INTERACTION OF 1.06 MU-M LASER-RADIATION WITH HIGH Z-DISK TARGETS

被引：160

作者：

ROSEN, MD

PHILLION, DW

RUPERT, VC

MEAD, WC

KRUER, WL

THOMSON, JJ

KORNBLUM, HN

SLIVINSKY, VW

CAPORASO, GJ

BOYLE, MJ

TIRSELL, KG

机构：

[1] Lawrence Livermore Laboratory, University of California, Livermore

来源：

PHYSICS OF FLUIDS | 1979年 / 22卷 / 10期

关键词：

D O I：

10.1063/1.862501

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Gold disks have been irradiated with 1.06 μm laser light at intensities between 7 × 1013 and 3 × 1015 W/cm 2, and pulse lengths between 200 and 1000 psec. Due to the high Z and long pulse, inverse bremsstrahlung becomes an important absorption mechanism and competes strongly with resonance absorption and stimulated scattering. In addition to measured absorptions, data on the temporal, spatial, angular, and spectral characteristics of the x-ray emission are presented. Temporally and spectrally resolved back-reflected light, and polarization-dependent sidescattered light are detected, providing estimates for the amount of stimulated scattering and of the coronal electron temperature. Inhibited electron thermal conduction and nonlocal thermodynamic equilibrium ionization physics play key roles in bringing numerical simulations of these experiments into agreement with all of the above-mentioned data. © 1979 American Institute of Physics.

引用

页码：2020 / 2031

页数：12

共 49 条

[1]

AHLSTROM HG, 1977, REV SCI INSTRUM, V48, P1375

[2]

AHLSTROM HG, 1977, UCRL79819 LAWR LIV L

[3]

BAILEY DS, 1974, B AM PHYS SOC, V19, P868

[4] TRANSPORT INHIBITION IMPLIED BY DENSITY PROFILE FLATTENING IN THE CORONA OF LASER-HEATED MICROSPHERES [J].