Dynamic compression of hydrogen isotopes at megabar pressures

被引:22
|
作者
Trunin, R. F. [1 ]
Urlin, V. D. [1 ]
Medvedev, A. B. [1 ]
机构
[1] All Russian Res Inst Expt Phys, Russian Fed Nucl Ctr, Sarov 607190, Nizhny Novgorod, Russia
关键词
EQUATION-OF-STATE; SHOCK-WAVE COMPRESSION; P-V-T; LIQUID DEUTERIUM; TEMPERATURE-MEASUREMENTS; VELOCITY-MEASUREMENTS; MOLECULAR-HYDROGEN; GPA; RANGE;
D O I
10.3367/UFNe.0180.201006d.0605
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We review the results of shock compression of solid protium to the pressure 66 GPa, of liquid deuterium to 110 GPa, and of solid deuterium to 123 GPa in explosive devices of spherical geometry. The results are compared with data obtained by US scientists using traditional energy sources (explosives and light-gas guns), striker acceleration in a strong magnetic field (Z facility at Sandia), and powerful lasers (Nova at Lawrence Livermore National Laboratory (LLNL) and Omega at the Laboratory for Laser Energetics, University of Rochester). Results of density measurements of hydrogen isotopes under quasi-isentropic compression are analyzed. The absence of an anomalous increase in density under shock and quasi-isentropic compression of hydrogen isotopes is demonstrated. On the other hand, both processes exhibit a sharp change in the compression curve slopes, at the respective pressures 45 and 300 GPa.
引用
收藏
页码:577 / 593
页数:17
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