A. Komrakov, I. P. Maksimkin, “Measurement of quasi-isentropic compressibility of gaseous helium at a pressure of <nobr>$\sim 10$</nobr> TPa”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2018, Volume 108, Issue 10,Pages <nobr>692

This article is cited in 14 papers

PLASMA, HYDRO- AND GAS DYNAMICS

Measurement of quasi-isentropic compressibility of gaseous helium at a pressure of $\sim 10$ TPa

M. A. Mochalov^a, R. I. Il'kaev^a, V. E. Fortov^b, A. L. Mikhailov^a, V. A. Arinin^a, A. O. Blikov^a, V. A. Ogorodnikov^a, A. V. Ryzhkov^a, V. A. Komrakov^a, I. P. Maksimkin^a

^a Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics (VNIIEF), Sarov, Nizhny Novgorod region, Russia
^b Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia

Abstract: A nonideal helium plasma has been compressed to a density of $\sim 9$ g/cm$^3$ by a pressure of $P\sim 10000$ GPa produced by an explosive charge of $85$ kg of TNT in a spherical two-cascade device. The experiment has been performed on an X ray setup using simultaneously three betatrons with a boundary energy of about $60$ MeV and a multichannel optoelectronic system of recording X-ray images. The pressure of the compressed helium has been determined from the gas-dynamic calculation.

Received: 20.09.2018

DOI: 10.1134/S0370274X18220022