Ion Emission from Laser-Produced Plasmas with Two Electron Temperatures

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Abstract
An analytic theory for the expansion of a laser-produced plasma with two electron temperatures is presented. It is shown that from the ion-emission velocity spectrum such relevant parameters as the hot- to cold-electron density ratio, the absolute hot- and cold-electron temperatures, and a sensitive measure of the hot- to cold-electron temperature ratio can be deduced. A comparison with experimental results is presented.