Alan W Desilva

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We describe here a four-channel spectral analyzer suitable for use in Thomson scattering diagnostics of plasmas, that incorporates several novel features and is inexpensive and physically compact. It is suitable for spectral analysis of light scattered from plasmas having densities down to approximately 10(14) cm(-3) and temperatures up to several hundred(More)
We report measurements of electrical conductivity of eight metals in the plasma state at densities ranging from 0.002 to 0.5 times solid density, and with internal energy from 2 to 30 kJ/gm. Data are presented as functions of internal energy and specific volume. Conductivity is observed to fall as the plasma expands for fixed internal energy, and for all(More)
The electrical conductivity of carbon plasmas is measured in the range of densities from about 0.6 solid density down to about 0.05 solid density, and reported for values of internal energy ranging from 2 to 22 kJ/gm . Plasmas are formed by rapid electrical discharge through thin graphite fibers immersed in a water bath. The pressure in the expanding plasma(More)
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