Emitting Gamma rays?
https://sciencenotes.org/gamma-rays-or-gamma-radiation-definition-and-properties/
"Airborne surveys of gamma-ray emissions from Earth’s surface search for minerals containing trace radioactive elements such as uranium and thorium. Aerial and ground-based gamma-ray spectroscopy is employed to support geologic mapping, mineral exploration, and identification of environmental contamination. Gamma rays were first detected from astronomical sources in the 1960s, and gamma-ray astronomy is now a well-established field of research. As with the study of astronomical X-rays, gamma-ray observations must be made above the strongly absorbing atmosphere of Earth—typically with orbiting satellites or high-altitude balloons (see telescope: Gamma-ray"
Emitting Gamma rays?
"Airborne surveys of gamma-ray emissions from Earth’s surface search for minerals containing trace radioactive elements such as uranium and thorium. Aerial and ground-based gamma-ray spectroscopy is employed to support geologic mapping, mineral exploration, and identification of environmental contamination. Gamma rays were first detected from astronomical sources in the 1960s, and gamma-ray astronomy is now a well-established field of research. As with the study of astronomical X-rays, gamma-ray observations must be made above the strongly absorbing atmosphere of Earth—typically with orbiting satellites or high-altitude balloons (see telescope: Gamma-ray"