期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：1
页码：18786
DOI：10.15680/IJIRSET.2015.0401066
出版社：S&S Publications
摘要：In the present work, a pulsed Fe plasma generation by Q-switched Nd: YAG laser. The energy per pulse at the target surface was fixed at a level of (475 mJ, 6 ns), focused on Fe solid target at atmospheric pressure and vacuum pressure (1×10 -1 mbar).The plasma temperat ure was measured from Boltzmann plot using six Fe I spectral lines at the wavelengths (501.2, 534.1, 556.9, 576.2, 602.4 and 623.07) nm. The electron density was measured by means o f Stark broadening formula (FWHM) for spectral lines Fe I at line transition 576.2 nm and for Fe I at line transition 556.9 nm as the reference electron density, at atmospheric pressure and vacuum pressure. The density was 8.2x10 18 cm -3 and electron temperature 1.466 eV at atmospheric pressure, the electron density was 9x10 18 cm -3 and the electron temperature 1.71 1 eV at pressure (1×10 -1 ) mbar. Measurements were done based on theory of local thermodynamic equilibrium (LTE) in the range (500 -650 nm) of emitted spectrum
关键词：Laser-produced plasma; Plasma parameters; Fe plasma; Temperature; Electron density
