A method of gating the emission from the laser-produced plasmas of solid targets is described. A Pockels cell is operated between parallel polarisers and used as an optical shutter. If the shutter is opened after the continuum and multiply ionised species emission has subsided, a considerably simplified spectrum containing only singly ionised and atomic lines is obtained. Gated spectra from Mg, Al and Fe plasmas are shown.
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Watson et al. (1977) studied this question.
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