Abstract:Based on the temporal and spatial evolutions of the plasma plume, the behaviour of the laser-produced plasma is studied using a wire Langmuir probe. The plasma is generated by focusing a Nd:YAG laser pulse of 30 ns pulse duration, ∼110 mJ energy, and 1064 nm wavelength) on a solid metal (steel-316) target. By conducting experiments at low pressures (1 × 10 3 -5 × 10 −5 mbar), the following results were obtained: (a) At a lower pressure, the rise time of the electron signals is reduced, but the current amplitud… Show more
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