Related Experiment Video
Updated: Mar 17, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Analytical calculation of the light-collection efficiency of an optical emission spectrometer with the effective
Abstract:
A method is proposed for calculating the optical emission spectrometer (OES) light-collection efficiency using the effective solid angle from an arbitrary point source. Based on the point source-OES relative positioning, the effective solid angle is derived for four cases: (1) on axis and on the object plane; (2) on axis and outside the object plane; (3) off axis and on the object plane; and (4) off axis and outside the object plane. The results were in good agreement with those obtained through Monte Carlo ray tracing. After calculating the OES geometrical collection efficiency with respect to the object plane distance in three different-sized cylindrical volume sources, we suggest a simple strategy to increase this efficiency in plasma process monitoring.
More Related Videos
Related Concept Videos
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Lab
Atomic Absorption Spectroscopy: Radiation and Light Sources
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
Atomic Emission Spectroscopy: Instrumentation
UV–Vis Spectrometers

