3D GPS mapping of land contaminated with gamma-ray emitting radionuclides

Two studies are given in this paper. Both studies use a combined gamma sensing and global positioning system to monitor land contaminated with gamma emitting radioisotopes. The first is the 3D profiling a large (100 m×200 m×15 m) tip of the residue from radium extraction processing. The second is the dynamic monitoring of beaches to locate and recover small particles of radioactive material.