Abstract
The Indian costus plasma properties are investigated, including electron temperature (Te), electron density (ne), plasma frequency (fp), Debye sphere length λD, and amount of Debye (ND), using laser-induced breakdown spectroscopy (LIBS). The study is done for different laser energies ranging from 300 to 600 mJ. The Boltzmann plot is used to calculate the temperature. The Indian costus is spectroscopically examined in the air with the laser 10 cm away from the target and the optical fiber 0.5 cm away. The X-ray fluorescence (XRF) analysis reveals that the Indian costus contains various minerals, each with a different percentage, which explains why the optical emission spectrum has so many peaks. Optical emission spectroscopy (OES) is used to analyze the plasma spectrum of the Indian costus in the air. The results show that as the laser energy grows, the amount of Debye will be greater, i.e (ND) >>>1, at a laser energy of 300 mJ, ND is 2.506775, as it increases to 600 mJ, ND becomes 3.006884, the electron temperature Te for 300 mJ is 1.86209223 eV as the energy increases, the Te becomes 2.205687353 eV.
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