Irradiation of parylene disks with a 1.06 &mgr;m laser
作者:
R. A. Haas,
W. C. Mead,
W. L. Kruer,
D. W. Phillion,
H. N. Kornblum,
J. D. Lindl,
D. MacQuigg,
V. C. Rupert,
K. G. Tirsell,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1977)
卷期:
Volume 20,
issue 2
页码: 322-338
ISSN:0031-9171
年代: 1977
DOI:10.1063/1.861870
出版商: AIP
数据来源: AIP
摘要:
Parylene (C8H8) disks have been irradiated with Nd:YAG‐glass laser pulses focused to flux levels in the 1015to 1017W/cm2range. The flux level was varied by changing the pulse length (50–150 psec), the laser energy (5–15 J), and the axial position of the target with respect to thef/1.1 focusing lens. An extensive array of diagnostics was used to measure the temporal and energy distribution of the focused laser light at the target, the temporal and angular distribution of the scattered laser light, the x‐ray spatial and spectral emission characteristics, and the emitted ion and electron energy distributions. The experimental results, together with two‐dimensional numerical simulations imply absorption via collective processes, laser generation of suprathermal electrons, and transport inhibition consistent with the presence of mega‐Gauss level thermoelectric magnetic fields.
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