A method to operate a plasma focus device for a laboratory use of a multispecies ion beam source is described. A time-resolved observation of the beam is carried out by developing a Thomson parabola ion analyzer with a detecting system consisting of an MCP (microchannel plate) with multianodes. An ion beam, in which energy of each component distributes from 80 to 350 keV and the pulse duration of the components are ∼20 ns in FWHM is obtained, when a mixture of H 2 and D 2 gas are adopted. Using the multispecies ion beam and the Thomson parabola analyzer, the electron multiplication factor of the MCP is simultaneously obtained for each species.
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Hirano et al. (1987) studied this question.
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