Fine gamma full spectrum radon measurement method based on lanthanum bromide crystals

The invention belongs to the technical field of uranium mine exploration and specifically relates to a fine gamma full spectrum radon measurement method based on lanthanum bromide crystals. The methodcomprises the following steps of S1, selecting a fine gamma full spectrum radon measurement device system based on the lanthanum bromide crystals; S2, customizing active carbon boxes; S3, measuring backgrounds of the active carbon boxes; S4, calibrating the fine gamma full spectrum radon measurement device system based on the lanthanum bromide crystals; S5, selecting a measurement area and designing measurement point coordinates; S6, carrying out outdoor field point fixing through utilization of a handheld GPS; S7, carrying out punching, and embedding the active carbon boxes; S8, taking out the active carbon boxes; S9, measuring the active carbon boxes taken out in the S8 through utilization of the fine gamma full spectrum radon measurement device based on the lanthanum bromide crystals,and obtaining a measured f