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Lateral transport of energy from a laser-produced plasma

1980; Institute of Physics; Volume: 13; Issue: 4 Linguagem: Inglês

10.1088/0022-3727/13/4/001

1361-6463

A. W. Ehler, Fred Begay, T. H. Tan, P H Castine,

X-ray Spectroscopy and Fluorescence Analysis

Fast ions produced by laser irradiance of the front side of a wire target also appeared on the back side. The speed of the energy transport around the wire was measured at approximately 2*108 cm s-1 and its temperature gradient was approximately 5*105 eV cm-1. The energy was transported a lateral distance of 1500 mu m away from the laser focal spot (100 mu m diam.) when protons were one of the plasma constituents. However, for a pure carbon target, the energy spread was not observed down to a distance of 300 mu m.