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The interaction of 1.06 &mgr;m laser radiation with highZdisk targets

 

作者: M. D. Rosen,   D. W. Phillion,   V. C. Rupert,   W. C. Mead,   William L. Kruer,   J. J. Thomson,   H. N. Kornblum,   V. W. Slivinsky,   G. J. Caporaso,   M. J. Boyle,   K. G. Tirsell,  

 

期刊: Physics of Fluids(00319171)  (AIP Available online 1979)
卷期: Volume 22, issue 10  

页码: 2020-2031

 

ISSN:0031-9171

 

年代: 1979

 

DOI:10.1063/1.862501

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Gold disks have been irradiated with 1.06 &mgr;m laser light at intensities between 7 × 1013and 3 × 1015W/cm2, and pulse lengths between 200 and 1000 psec. Due to the highZand 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.

 

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