Spectral-Line Broadening in a Plasma

摘要: The gist of phenomena spectral-line broadening is that the plasma line in question emitted by atoms not a narrow spectral band on order natural width (as would be case for one atom vacuum), but much wider frequency interval Δω. causes are, first, observed an individual entire ensemble whose emission frequencies can differ various reasons and, second, emitting acted upon external fields produced particles and waves plasma. actual cause governs both half-width its profile, i.e., intensity distribution frequency. I(ω) given represented as product total (integrated over spectrum) I0 factor J(ω) determines so $$ I(\omega ) = {{I}_{o}}J(\omega ),\;\int\limits_{{ - \infty }}^{\infty } {J(\omega )d(\omega 1.} $$ (1.1)