Radiometric techniques are used to detect anomalous concentrations of radiation in rock deposits. In a scintillometer, a crystal (typically sodium iodine) detects gamma ray intensity emanating from the ground surface. Analysis of this signal in specific energy bands is used to measure the contribution from various elements such as potassium, uranium and thorium. In addition to detecting increased concentrations from specific elements, this data is useful as a general geological mapping tool since the relative proportions of the various isotope contributions is often characteristic of specific lithological and geological units.
Applications
- Detect anomalous concentration in oil wells
- Detecting radioactive ore deposits