Tunable laser spectroscopy in mineral prospecting
Abstract
Laser spectroscopy is applied to measure very low gas concentrations that may be specific in association with metallic ore deposits. An experiment on SO2 is detailed. The experimental setup is detailed together with the associated electronics required to compute derivative spectra. Maximum sensitivity was shown to be around 10 ppm of SO2. The major sensitivity limitation identified to lie with dissimilarities between the reference and measurement cells - together with other necessary improvements are discussed.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1977
- Bibcode:
- 1977STIN...7911397E
- Keywords:
-
- Laser Spectroscopy;
- Mineral Deposits;
- Mineral Exploration;
- Spectrum Analysis;
- Sulfur Oxides;
- Concentration (Composition);
- Sensitivity;
- Lasers and Masers