![]() ![]() Further gas fill densities have been investigated, and in agreement with simulations we find lower temperatures for lower gas densities. Argon spectral lines to be observed (763.5 and. Balmer lines from different spectral classes of. purpose a line intensity ratio method was applied for argon rf-plasma electron temperature (Te) measurements. In addition, the electron densities inferred from the line intensity ratio of the intercombination to the resonance line of heliumlike argon are consistent with 10 21 cm − 3 as expected from the initial gas fill density. Fig 4 Spectral intensity ratios (experimental and theoretical) give very good correlation(r0.98) using the. Withbroe, 1982b): Here h, c,, and R are Plancks constant, the velocity of light, the Einstein coefficient, and the ratio of the neutral hydrogen to proton density, respectively.(CGS units are used). The scattered intensity and noise introduced by the instrument are also added accordingly. The spectral line intensity of the resonantly scattered Ly-profile is given by (e.g. The temperature is varied from log(T) 6.0 to log(T) 6.5 in steps of 0.1. intensity ratio technique for optical fiber point temperature sensing. Furthermore the list does not contain the earlier work on multiplet ratios without temperature correction. are not included because their results can also be found in the above-mentioned papers. Although the heating is slower than predicted by hydrodynamic simulations, the measured peak electron temperature of T e=3 keV for neopentane-filled gas bags is in good agreement with the hydrodynamic simulations. The spectra are synthesized for the three channels at a height of 1.1 R, taking the electron density as 10 8.2 cm-3 and EM 10 27 cm-5. line strengths observed in both absorption and emission spectra. (Some theses on transition probabilities etc. About 0.4 ns after the beginning of the laser heating, we observe a homogeneous plasma center which heats steadily until the end of the heating pulse. By Abel inverting the experimental spectra and applying time-dependent collisional-radiative modeling, local electron temperatures, and densities are deduced. Particularly useful for the diagnostics of these plasmas are the line intensity ratios of the He- and H-like resonance lines to their respective Li- and He-like dielectronic satellite transitions. The I(15.01 A)/I(16.78 A) emission line intensity ratio in Fe XVII has been reported to deviate from its theoretical value in solar and stellar X-ray spectra. We present temporally and spatially resolved measurements of the K-shell emission from argon and chlorine dopants in laser-produced mm-size gas-bag plasmas.
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