Methods for improving characteristics of laser source of ions

Khaydarov, R. T.; Terentev, V.B.; Akramov, Tohir Vohidovich; Tojinazarov, F. M.

doi:10.1134/s1063780x09100079

Cited by 1 publication

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References 5 publications

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“…2 By applying the method of mass-spectrometry for plasma formed under the action of neodymium laser radiation with the power density of 5×10 10 W/cm 2 on an aluminum target, it was found that in the plasma Al + , Al 2+ , Al 3+ , and Al 4+ are presented. In comparison with single-charged ions the numbers of double-charged, triple-charged and fourfoldcharged ions are twice, an order of magnitude, and two orders of magnitude respectively smaller [14].…”

Section: Resultsmentioning

confidence: 87%

Spectroscopic Diagnostics of Laser Plasma Plume of Aluminum

Чучман¹,

Mesarosh

Шуаибов³

2015

Optics

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The emission of aluminum Al laser ablated plasma has been investigated in the 200-600 nm spectral range. The most intensive spectral lines were 308.2; 309.3; 394.4 and 396.2 nm Al I. The highest levels of neutral atoms, responsible for the detected spectral lines, correspond to the two-electron excitation with 8.3-9.06 eV energy. The time average value of electron temperature on the 1 and 7 mm distances from the target was calculated. It is 0.43 eV for 1 mm and 0.51 eV for 7 mm distance from the target. The experimentally obtained time of recombination (29 ns) have been used to extract the electron number density at 1 mm from the target which is 9.4×1015 cm-3. The time-resolved emission of atomic spectral lines at 1 mm distance from the target was studied. The maximums of aluminum spectral lines emission have appeared in times of 8-20 ns, which correspond to atom velocities of (0.05-0.13)×10 6 m/s.

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Section: Resultsmentioning

confidence: 87%