Gamma-ray spectrometers measure the amount of occurring gamma radiation and the concentration of Potassium (K), Uranium (U), and Thorium (Th). Infrared spectrometers measure the reflection and absorption of infrared waveforms when directed towards a rock sample for mineral identification and analysis.
Handheld gamma-ray spectrometer with 2"x2" NaI detector.
Handheld gamma-ray spectrometer with 2"x2" BGO detector.