Hot‐electron energy deposition around unsupported laser targets
作者:
K. Eidmann,
A. Maaswinkel,
R. Sigel,
S. Witkowski,
F. Amiranoff,
R. Fabbro,
J. D. Hares,
J. D. Kilkenny,
期刊:
Applied Physics Letters
(AIP Available online 1983)
卷期:
Volume 43,
issue 5
页码: 440-442
ISSN:0003-6951
年代: 1983
DOI:10.1063/1.94381
出版商: AIP
数据来源: AIP
摘要:
Free‐falling spheres, released by a simple mechanism, are used as laser targets. Hot‐electron energy transport upon one‐sided irradiation with 300‐ps iodine laser pulses (6×1015W cm−2) is studied by various methods, including x‐ray pinhole photography and time‐resolved shadowgraphy. Spatial energy deposition is consistent with hot‐electron spreading in the presence of self‐generated magnetic fields, as suggested by recent experiments and simulations. The insensitivity of the results to the presence of a supporting stalk is attributed to inductive decoupling of the target. Free‐falling targets open the possibility of highly symmetric implosion experiments.
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