Moore A S, Gumbrell E T, Lazarus J, Hohenberger M, Robinson J S, Smith R A, Plant T J A, Symes D R, Dunne M
Plasma Physics Division, AWE Aldermaston, RG7 4PR. United Kingdom.
Phys Rev Lett. 2008 Feb 8;100(5):055001. doi: 10.1103/PhysRevLett.100.055001. Epub 2008 Feb 4.
Experimental investigations into the dynamics of cylindrical, laser-driven, high-Mach-number shocks are used to study the thermal cooling instability predicted to occur in astrophysical radiative blast waves. A streaked Schlieren technique measures the full blast-wave trajectory on a single-shot basis, which is key for observing shock velocity oscillations. Electron density profiles and deceleration parameters associated with radiative blast waves were recorded, enabling the calculation of important blast-wave parameters including the fraction of radiated energy, epsilon, as a function of time for comparison with radiation-hydrodynamics simulations.
对圆柱形、激光驱动的高马赫数激波动力学进行的实验研究，用于研究预计在天体物理辐射爆轰波中出现的热冷却不稳定性。一种纹影技术单次测量整个爆轰波轨迹，这对于观测激波速度振荡至关重要。记录了与辐射爆轰波相关的电子密度分布和减速参数，从而能够计算包括辐射能量分数ε随时间变化的重要爆轰波参数，以便与辐射流体动力学模拟进行比较。
