Barton Airborne Magnetic Radiometric and DEM Survey, SA, 2017 (P1284), radiometric line data

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Barton Airborne Magnetic Radiometric and DEM Survey, SA, 2017 (P1284), radiometric line data were acquired in 2017 by the SA Government, and consisted of 111668 line-kilometres of data at 200m line spacing and 60m terrain clearance.

辐射测量法（又称伽马射线能谱法）通过探测地球表层附近的伽马射线自然波动，以反映钾（K）、铀（U）及钍（Th）的天然放射性衰变所产生的辐射信号。所采集的数据将通过标准流程处理，确保记录的响应信号仅源自地下岩石的辐射。经处理得到的数据集可通过解译，揭示地下地质构造。经处理的数据将由GA地球物理学家开展质量核查，以确保GA发布的最终数据符合使用要求。2017年南澳大利亚州（South Australia，SA）巴顿航空磁辐射能谱与数字高程模型（Digital Elevation Model，DEM）测量项目（编号P1284）的辐射测量航线数据，由南澳大利亚州政府于2017年采集完成，总航线里程达111668线公里，航线间距为200米，地形净空高度为60米。