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Fast electrons produced by the irradiation of plane-layered targets with 20-J, 100-ps, 10¹⁵-W.cm^-2, neodymium-laser pulses have been diagnosed by the Kα emission which they cause at various depths in the targets. The fast-electron energy spectrum and absolute energy deposition (target preheat) are measured.
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Hares et al. (1979) studied this question.
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