Study of the ion composition of an expanding magnesium plasma produced by a CO2 laser |
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| Authors: | K N Makarov S G Nishchuk V K Rerikh Yu A Satov I Yu Skobelev Yu B Smakovskii A N Starostin A E Stepanov T A Pikuz A Ya Faenov S V Khomenko |
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| Institution: | (1) Troitsk Institute of Innovation and Fusion Research, Troitsk, Moscow region, 142092, Russia;(2) All-Russia Research Institute of Physicotechnical and Radio Metrology, Mendeleevo, Moscow region, 141570, Russia |
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| Abstract: | The evolution of the ion composition of a laser plasma during its expansion over a large distance is studied. The plasma is produced by a TIR CO2 laser with a pulse energy up to 100 J and duration of ～20 ns. X-ray diagnostics with the use of a spectrograph and X-ray PIN diodes was applied to study the plasma near the target surface. At large distances from the target surface, time-of-flight neutral-particle diagnostics with the use of an electrostatic analyzer and ion collector was applied. Calculations performed with the GIDRA-1 code agree well with experimental data. |
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