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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 |
| Affiliation: | (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 |
| 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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