Measurement of density, temperature, and electrical conductivity of a shock-compressed nonideal nitrogen plasma in the megabar pressure range

Communication: Shock adiabat of atomic nitrogen at megabar pressures

“…Its value is different from the experimental one up to a constant ∼D/2, where D is the dissociation energy, and is connected with a different choice of the origin of energy in the present work and in Ref. 9. The ion contribution approaches (CS and IG) in this figure practically coincide.…”

“…9. In these experiments, high values of compression parameters (density ρ ∼ 3.25 g/cm 3 and temperature T ∼ 56 000 K at a pressure of P ∼ 265 GPa) are attained.…”

“…= 1465.2 eV, ρ 0 = 0.807 g/cm 3 . 9 The selected value of the energy E 0 is close to total ionization energy of nitrogen atom E I , i.e., the energy required to remove all electrons from a neutral atom (E I = 1486 eV).…”

“…The basic element of this approach is the use of an individual intrinsic volume (covolume) for each species of particles, which was chosen semiempirically. 6,9 Our model does not contain empirical factors, and in this sense is more rigorous. The sharp part of the adiabat (see Fig.…”

Review and progress in the study of the properties of warm dense matter

“…Hugoniot线上最大压缩比与Knudson等人 [14] 强磁场驱 动飞片实验结果一致. 2010年, Mochalov等人 [15] [23,24] 利用Nova激光装置发展了双背光技术, 测量了 铝、铌温密物质的不透明度. 1997~2004年, 以Da Silva 等人 [25] 、Boehly等人 [26] 、Mostovych等人 [27] 为首的研 究小组分别用Nova激光、Nike激光和OMEGA激光驱 动对液氘进行冲击压缩, 分别获得了~300, 100~600 和~900 GPa冲击压力.…”