Author(s)

R. A. El-Koramy, N. A Ashurbecov

.

Theoretical calculations which account for the complete absorption and intensity for the optical radiation He I (λ= 5875 Å) spectral line with fine structure of the transition 2³P_2,1,0 - 3³D_3,2,1 during He nanosecond discharge are presented. For different values of the absorption parameter (χ ₀?), the absorption quantity A of the three components distorted as a result of reabsorption multiple process has been numerically obtained and graphically presented. The theoretical results for small values of χ ₀? (≤4) give a good agreement with the experimental data in literature.

Optical Radiation Spectrum, Complete Absorption, Intracavity Laser Spectroscopy, Simpson’s Formula, Computer Processing

R. El-Koramy and N. Ashurbecov, "Calculation of Complete Absorption and Intensity of Optical Radiation Spectrum of HeI (λ= 5875Å) with Fine Structure," Journal of Modern Physics, Vol. 2 No. 6, 2011, pp. 564-571. doi: 10.4236/jmp.2011.26066.