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Current signals of exploding wire in atmospheric pressure (thick line), in 50 mTorr (dashed line) and in 50 μTorr (thin line). A signature of the wire explosion is evident only in atmospheric pressure.
(a) An illustration of the sealed capillary structure. The exit hole is sealed using a thin Ti foil that rips after the wire explosion. (b) Typical fast photography image of a plasma jet emerging from the sealed capillary device (in vacuum).
Time integrated, space resolved spectrum of the Ti plasma jet emerging from the sealed capillary. The plasma electron density is inferred from Stark broadening of the Ti-II 368.52 nm spectral line.
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